PEOPLES’REPUBLIC OF CHINA - World Bank€¦ · Web viewAnalysis of acoustic environmental impact. 136. 7.2.3. Analysis of water environmental impact. 139. 7.2.4. Impact of solid

PEOPLES’REPUBLIC OF CHINABENGBU MUNICIPALITY

THE WORLD BANK

BENGBU INTEGRATED ENVIRONMENT IMPROVEMENT

PROJECT

R3 – Draft Consolidated Environmental Assessment ReportAugust 2007

French Grant, FASEP n°34DGTPE, Ministère de l’Economie des Finances et de l’Industrie, Paris, France

27, rue de Vanves-92772 Boulogne Billancourt Cedex -France-Tél : 33 (0) 1 46 10 25 40Fax : 33 (0) 1 46 10 25 49E-mail : [email protected]

Room 207B, 2/F, 64 Shamian Street, Liwan District, Guangzhou, P.R. ChinaTel/Fax: (86 20) 8121 6968E-mail: [email protected]

E1699v 1

mailto:[email protected]

PEOPLE’S REPUBLC OF CHINABENGBU MUNICIPALITY

Bengbu Integrated Environment Improvement ProjectR3- Draft Consolidated Environmental Assessment Report

This report has been published in collaboration with SOGREAH CHINA

Objet de l'indice Date Indice Rédaction ValidationNom Signature Nom Signature

Consolidated Environmental

Assessment Report (R3)14 August

2007a

b

c

d

Numéro de rapport: Rig00003Numéro d'affaire: A17978N° de contrat: CIGZ 07287Domaine technique: BV31

BURGÉAP27, rue de Vanves

92772 BOULOGNE-BILLANCOURT Cedex, FranceTéléphone: 33(0)1.46 10 25 40 Télécopie: 33(0)1. 46 10 25 49

e-mail: [email protected]

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mailto:[email protected]

TABLE OF CONTENTS

1 INTRODUCTION.................................................................................................14

1.1 BIEIP Project Background & Organization..........................................................................................141.1.1 Huai River Basin.................................................................................................................................141.1.2 Bengbu Municipality...........................................................................................................................151.1.3 BIEIP Project Organization.................................................................................................................171.1.4 Contributions of World Bank & Other Financing Agencies...............................................................17

1.2 General Background for Consolidated EA.............................................................................................201.2.1 Classification of Consolidated EA......................................................................................................201.2.2 Preparation of CEA.............................................................................................................................20

1.3 Coverage of this Consolidated EA...........................................................................................................21

1.4 Layout of the Consolidated EA Report...................................................................................................21

2 INSTITUTIONAL & REGULATORY FRAMEWORK...........................................23

2.1 Environmental Institutions and Roles.....................................................................................................23

2.2 Applicable Laws & Regulations...............................................................................................................242.2.1 National Laws & Regulations.............................................................................................................242.2.2 Local Regulations................................................................................................................................25

2.3 Environmental Quality Standards...........................................................................................................252.3.1 Surface Water Quality Classification and Standards..........................................................................252.3.2 Other Water Quality Standards...........................................................................................................262.3.3 Standards for Effluents from Industry and from WWTP....................................................................262.3.4 Standards for Solid Waste Management.............................................................................................262.3.5 Other Regulations & Standards...........................................................................................................26

2.4 World Bank Safeguards...........................................................................................................................27

3 ENVIRONMENTAL POLICY FRAMEWORK......................................................28

3.1 Main Environmental Issues and Strategies in Huai River Basin.........................................................283.1.1 Water Pollution...................................................................................................................................283.1.2 Water Scarcity.....................................................................................................................................29

3.2 Bengbu Municipal Environmental Quality Objectives.........................................................................293.2.1 Bengbu Municipal Urban Short-term Construction Plan....................................................................293.2.2 Bengbu Municipal Wastewater & Storm Drainage Master Plan........................................................303.2.3 Bengbu Municipal “Eleventh-five-year” Environmental Protection Objectives................................343.2.4 Bengbu Municipality Eleventh-five-year Plan for Water Resource Development.............................373.2.5 Construction Plan of Bengbu Ecological City....................................................................................38

3.3 Project Conformity with the Master Plans.............................................................................................39


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4 ENVIRONMENTAL BASELINE SITUATION......................................................43

4.1 Topography................................................................................................................................................43

4.2 Hydrology...................................................................................................................................................43

4.3 Geology.......................................................................................................................................................45

4.4 Climate.......................................................................................................................................................45

4.5 Soil and vegetation....................................................................................................................................46

4.6 Air...............................................................................................................................................................46

4.7 Surface Water............................................................................................................................................47

4.8 Groundwater.............................................................................................................................................49

4.9 Water Supply.............................................................................................................................................50

4.10 Storm Water and Wastewater Management..........................................................................................514.10.1 Existing Drainage System...................................................................................................................514.10.2 Existing Combined Drainage System and Storm Drainage System...................................................514.10.3 Existing Sewage System.....................................................................................................................524.10.4 Existing Problems...............................................................................................................................53

4.11 Water Pollution Source.............................................................................................................................544.11.1 Major Industrial Polluters...................................................................................................................544.11.2 Pollution enterprise situation in the construction place......................................................................56

4.12 Solid Waste Management.........................................................................................................................60

4.13 Ecological Environment............................................................................................................................60

4.14 Natural Hazards........................................................................................................................................61

5 PROJECT DESCRIPTION..................................................................................62

5.1 Project Summary......................................................................................................................................62

5.2 Project Quantities of the Proposed Projects...........................................................................................635.2.1 Tianhe Flood Control Project..............................................................................................................635.2.2 Longzi Lake Flood Control and Environment Improvement Project.................................................655.2.3 Urban (South of Huai River) Environmental Infrastructure Improvement Project............................665.2.4 Xijiagou & Baligou Environment Improvement Project....................................................................695.2.5 Huaishang District Flood Control and Urban Environmental Infrastructure Improvement Project...705.2.6 Guzhen County Integrated Environment Improvement Project..........................................................715.2.7 Huaiyuan County Integrated Environment Improvement Project......................................................745.2.8 Wuhe County Mohekou Integrated Environment Improvement Project............................................76

5.3 Analysis of Project Pollution Sources......................................................................................................775.3.1 Construction Period.............................................................................................................................775.3.2 Operation Period.................................................................................................................................77

6 INVESTIGATION & ASSESSMENT FOR THE CURRENT SITUATION OF PROJECT SITES.......................................................................................................80

6.1 Air Quality.................................................................................................................................................80RIg00002 A17978/CIGZ070287XDH/GDM

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LIST OF TABLESTable 1: Linkages between BIEIP and Anhui Water Environment Improvement Project....19Table 2: Bengbu Municipality Estimated Wastewater Amount（10,000 m3/d）.................31Table 3: Planned Wastewater Drainage System...............................................................33Table 4: Planning of Stormwater Drainage Catchments in Bengbu Urban Area................34Table 5: Conformity of the Proposed Projects with Existing Master Plans.........................40Table 6: Main Characteristics of Water Systems in Bengbu..............................................43Table 7: Monitoring results of air quality (annual average, unit: mg/m3).........................46Table 8: Statistics of acidic rain in Bengbu (2000-2005)...................................................47Table 9: Water quality classification of Huai River within Bengbu (2000-2006)................47Table 10: 2006 monthly average water quality monitoring data of Huai River.................48Table 11: Groundwater quality.........................................................................................50Table 12: Water quality of major centralized drinking water source in Bengbu (Upstream of

Bengbu Gate on Huai River).......................................................................................51Table 13: Non-compliant months for water intake upstream of Bengbu Gate...................51Table 14: Summary of Existing Drainage System in Bengbu Urban Area..........................51Table 15: Current Progress of Existing Sewage Systems..................................................53Table 16: The statistical table of pollution discharge situation from the key pollution

enterprise in Bengbu City in 2006..............................................................................54Table 17: Investigation on the discharged wastewater situation of the pollution enterprises

in the place of the construction..................................................................................58Table 18: Solid waste production and disposal in Bengbu (2000-2005)............................60Table 19: Summary of BIEIP sub-projects.........................................................................62Table 20: Quantities of main structures for Tianhe storm drainage station......................64Table 21: Summary of Major Project Quantities of Longzi Lake Sub-project.....................65Table 22: Quantities of storm drainage pumping station for the urban project................66Table 23: Quantities of Pipe Network for the Urban Project..............................................66Table 24: Project Quantities of Xijiagou & Baligou Project................................................69Table 25: Major quantities of Huaishang district project...................................................70Table 26: Project Quantities of Guzhen county project.....................................................71Table 27: Quantities of Huaiyuan county project..............................................................74Table 28: Project Quantities of Mohekou Project...............................................................76Table 29: Statistics of Monitored Data on Air Quality in Bengbu in 2005..........................80Table 30: Statistics of Comprehensive Pollutant Indicators of Major Pollutants at Each

Monitoring Site in 2005..............................................................................................81Table 31: Air Quality Monitoring and Assessment around Tianhe in 2005........................82Table 32: Record of Meteorological Parameters for Air Quality Monitoring for Wuhe Project

................................................................................................................................... 83Table 33: Statistics of Air Quality Monitoring for the Wuhe Project...................................83Table 34: Results of Air Quality Assessment.....................................................................84Table 35: Results of Air Quality Assessment.....................................................................85Table 36: Results of Routine Water Quality Monitoring in the Huaihe River......................87Table 37: Single Factor Evaluation of Annual Mean of Water Quality in the Bengbu Section

of the Huaihe River in 2006........................................................................................87Table 38: Routine monitoring of water quality in Tianhe River in 2006.............................88Table 39: Single factor evaluation of water quality in Tianhe River..................................88Table 40: Water quality monitoring in Longzi Lake...........................................................89Table 41: Single Factor Evaluation of Water Quality in Longzi Lake..................................90Table 42: Evaluation of surface water quality in the Guo River.........................................90Table 43: Single factor evaluation of water quality in Guo River.......................................91Table 44: Monitoring results in Guzhen section of Hui River during 2001～2005..............91Table 45: Single Factor Evaluation of Water Quality in the Hui River................................92Table 46: Monitoring results of the section water quality in Huaihongxin River of Huaihe

River and Xiangjian Lake............................................................................................93RIg00002 A17978/CIGZ070287

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Table 47: Single Factor Evaluation of Water Quality in Huaihongxin River.......................93Table 48: Monitoring Results of Water Quality in Xijiagou................................................93Table 49: Single Factor Evaluation of Xijiagou Water Quality...........................................94Table 50: Results of sanpudagou water quality monitoring..............................................94Table 51: Single factor evaluation of sanpudagou water quality.......................................95Table 52: Water quality monitoring in Huaiyuan pond......................................................95Table 53: Single factor evaluation of water quality in Huaiyuan pond..............................96Table 54: Monitoring of water quality in Zhanggong Mount Pond.....................................96Table 55: Groundwater Quality Monitored in the Surrounding Area of Longzi Lake..........97Table 56: Evaluation of underground water quality in Longzi Lake Area...........................97Table 57: Monitored Value of Urban Noise Pollution in 2006.............................................98Table 58: Monitored data on road traffic noise pollution in 2006 in Bengbu.....................98Table 59: Results and evaluation of noise pollution monitoring around the construction Site

.................................................................................................................................100Table 60: Results of noise pollution monitoring around Longzi Lake...............................101Table 61: Noise Monitoring Results for the Area Related to Urban Infrastructure Sub-project

.................................................................................................................................101Table 62: Monitoring results of noise pollution around Baligou and Xijiagou..................103Table 63: Monitoring results of urban noise pollution.....................................................104Table 64: Special monitoring of noise pollution..............................................................105Table 65: Monitoring results of noise pollution in the Huaiyuan project..........................106Table 66: Monitoring Results of Urban Noise Pollution in Mohekou Industry Zone..........107Table 67: Monitoring Results of the Sediment and Coastal Soil in Tianhe River..............108Table 68: Ecological Risk Factors and Indices of Heavy Metals in the Sediment in Tianhe

River and its Surrounding Farmland Soil...................................................................109Table 69: Vertical distribution of bottom mud in Longzi Lake.........................................110Table 70: Monitoring results of bottom mud in Longzi Lake............................................110Table 71: Monitoring results of the bottom mud in Longzi Lake area.............................111Table 72: Background soil value in each province of China............................................112Table 73: Ecological risk factors and indices of heavy metals in bottom mud of Longzi Lake

.................................................................................................................................112Table 74: Monitoring results of soil environmental quality in Baligou and Xijiagou.........113Table 75: Evaluation of ecological risks of dredged bottom mud in Baligou and Xijiagou114Table 76: Special monitoring results of bottom mud for Guzhen project........................114Table 77: Toxic Response Factor of Metals.....................................................................115Table 78: Division of Ecological Risk Factors and Indices................................................115Table 79: Evaluation of Ecological Risk of Bottom Mud...................................................116Table 80: Detection results of bottom mud for Haiyuan project.....................................117Table 81: Monitoring results of the bottom mud in the Industry Park.............................118Table 82: Evaluation of ecological risks of dredged bottom mud....................................118Table 83: Schedule of storm drainage pumping stations to be built and extended........120Table 84: Estimated benefit from water supply by Mohekou Surface Water Works........126Table 85: Estimated operating benefits of Mohekou Sewage Treatment Plant...............127Table 86: Estimated annual volume of sewage discharge in the urban plan of Bengbu..128Table 87: Statistics of reduction in total volume of the sewage treatment plant in Mohekou

Park..........................................................................................................................129Table 88: Car dust with different speed and road cleanness..........................................133Table 89: Settling velocity of dust particles with different size.......................................134Table 90: Monitoring results of TSP concentration downwind on the construction site...134Table 91: Standard of six-rating classification of odor intensity......................................135Table 92: Odor intensity of dredged bottom mud （dry excavation in the dry pond）in

Nanpaozi of Mudanjiang...........................................................................................135Table 93: Sound levels of major construction machinery................................................136Table 94: Calculation of noise attenuation of major noise-making machinery in the

construction period..................................................................................................137Table 95: Calculation of noise attenuation of major noise-making machinery in the

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Table 96: Statistical table of pollution discharge of city pollution discharge outlet.........143Table 97: Estimated results of collection rate of Bengbu City sewage pipe network......144Table 98: Statistical analysis table of water quality of Bengbu urban pollution discharge

outlets in 2005.........................................................................................................145Table 99: Reverse deduction estimate table of water quality of untreated sewage water of

Bengbu City in 2005.................................................................................................147Table 100: Estimated table of yearly total emissions of the pollutants of.......................148Table 101: Statistical table of date of pollution discharge outlet and monitoring section of

Bengbu City..............................................................................................................150Table 102: Statistical table of drainage of Bengbu City’s sewage treatment plants

10000 m3/d..............................................................................................................151Table 103: Summary statement of inlet and outlet water quality of the sewage treatment

plants.......................................................................................................................154Table 104: List of prediction contents of water environment of Bengbu section of the

Huaihe River in 2010................................................................................................155Table 105: Summary statement of conditions of prediction and parameters..................155Table 106: Prediction table of water quality of the sewage treatment plant under the

operation period.......................................................................................................156Table 107: Prediction results of water quality during normal operation period of the sewage

treatment plant........................................................................................................164Table 108: Prediction results of accidental discharge water quality ofthe sewage treatment

plant.........................................................................................................................167Table 109: Dredging wastewater composition of silt of the Sea of Grass........................168Table 110: Nitrogen and phosphorus contents during SS equivalent in the different

dredging areas of the dredging project of the Sea of Grass, the Dianchi River........170Table 111: Prediction emission concentration of project engineering wastewater..........170Table 112: Prediction of the contribution value of the concentration of the wastewater

emission to the water quality of the Longzi Lake......................................................171Table 113: Comparison situation of water quality before and after the implementation of

the Chaohu River dredging project...........................................................................174Table 114: Prediction results of Tianhe drainage pump station’s noise..........................178Table 115: Prediction results of the Longzi Lake drainage pump station’s noise............179Table 116: Prediction parameters table of typical sections’ noise..................................181Table 117: Noise prediction table of typical sections with different distances

Unit：dB(A)...............................................................................................................181Table 118: Comparison of the Longzi Lake dredging sludge...........................................182Table 119: Comparison of Baligou, Xijiagou sediment with the standard.......................185Table 120: Emissions of main solid wastes of sewage treatment plant..........................186Table 121: Statistical table of seasonal and yearly average temperature and wind speed of

Bengbu City..............................................................................................................189Table 122: Statistical results of wind direction and frequency in each month of the year189Table 123: Statistical table of distribution frequency of Atmospheric stability................191Table 124: Rainfall Characteristics Table........................................................................191Table 125: Average wind speed, hour concentration prediction results of the downwind H2S

with the different stabilities......................................................................................193Table 126: Average wind speed, hour concentration prediction results of the downwind NH3

with the different stabilities......................................................................................194Table 127: Calculating results of sanitation protection distance of sewage treatment plant

.................................................................................................................................196Table 128: Test Results for Sprinkling & Dust-Control on Construction Site....................198Table 129: Zero-option Comparison of Tianhe Flood Control Project..............................222Table 130: Zero-option Comparison of Longzi Lake Flood Control and Environment

Improvement Project................................................................................................223Table 131: Zero-option Comparison of Urban (South of Huai River) Environmental Infrastructure

Improvement Project...................................................................................................224Table 132: Zero-option Comparison of Xijiagou & Baligou Environment Improvement Project

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Table 133: Zero-option Comparison of Huaishang District flood control and Urban Environmental Infrastructure Improvement Project.................................................................................226

Table 134: Zero-option Comparison of Guzhen County Integrated Environment Improvement Project.......................................................................................................................227

Table 135: Zero-option Comparison of Huaiyuan County Integrated Environment Improvement Project.......................................................................................................................228

Table 136: Zero-option Comparison of Wuhe County Mohekou Integrated Environment Improvement Project....................................................................................................229

Table 137: Advantages & Disadvantages Comparison for Dredging Methods.................231Table 138: Comparison of Closure Pipelines Route Proposals of Drinking Water Source.232Table 139: Survey for Enterprise Basic Information of MoHekou Industrial Park.............234Table 140: Inflowing Water Qaulity of Sewage Treatment Plant in Haihua and Nanking

Chemical Area..........................................................................................................236Table 141: Schedule for CODcr Removal Effect and Predicated Outflowing Water Quality on

Key Technologies.....................................................................................................237Table 142: Summary of public participation and information publicity work..................239Table 143: Data sheet of information publicity of Bengbu World Bank Project...............244Table 144: Sheet of the public opinions and the feedback results..................................252Table 145: Sheet of the results summary of the symposium on the environmental impact of

the Huaiyuan Project................................................................................................254Table 146: Sheet of the results summary of the conference on the environmental impact of

the Guzhen County Project.......................................................................................256Table 147: Sheet of the results summary of the conference on the environmental impact of

the Mohekou Project in the Wuhe County.................................................................258Table 148: List of the summary of experts’ opinions on Bengbu World Bank loan project260Table 149: Summary of the public participation survey in the EIA of the Bengbu World Bank

Loan Project..............................................................................................................264Table 150: Managerial Relationship between Administrative Authority and Project.......276Table 151: Environmental monitoring plan of the Tianhe Project during construction period

.................................................................................................................................282Table 152: Environmental monitoring plan of Longzi Lake project during construction period

.................................................................................................................................283Table 153: Environmental monitoring plan of Longzi Lake project during operation period

.................................................................................................................................284Table 154: Environmental monitoring plan of urban project during construction period 284Table 155: Environmental monitoring plan of urban project during operation period.....285Table 156: Environmental monitoring plan of Xijiagou & Baligou project during construction

period.......................................................................................................................286Table 157: Environmental monitoring plan of Huaishang project during construction period

.................................................................................................................................287Table 158: Environmental monitoring plan of Huaishang project during operation period287Table 159: Environmental monitoring plan of Guzhen project........................................288Table 160: Environmental monitoring plan of Huaiyuan Project during construction period

.................................................................................................................................290Table 161: Environmental monitoring plan of Huaiyuan project during operation period290Table 162: Environmental monitoring plan of Mohekou Project during construction period

.................................................................................................................................291Table 163: Environmental monitoring plan of Mohekou Project during operation period 292


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LIST OF FIGURESFigure 1: Map of Huai River Basin.....................................................................................14Figure 2: Topographic map of Huai River Basin and its relative location compared with other

major rivers in China..................................................................................................15Figure 3: Location of Bengbu in P.R. China.......................................................................16Figure 4: Districts & Counties of Bengbu Municipality......................................................16Figure 5: Organization chart of BIEIP................................................................................17Figure 6: Coverage of World Bank and Japanese loan-funded projects in Bengbu............18Figure 7: Overview of Bengbu Urban Wastewater and Storm Drainage Plan....................32Figure 8: Aquatic Systems in Bengbu Municipality............................................................44Figure 9: Variation of water quality classification for Huai River (2004-2006)..................48Figure 10: Water Intake & Water Quality Monitoring Cross-sections along Huai River......49Figure 11: Statistical analysis chart of pollution discharge volume of Bengbu City pollution

discharge outlets......................................................................................................144Figure 12: Statistical analysis chart of CODcr emissions of Bengbu City........................146Figure 13: Statistical analysis chart of ammonia nitrogen emissions of Bengbu City pollution

discharge outlets in 2005.........................................................................................146Figure 14: Statistical Chart of Sewage Discharge Amount in 2010.................................149Figure 15: Statistical Chart of Total Discharge Amount of CODcr in 2010.......................149Figure 16: Statistical Chart of Total Discharge Amount of Ammonia Nitrogen in 2010. . .150Figure 17: 2010 Urban Drainage Proposal C, D - Prediction Chart of CODcr Discharge Impact

.................................................................................................................................158Figure 18: 2010 Urban Drainage Proposal C, D - Prediction Chart of CODcr Discharge Impact

.................................................................................................................................159Figure 19: 2010 Urban Drainage Proposal A, B - Prediction Chart of Ammonia Nitrogen

Discharge Impact.....................................................................................................160Figure 20: 2010 Urban Drainage Proposal C, D - Prediction Chart of Ammonia Nitrogen

Discharge Impact.....................................................................................................161Figure 21: Prediction results of project engineering wastewater discharge on the water172Figure 22: Annual wind direction rose diagram of Bengbu City......................................191Figure 23: Online Public Notification of Project Information............................................242Figure 24: Project Public Notification in the Project Location..........................................243Figure 25: Public Notification of Project Information in Newspaper.................................243Figure 26: Public participation survey and public workshops..........................................247


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Acronyms and AbbreviationsAIEC Average incremental economic costAWEIP Anhui Water Environment Improvement ProjectBDC Bengbu Drainage CompanyBIEIP Bengbu Integrated Environment Improvement

ProjectBMAD Bengbu Municipal Administration DivisionBOT build-operate-transferCB Construction BureauCEA Consolidated Environmental AssessmentCOD Chemical Oxygen DemandDI Design InstituteDRA Design Review and Advisory (consultant

BURGEAP)DRC Development and Reform CommissionEA Environmental AssessmentEDD Economy Development DistrictEIA Environmental Impact AssessmentEIRR Economic internal rate of returnEOCC Economic Opportunity Cost of CapitalEPB Environmental Protection BureauFSR Feasibility study reportGDP Gross Domestic ProductHH HouseholdHRWRC Huai River Water Resource CommissionHTZ High Tech ZoneIDC Interest during constructionMoF Ministry of FinanceNBF nonblank-financedNCMDI North China Municipal Design InstituteO&M Operation and MaintenancePIU Project Implementation UnitPMO Project Management OfficePS Pumping stationPSP Private Sector Participation RAP Resettlement Action PlanSA Social AssessmentSEPA State Environment Protection AgencySOE State Owned EnterpriseSWAP Sector Wide ApproachTA Technical assistanceWB World BankWRB Water Resources BureauWTP Water treatment plantWWTP Waste Water Treatment Plant


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1 Introduction

1.1 BIEIP Project Background & Organization

1.1.1 Huai River Basin

The Huai River Basin is the third largest river basin of China covering 270,000 km2 of four provinces (Anhui, Henan, Jiangsu and Shandong). Its total population is 165million1, and its population density is 611persons/km2, which is 4.8 times of the national level. Due to its central location in China, Huai River Basin has a very developed transportation system, which consists of several key railways, Jinghang Canal, Huai River, inland rivers and highways extending in all directions. Featured by its typical agricultural economy, the basin is also strategically important for the whole country from an economic perspective. It produces 1/6 of the nation’s food and 1/4 of the national cash crops with only 1/12 of the national arable land area. However, the gross industrial output value, GDP and per-capita GDP of the basin are still lower than the national levels, that is, the basin still belongs to the economically undeveloped area.

Figure 1: Map of Huai River Basin

1 Data by the end of 2000.RIg00002 A17978/CIGZ070287

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Figure 2: Topographic map of Huai River Basin and its relative location compared with other major rivers in China

The particular geographical and climatic conditions and the interference of human activities for decades have made the Huai River Basin very vulnerable to floods and droughts. Although a flood control system consisting of reservoirs, flood storage and discharge projects, dykes, rivers and flood ways has been developed for the basin since the foundation of the P.R.C., it still suffers a lot from the floods once every three to five years. In addition, despite the great efforts put by the central and local governments since 1990’s, the water pollution remains a major concern for the Huai River basin due to the rapid industrial development and urbanization in this area.

1.1.2 Bengbu Municipality

Bengbu Municipality, located in the northeast of Anhui province, has four districts (Longzihou, Bangshan, Yuhui and Huaishang), three counties (Huaiyuan, Wuhe and Guzhen) and two development zones (High-tech Industry Development Zone and Economic Development Zone) under its administration. It covers an area of 5952 km2 (4.27% of the provincial area) and a population of 3.49 million (5.36% of the province).


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Figure 3: Location of Bengbu in P.R. China

Figure 4: Districts & Counties of Bengbu MunicipalityBengbu is the first municipality of Anhui Province, which is also the most important traffic hub in East China and the biggest port city along Huai River. As an old industrial city, Bengbu is the Processing /Technology and Commerce Centre in Northern Anhui. The major industries in Bengbu include deep processing of agricultural products and refined chemicals, glass and glass products, special machinery manufacture and automobile parts. With the approval of the State Council, it is also one of the pilot cities in Middle China benefiting from the same national policies as applied to the revitalization of Old Industrial Base in Northeast China. With the rapid economic development and urbanization, the current per capita GDP of Bengbu here has reached 10000yuan. During the “Tenth-five-year” period, Bengbu Municipality has attracted 43million USD foreign investment and 13.5billion RMB domestic investment from out of Bengbu, mainly in the secondary and tertiary industries.However, due to the insufficient industrial investment and irrational industrial structure, the gross industrial output of the city is 9.65billion yuan, accounting for 5.26% of the total provincial gross industrial output and ranked No.9 in the province behind the municipalities such as Hefei, Wuhu, Ma’anshan and Anqing.


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In addition, as an important city in the middle and lower reaches of Huai River Basin, Bengbu also suffers a lot from frequent flooding, ecosystem deterioration, and water pollution. Both urban environment and water supply are endangered by the incompletion of urban sewage network and wastewater treatment facilities.

1.1.3 BIEIP Project Organization

Under the leadership of the Municipal Project Leading Group, the Bengbu Municipal World Bank Project Management Office (“the municipal PMO”) has been designated by the municipal government as its representative for the project coordination and management. Consequently, the municipal PMO is at the centre of the project management process. Requests for administrative and technical assistance funds originate with the municipal PMO. Requests for reimbursements of construction costs originate from the Implementing Agencies through the local PMOs for review and approval and then to Anhui Provincial Finance Bureau for review, approval and forwarding to the Bank. The municipal PMO appoints technical assistance (TA) consultants for the project, selects the tendering companies, and upon recommendation of the technical assistance consultants, designates the construction supervision company. The local Project Offices may also designate local construction supervisors. Each project has its own project management office, which represents the project area or the county. At municipal level the provincial Audit Bureau has delegated the audit responsibility to the Municipal Audit Bureau. At municipal level, several agencies are involved at various degrees of responsibilities: Municipal DRC, Municipal Finance Bureau, Construction Commission, Municipal EPB, Municipal Water Resources Bureau (WRB). The French Government provided a grant to the Bengbu Municipal Government for a technical assistance from the French consulting company BURGEAP, to assist the municipal government in project planning and design, and for the preparation of the technical, environmental and financial documentation to be presented to the WB for loan eligibility.

Figure 5: Organization chart of BIEIP

1.1.4 Contributions of World Bank & Other Financing Agencies

Due to the important location in Huai River Basin, the Municipality of Bengbu has also benefited from some other on-going projects financed by World Bank and other financing agencies, including Huai River Pollution Control Project (P047345, World Bank), Huai River Basin Flood Management and Drainage Improvement Project (P098078, World Bank) and Anhui Water Environmental Improvement Project (AWEIP, Japanese loan).


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Huai River Pollution Control Project was approved in March 2001 by World Bank, which mainly aims at the improvement of wastewater collection and treatment in a number of municipalities in Anhui and Shandong Provinces including Bengbu. Its investments in Bengbu includes the construction of 28.5km sewers, 70.4km interceptors, 1.5km pumping mains and 5 pumping stations, most of which are located in Bengbu urban area and Huaishang District. The project is expected to be completed by end of 2007.Huai River Water Resources Commission started the preparation of another major flood management project for potential financing by the Bank in 2005, which is called Huai River Basin Flood Management & Drainage Improvement Project (P098078). The project would aim at the increase of local agricultural productivity and farmers’ incomes by better protecting against floods, the properties and lives of many people living in predominantly rural areas of the Huai River Basin. This would be done through the provision of improved flood control and drainage works and strengthened institutional capability to effectively reduce the severity and impact of flooding and water logging in Anhui, Henan, Jiangsu and Shandong provinces. As an important city in the river basin, the involvement of Bengbu in this project would certainly improve the dialog between the municipality and the basin-wide administration.The Anhui Water Environmental Improvement Project, financed by Japanese loan (JBIC), which aims to reduce polluted water discharged into the Huai River and ensure a stable supply of safe drinking water to Bengbu City, by developing its water supply and sewerage infrastructure. Specifically, the Project consists of five sub-projects, i.e. Yangtaizi WWTP; 134.84km sewage network and pumping stations in Bengbu city; Guobei WWTP, 59.3km sewage network, WTP expansion, 100km water supply network and 110km drainage network in Huaiyuan County; 30km water supply network and 40km drainage network in Wuhe County and water supply & sewage system in Guzhen County. The loan agreement has been signed in May 2007 with the total project cost of 110.6million yuan.The coverage of the above mentioned projects is shown in Figure 5 together with the locations of the proposed BIEIP components. It is shown that the three projects have covered the urban area and the three counties of Bengbu Municipality. However, the Huai River Pollution Control Project and the Anhui Water Environment Improvement Project mainly focus on the improvement of municipal infrastructure, such as sewers, sewage pumping stations, the WWTPs and the WTPs; while the proposed BIEIP will mainly focus on the improvement of local flood control and storm management facilites, such as storm pumping stations, drainage network and river de-silting.


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Note: For AWEIP, there is no exact project location available. The red dots only stand for the rough project location.

Figure 6: Coverage of World Bank and Japanese loan-funded projects in BengbuIn addition, the linkages between the World Bank financed BIEIP and the Japanese Loan funded Anhui Water Environment Improvement Project are analyzed in details in the following table.


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Table 1: Linkages between BIEIP and Anhui Water Environment Improvement Project

AWEIP BIEIP The linkage of BIEIP components with AWEIPSub-project

nameRelated

componentsSub-project

nameRelated

components

Yangtaizi WWTP Yangtaizi WWTP

Urban Drainage System and Storm Pumping Stations

Storm network in the old urban area, HTZ, EDD

and Longzi Lake Dis.

Some sewage network under BIEIP in the old urban area, EDD and Longzi Lake Dis. are connected to the proposed WWTP under AWEIP.

Bengbu Municipal Drainage System Project

East Shengli Rd. sewage pumping

station

Sewage and storm drainage

network in Longzi Lake

Dis.

The wastewater collected by the sewage network under BIEIP in Longzi Dis. will be pumped by the pumping station under AWEIP to Yangtaizi WWTP.

Huangshan Rd. sewage pumping

station Storm & sewage network

scattered in the HTZ

The wastewater collected by the sewage network under BIEIP in the southeast of HTZ will be pumped by the PS under AWEIP to the planned South City WWTP.

Huangshan sewage and

storm drainage network

The sewage network along Bengxi Rd., Youyi Rd., South Changzheng Rd. and South Changqing Rd. under BIEIP is connected with the sewer trunk under AWEIP.

Storm drainage network covering

the whole planning area of Huaishang Dis.

Huaishang Flood Control & Integrated Environment Improvement Project

Sewage network west of

North Daqing Rd.

AWEIP provides the storm drainage network and BIEIP

provides the sewage network for the same area.

Urban Road on the northern bank of Huai

River together with 21 smaller roads and their

associated storm and

sewage network

AWEIP and BIEIP complement each other to cover the infrastructure for

the new developed area along the northern dyke of

Huai River.

Rehabilitation of five canals:

Wangxiaogou, Xiaobengbu Wuxiaojie,

Wuxiaojie No.1 and Wuxiaojie

No.2

Wuxiaojie Storm PS,

Expansion of Xiaobengbu PS,

and Wangxiaogou

PS

The canal rehabilitation under AWEIP provides

support to the PS projects under BIEIP.

Water Supply and Drainage

Network of Wuhe

County

Project location: the Southern

New Urban Area of Wuhe County

Wuhe Flood Control and Ecological

Improvement Project

Mohekou TownTwo different areas of Wuhe

County are covered respectively by AWEIP and

BIEIP.

Guzhen Water

Supply & Sewage System

Water Supply & Sewage System for the Southern Industrial Park of

the County

Guzhen Flood

Control & Ecological

Drainage Network of

Guzhen County

Two different areas of Guzhen County are covered respectively by AWEIP and

BIEIP.


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AWEIP BIEIP The linkage of BIEIP components with AWEIPSub-project

nameRelated

componentsSub-project

nameRelated

components

Improvement Project

Phase II of Guzhen No.2

WTP Wastewater interception

project for the west of Guzhen

The wastewater interception project under BIEIP is just to

prevent the direct wastewater discharge from the west of Guzhen into Hui River to protect the water quality of Hui River, the water source of Guzhen

No.2 WTP.

Huayuan Guobei Water

Environment Project

WTP for Guobei, the new

industrial park and the food

processing park Huaiyuan Flood

Control & Environmen

t Improvement Project

Storm drainage network and roads for the West Food

Processing Park The proposed storm pumping stations under

BIEIP are for the drainage network under BIEIP and

AWEIP.

Storm drainage network of the

township

Storm drainage network and

pumping stations for the

townshipGuobei WWTP (including the wastewater reuse plant)

/

1.2 General Background for Consolidated EA

1.2.1 Classification of Consolidated EA

In accordance with PRC National Regulations and the World Bank Operational Policy 4.01 related to Environmental Assessment, a “Category A - Consolidated EA” is to be prepared for the whole BIEIP Project including flood control, water resource management, wastewater and water supply components. This consolidated EA report will a comprehensive analysis of project targets, specific impacts of the sub-components with their mitigation measures and outlines the dominant socio-economic improvements to the welfare of communities. This report is complemented by:i) Consolidated Resettlement Action Plan (RAP);ii) Consolidated Environmental Management and Monitoring Plan (EMP);iii) EA Summary Report, andiv) Individual EA Reports for each sub-project component.

1.2.2 Preparation of CEA

The Project technical and financial preparation carried out by Chinese local organizations has been supported by international assistance to BIEIP provided by BURGEAP, the Design Review and Advisory Services (DRAS) Consultants to the BIEIP World Bank project management office who is responsible for the overall preparation and coordination of the project.For the 8 sub-projects, Zhongnan Design Institute and Bengbu Municipal Survey & Design Institute were appointed by the project owner (BIEIP PMO) to carry out the feasibility studies and to produce Feasibility Study Reports (FSR). For the environmental assessment documents, the PMO has appointed the North China Municipal Design Institute (NCMDI), a


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Class A certified EA institute based in Tianjin, to prepare all the individual EAs. NCMDI is also appointed to prepare the Chinese Consolidated EA for BIEIP as well as the Environmental Management Plans (one per sub-project). In accordance with the Government Regulation “Environmental Impact Assessment Law” of September 2003, Strengthening Environmental Impact Assessment Management for Construction Projects Loaned by International Finance Organisation” of June 21, 1993 and the World Bank Safeguards Operational Policy, the PMO has requested the DRA Consultants to assist in the preparation of the English consolidated EA, as well as to prepare the English versions of the EMP and of the EA Summary. Various assistances have been provided by DRA consultants since February 2007 to introduce the World Bank Safeguards requirements in the preparation of EIA documentation, including the report framework for individual EIAs and consolidated EA.The present Consolidated EA report is based on individual EA studies carried out for each sub-project of the BIEIP. It has been prepared by SCMDI with the assistance of the DRAS Consultant. According to Chinese regulations, the provincial EPB is responsible for review and approval of four individual EA reports for the four sub-projects with the project cost over 100million RMB (Urban Wastewater and Storm Drainage Project, Longzi Lake Storm Management & Environmental Improvement Project, Huaishang Flood Control, Storm Management and Urban Environmental Infrastructure Improvement Project, and Wuhe County Storm Drainage and Ecological Improvement Project), and the municipal EPB is responsible for review and approval of the individual EA reports for the other four sub-project with the project cost less than 100million RMB (Tianhe Flood Control Project, Xijiagou Canal Flood Management and Environmental Improvement Project, Guzhen County Storm Drainage and Ecological Improvement Project and Huaiyuan County Storm Drainage and Ecological Improvement Project).

1.3 Coverage of this Consolidated EAThe Consolidated EA is being prepared strictly in accordance with National and Provincial laws, codes and criteria relating to environmental protection. It satisfies the Chinese EA system, whilst at the same time gives full attention to the requirements of the World Bank’s environmental safeguards, and more precisely those of the Operational Policy 4.01 for EA.The CEA is based on the collection and use of existing materials (secondary data) as well as data resulting from field investigations carried out during the preparation of Individual EAs for each sub-project. The CEA intends to provide a comprehensive and synthesized view of environmental implications resulting from the implementation of the 8 sub-projects.

1.4 Layout of the Consolidated EA ReportThe following chapters of the CEA report present the detailed analyses conducted as part of the overall Environmental Assessment and follows closely the report format recommended in WB OP 4.01/Appendix B:• Chapter 2 "Institutional and Regulatory Framework" discusses the policy, legal,

institutional and administrative framework within which the EA has been conducted describing both the environmental requirements of the PRC and of the World Bank;

• Chapter 3 "Environmental Policy Framework" describes the key environmental issues observed at basin level and in the project area, with on-going sector policies;

• Chapter 4 "Environmental Baseline Situation" describes the background environmental and social conditions (physical, biological and socio-economic


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conditions) within which the project components are developed, both on a regional scale and on a site specific level;

• Chapter 5 "Project Description" provides a summary technical presentation of the proposed subcomponents along with their implementation schedule and costs;

• Chapter 6 "Environmental Impacts Assessment" provides prediction and assessment of likely environmental, economic and social impacts, both positive and negative, for the proposed BIEIP project;

• Chapter 7 "Mitigation Measures" describes the recommended mitigation measures during project construction and operation;

• Chapter 8 "Alternatives Analysis" compares feasible alternatives to the proposed project components, including the “zero-project” scenario;

• Chapter 9 "Public Consultation & Information Disclosure" describes the activities and results of Public Consultation and information disclosure;

• Chapter 10 "Summary of EMPs" provides information on the Environmental Management Plans covering mitigation measures, monitoring and institutional strengthening as well as activities and budget developed for each concerned district/county;

• Chapter 11 "Resettlement and Social Impacts" summarizes the main conclusions of individual RAPs for BIEIP components and the consolidated social assessment report for BIEIP;

• Chapter 12 "Conclusions and Recommendations" provides major findings of the study, including short and long terms benefits of the Project.


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2 Institutional & Regulatory Framework

2.1 Environmental Institutions and RolesThe State Environmental Protection Administration (SEPA): Since March 1998, SEPA has become a ministerial-level authority directly under the State Council responsible for the environmental protection in China. SEPA is responsible for the drafting and interpretation of pertinent standards, laws and regulations and guidelines, as well as the supervision and inspection of their implementation. As stipulated by the “Provision for Management of Environmental Protection in Construction Projects”, since the year 2003, Classd reviews and approvals of construction project EIA documents have been exercised by the Environmental Protection Bureaus (EPBs) at all levels.For projects invested with budget funds from the central government and designated as budgetary investment projects, projects dedicated with special funds, nuclear projects, top-confidential projects and project of military industry, as well as cross-region or cross-river basins, the EIA documentation should be reviewed and approved by SEPA. For projects only requiring EIA reporting sheet and EI registration table, the EIA documentation will be reviewed and approved, under the authority of SEPA, by the EPB institutions of the provinces, autonomous regions or municipalities where the construction projects are to be implemented.The Provincial Environmental Protection Bureau (Provincial EPB): The Provincial Environmental Protection Bureau (EPB) is responsible for environmental planning, monitoring and regulation. The principal duties of the Provincial Environmental Protection Bureau are to frame local legislation and standards, to supervise and administer the control of industrial pollution, to set tariffs for effluents, to study and monitor pollution and to plan for pollution control and environmental management. The EPB manage revolving loan funds (funded by a major portion of polluter fines for non-standard discharges).The Municipal Environmental Protection Bureau (Municipal EPB): The main responsibilities of the municipal EPB include: Implementing the national and provincial policies, laws, rules and standards on

environment protection; Making plans on municipal environment protection: participating in the

establishment of municipal economic and social development middle-term and long-term plans; managing the work of municipal environmental statistic and information; publishing the report of municipal environment status;

Environment protection of atmosphere, water body, soil in the city: supervising the prevention and treatment of polluters such as wastewater, waste gas, noise, solid wastes, poisonous chemical products, nuclear radiation, radiant products and motor vehicles; investigating and treating the environment pollution accidents and mitigating the pollution plumes;

Approving the environmental impact assessment report of construction project; supervising the disposal of municipal pollution sources;

Supervising and managing the construction and protection of municipal natural ecologic environment; supervising the protection of biodiversity, wild animals and plants and wetland;

Communication and education on environment protection; popularizing the scientific and law knowledge of environment.


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Bengbu Municipal Environmental Protection Bureau exerts leadership on the EPBs of the district/counties involved in BIEIP. According to the Chinese regulations, the individual EIAs for the sub-projects under BIEIP will be reviewed and approved by Anhui Provincial EPB and Bengbu Municipal EPB according to their different cost estimation.

2.2 Applicable Laws & Regulations

2.2.1 National Laws & Regulations

Since 2002, the EIA process in China is under the Environmental Impact Assessment Law (October 2002). Several other national laws and regulations provide a legal background for EIA: Environmental Protection Law of the People’s Republic of China, Dec. 1989; Law of Water Pollution Control of the People’s Republic of China, May 1996; Law of Air Pollution Control of the People’s Republic of China, April 2000; Law of Environmental Noise Pollution Control of the People’s Republic of China, Oct.

1996; Law of Water of the People’s Republic of China, Oct. 2002; Law of Cleaner Production Promotion of the People’s Republic of China, June 2002; Law of Water and Soil Conservation of the People’s Republic of China, June 1991; Law of Solid Waste Pollution Control of the People’s Republic of China, April 2005; Detailed Rules for Implementation of “Law of Water Pollution Control of the People’s

Republic of China”, No. 284 order by the State Council, March 2003; Regulation of River Administration of the People’s Republic of China, June 1988; Related Regulations on the Management of Construction Project within River

Administration Scope, April 1992; Regulation on the Environmental Protection Management of Construction Projects,

State Council, 1986; Regulation on Pollution Prevention Administration for Drinking Water Source

Protection Areas, SEPA, July 1989; Protection Program for National Ecological Environment, GUOFA[2000]No.38, State

Council, Nov.2000; Environmental Protection Management for Construction Projects, State Council,

November 1998; Regulations on the Certificate for the EIA of Construction Projects (1989 SEPA); Categorized Checklist for Environmental Protection Management of Projects under

Construction, [2003] File No. 14, SEPA; Comments on Further Strengthening of Environmental Protection Management of

Projects, HUANFA [2001] File No. 19, SEPA; Notice to Strengthen the Ecological Protection of Wetland, HUANRAN[1994] No.184,

SEPA, March 1997; Notice to Strengthening EIA Management of Projects Financed with Loans from

International Financing Institutions, HUANJIAN [1993] File No. 324, SEPA; Notice on the Strengthening of Water Saving and Water Pollution Prevention for

Urban Water Supply by the State Council, GUOFA[2000] No.36, Nov. 2000;RIg00002 A17978/CIGZ070287

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Notice to Issuance of Total Pollutant Effluent/Emission Amount Control Plans in the 10th Five-year Plan Period, YUFUFA [2001] File No. 556;

Notice on the Strengthening of EIAs for Development Zones, HUANFA [2002] File No. 174, SEPA;

Notice on the Further Standardization of Environmental Impact Assessment, HUANFA[2002] No.88, July 2002, SEPA;

Checklist of Hazardous Wastes; Methods for Environmental Protection Acceptance of Projects at Completion, [2001]

File No. 13, SEPA; Technical Directives for Environmental Impact Assessment, General (HJ/T 2.1-93),

SEPA; Technical Directives for Environmental Impact Assessment, Air Environment (HJ/T

2.2-93), SEPA; Technical Directives for Environmental Impact Assessment, Surface Water

Environment (HJ/T 2.3-93), SEPA; Technical Directives for Environmental Impact Assessment, Noise Environment (HJ/T

2.4-1995), SEPA; Technical Directives for Environmental Impact Assessment, Non-pollution, Ecological

Impacts (HJ/T 19-1997), SEPA; Technical Directives for Environmental Impact Assessment, Water Conservancy and

Hydropower Projects (HJ/T88-2003); Technical Directives for Environmental Risk Assessment for Construction Projects

(HJ/T169-2004), SEPA; Decision of the State Council on Implementing Scientific Development Concept and

Strengthening Environmental Protection, GUOFA[2005]No.39, Dec. 2005; Draft Regulation on Public Participation Methods for Environmental Impact

Assessment; 18 March 2006, SEPA;

2.2.2 Local Regulations

There are also some local (Provincial & River Basin-wide) regulations applicable to the environmental impact assessment for BIEIP: Comments on the Implementation of “Decision of the State Council on

Implementing Scientific Development Concept and Strengthening Environmental Protection” by Anhui Provincial Government;

Environmental Rules for Urban Drinking Water Sources in Anhui Province Implementation Method for “Regulation of River Administration of the People’s

Republic of China”, Oct. 1991; Rules on the Water Pollution Control of Huai River Basin in Anhui Province, Sep.

1993; Provisional Regulations on Water Pollution Control of Huai River Basin, No.183 order

by the State Council, Aug.1995; Decision of Anhui Provincial Government on Practically Strengthening the

Environmental Protection Work, WANZHENG (1997) No. 28, by Anhui Provincial Government;


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Rules on the Protection of Agricultural Ecological Environment in Anhui Province, Aug. 1999;

Some Comments on Further Improving the Quality of Environmental Protection Assessment, HUANJIAN (2002) No.46, Anhui Provincial EPB, April 2002;

2.3 Environmental Quality StandardsAll applicable standards are detailed in Appendix 2 of this report. Only references and general issues are provided in this section.

2.3.1 Surface Water Quality Classification and Standards

National standards for surface water quality are detailed in regulation GB3838-1983, successively revised in 1988 (GB3838-1988) and in 2002 (GB3838-2002). Surface water bodies are ranked into five quality classes according to their utilization purposes and subsequent protection objectives, as defined in a regional zone classification issued by the Municipal EPB: Class I is mainly applicable to spring water and to national nature reserves. Class II is mainly applicable to first class of protected areas for main sources of

drinking water, for the protection areas of rare fish species, and for spawning grounds for fish and shrimp.

Class III is mainly applicable to second class of protected areas for main sources of drinking water, and to protected areas for the common fish and for swimming areas.

Class IV is mainly applicable to the water for industrial use and entertainment which has no direct contact with human body.

Class V is mainly applicable to water bodies for agricultural use and landscape requirement.

Chemical criteria applicable to these 5 classes are detailed in Appendix 2.

2.3.2 Other Water Quality Standards

Standard for drinking water is provided by regulation GJ3020-1993; Groundwater Quality Standards GB/T14848-1993.

2.3.3 Standards for Effluents from Industry and from WWTP

Key standards include: Comprehensive Standard for Wastewater Discharge (GB8978 – 1996); Quality of Sewage Water Discharged into Urban Sewers (CJ3082－1999); Standard for Pollutants Discharged from Urban and Town Sewage Treatment Plants

(GB18918－2002); GB 4284-1984 is used as the control standard for pollutants in sludge for

agricultural use.

2.3.4 Standards for Solid Waste Management

Key standards include:RIg00002 A17978/CIGZ070287

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Domestic waste landfill pollution control standards (GB16889-1997); Domestic waste landfill environment monitoring technique standards (CJ/T3037-95); Urban Municipal Solid Waste Technical Standard 1989, Ministry of Construction; Ordinance of Urban Appearance and Environmental Sanitation Management,

adopted by the State Council, August 1992; The Technical Policies for Municipal Solid Waste Treatment and Pollution Prevention,

promulgated by MOC, MST and SEPA, May 29, 2000.

2.3.5 Other Regulations & Standards

Several other standards related to air quality and noise should apply either during the construction or operation phases of LMC-2, including: Environmental Air Quality Standard (GB3095—1996) with regulation GB3095-96 for

fluoride and standard for maximum concentration of chlorine from Industry Designing Sanitary Standards (TJ36-1979).

Standards for the Protection of Crops (GB9173—88) set the maximum concentration of some air pollutants in order to preserve the safe consumption of crops.

Class II standard of Urban Area Environmental Noise Standards GB3096-1995, which applies to residential, commercial and industrial mixed area.

Urban Area Environmental Vibration Standards GB10070-88, which apply to mixed area and commercial centre area, day 75dB(A), night 72dB(A).

Comprehensive Emission Standards of Air Pollutant (GB16297-1996) for exhaust gas;

Limiting Values for Construction Area (GB12523—90) for noise from construction activities.

2.4 World Bank SafeguardsFor any project processed with the participation of an International Funding Agency, in addition to the fulfillment of national requirements, the proponent must also satisfy the requirements of the funding organization. The World Bank requires environmental assessment (EA) of projects proposed for financing to ensure that they are designed in an environmentally sound and sustainable manner, and that the environmental and social policies of the WB are satisfied. These requirements are detailed in the following reference safeguards:Environmental Issues Safeguards: Operational Policy 4.01, Environmental Assessment, January 1999 (including Annex

A, B and C, dated January 1999) Operational Policy 4.04, Natural Habitats, June 2001 Operational Policy 4.36, Forests, September 1993 (including Annex A, dated March

1993) Operational policy 4.09, Pest Management, December 1998 Operational Policy 4.37, Safety of Dams, October 2001

Social & Political Issues Safeguards Operational Policy 4.12, Involuntary Resettlement, December 2001 Operational Directive 4.20, Indigenous Peoples, September 1991


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Operational Policy 4.11, Cultural Property, August 1999 Operational Policy 7.50, Projects on International Waterways, June 2001 Operational Policy 7.60, Projects in Disputed Areas, June 2001 Bank Policy 15.50, related to Information Disclosure

For the present BIEIP project, the following safeguards will be triggered: Operational Policy 4.01, Environmental Assessment Operational Policy 4.12, Involuntary Resettlement, Bank Policy 15.50, related to Information Disclosure.


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3 Environmental Policy Framework

3.1 Main Environmental Issues and Strategies in Huai River Basin

3.1.1 Water Pollution

The water pollution of Huai River Basin started in the late 1970’s and exacerbated in 1980’s. The large-scale water pollution accidents took place more and more frequently in Huai River Basin in recent decades, respectively in 1989, 1992, 1994 and 1995.Thereafter, relevant pollution control strategies and policies have been successively issued by the State Council and local governments to alleviate the conditions, such as the “Provisional Regulations on Water Pollution Control of Huai River Basin” (Aug. 8th 1995, the first river basin water pollution control regulation in China), the “Water Pollution Control Plan and the Ninth-five-year plan of Huai River Basin” (Jun. 29th 1996) and the “Tenth-five-year Plan for Water Pollution Control of Huai River Basin”. The water pollution targets for the whole Huai River Basin are divided into two phases: the first is to make the discharge from all the industrial polluters in the basin up to standard and to reduce the COD discharge from 1.5million tons of 1993 to 890,000 tons by the end of 1997; and the second is to construct 52 municipal WWTPs for the whole basin and to further reduce the COD discharge to 368,000 tons so as to improve the water quality of the main stream of Huai River, upstream of Yi River and key drinking water sources up to the Class III standard and that of other rivers up to the Class IV standard.With the great efforts put in Huai River Basin (including the compulsory shutdown of hundreds of heavily polluting small industries and the administration over the key industrial polluters in the basin), significant accomplishments have been made over the last 12 years. Especially during the “Ninth-five-year” period (1996-2000), the key pollutant, COD discharge, has dropped from the 1.5million tons of 1995 to 1.167million tons of 1998 and 0.94million tons of 2000 (respectively by 22.2% and 36.9%); in 2000, the water quality compliant rate at the provincial boundary has increased by 8.8% compared with the 1995 level; and there is significant decrease of major water pollution accidents in the basin. However, after 2001, with the completion of the first phase Huai River pollution control action, the pollutant discharge into the river increased again in recent years. In 2003, the COD discharged into the river was up to 1.23million tons, 30% beyond the 2000 level. The water quality compliant rate at the provincial boundary showed a gradually decreasing trend, from the 29.1% of 2000 to the 25.8% of 2001 and the 24.6% of 2002. Even with the dilution of the biggest flood in 50 years, the overall water quality compliant rate of 2003 was only 38.4%. 82 of the key controlled cross sections are classified as Class V or worse than Class V, and about 82% of the cross sections haven’t reached the predefined target. The existing problems mainly include: 1. The incompliant pollution discharge by key industrial polluters remains the major

cause for the pollution exacerbation. By the end of 2003, only 51.7% of the industrial outfalls could meet the discharge requirements. And the industrial pollution contributes to about 70% of the total COD discharge in the river basin.

2. The construction of many planned municipal WWTPs is behind schedule, and the normal operation of constructed WWTPs could not be ensured.

3. The agricultural non-point pollution hasn’t been effectively controlled, so that the NH3-N concentration is far beyond the standard requirement.


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4. The ecological water use has been seriously taken into consideration in the exploitation and allocation of water resource. Therefore, during the dry season, some rivers are dried up, and the self-purification capacity of the water bodies will be affected.

In view of the above mentioned problems, in Oct. 2005, SEPA has issued the new water pollution control targets for Huai River Basin with the focus on the control and treatment of industrial and domestic wastewater from the urban area. The targets are further divided into three phases: a) By the end of 2005, the completion and operation rate of key pollution control projects should be no lower than 60%; b) By the end of 2007, 90% of the key pollution control projects should be put into operation, and the treatment rate of domestic wastewater from the municipalities in Shandong, Jiangsu Provinces, etc. should at least reach 70%; c) By the end of 2010, the water quality of the main stream of Huai River should reach the Class III target, and the water quality of the major tributaries of Huai River should meet the Class IV or Class V requirements.

3.1.2 Water Scarcity

Due to the spatio-temporal imbalance of water resource distribution, the Huai River Basin is an area facing the problem of severe water shortage with the per-capita water resource amount of 488m3, which is lower than 1/4 of the nationally average level. According to the “Water Resource Development ’Ninth-five-year’ plan for the Huai River Plan”, with the construction of proposed water supply projects, by 2000 for the normal year, the water supply of the Huai River Basin is basically sufficient; However, for the moderately dry year, there is still a gap of 8.38billion m3 water demand in the Huai River Basin, which means 10% water deficiency rate; and for the very dry year, the gap of water demand would be 24.27billion m3, which means 26% water demand deficiency. In 95% of the very dry years, the guarantee rate of agricultural irrigation water supply would not be reached. In such years, the adopted strategies are to minimize the agricultural water use, to save other water uses, and to properly increase he groundwater use for the area north of the Huai River (Wangjiaba~Bengbu) and the area west of the Nansi Lake. In addition to the optimization of water resource management in the basin, the cross-basin water transfer is a possible solution to mitigate the water supply shortage of the Huai River Basin in view of its vicinity to the Yellow River and the Yangtze River. By 2010, it is expected that the water shortage of the Huai River Basin would still be of water resource type. However, the contruction of the eastern and middle sections of “South-north water transfer project” and the cross-basin water transfer project of Anhui Province will significantly alleviate the water shortage in Huai River Basin, so that in the normal year, the water supply will be generally sufficient. At the same time, the area north of the Huai River upstream of Wangjiaba, the area between Wangjiaba and Bengbu, and the eastern area of Nansi Lake will remain a water deficiency rate beyond 20%. For these areas, it is proposed to strictly control the development of the industries with high water consumption, promote the water conservancy, and properly increase the cross-basin water transfer and the utilization of sea water.

3.2 Bengbu Municipal Environmental Quality Objectives

3.2.1 Bengbu Municipal Urban Short-term Construction Plan

This short-term plan is prepared for the Bengbu urban area, the Tushan Mount Scenic Area and part of the Mohekou Industrial Park, covering a total area of 680km2 for the horizon of 2010.


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3.2.1.1 General ObjectivesThe following objectives are expected to be achieved by 2010: Increase 140km new roads, and the per-capita road area reaches 10.2m2; The per-capita public greening area is about 7m2, and the greening coverage rate of

the constructed area reaches 30.3%; The urban water supply capacity is up to 560000m3/d, the per-capita water

consumption is 220l/d, and the coverage rate of water supply service is beyond 99%; The urban centralized wastewater treatment capacity reaches 275000m3/d, the

centralized wastewater treatment rate is 73.3% and the harmless treatment rate of solid waste reaches 90%;

The water quality compliant rate of rivers and lakes is over 70%, and the water quality compliant rate of urban water supply source is beyond 95%;

The flood control capability of the North Huai River dyke and the urban area is up to the one in 100 years standard.

3.2.1.2 Relocation of Industries and Construction of Industrial ParksIn order to adapt to the overall development master plan, it is planned to gradually move some existing polluting industries from the old urban area and the suburban area into the new industrial parks. Movement and relocation of industriesThe existing industries planned to be moved and relocated include Anhui Global Pharmaceutical Company, People Printing Plant, Bengbu Tiancheng Co. Ltd., the cement plant, the cement product plant, Chemical Mechanical Manufacture Company, Longhua Machines Plant, the glass plant, Xinfeng Flour Plant, the electronic optical material plant, Bayi Chemical Co. Ltd., Hailuo Cement Company, Xinmin Glass Co. Ltd., etc. Newly increased industrial land useThe newly increased industrial parks mainly include the West City Industrial Park & the High Tech Zone (546ha, mainly for the industries of automobile parts, electronic information, biochemical and new materials), Bengbu Industrial Park in Huaishang District (451ha, mainly for the industries of mechanical manufacture, automobile fittings, textile & garments, and food processing), the Longzihu Glass Industrial Park & the Changhuai Industrial Park (158ha, mainly for glass and glass further processing, cement industry and metallurgy industry), and the Jiangqiao Logistics Processing Zone in Bengshan District and Xincheng District (115ha, mainly for electronic information and urban industries).

3.2.1.3 Environmental Protection Plan Water— By 2010, the water quality of the main Huai River should be compliant with

the standard requirements above Class III, and that of the tributaries should be compliant with the standard requirements above Class IV. The treatment rate of industrial wastewater should be 100% and the treatment rate of domestic wastewater should reach 73%;

Air— The air pollution index for the urban area should be controlled within the Class II ambient air standard, the yearly average of TSP in the air should be no more than 0.2mg/m3, the yearly average of SO2 concentration should be within 0.02mg/m3, and the yearly average of NO2 should be lower than 0.025mg/m3. The treatment rate of industrial waste gas should be 100%, and the treatment rate of vehicle exhaust gas should be 80%;


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Noise— The ambient noise of the urban area should be controlled within 56dB, the noise of the urban traffic trunks should be within 68dB, and the compliant rate of the ambient noise in the urban area should reach 50%;

Solid waste— Almost all the solid waste should be collected and sorted, the harmless treatment rate of solid waste should reach 90%; The night soil treatment should be integrated into the urban wastewater treatment system. 100% of the urban domestic solid waste should be containerized for collection. The treatment of hazardous waste should be strengthened, and Zero-discharge of hazardous waste should be ensured.

3.2.2 Bengbu Municipal Wastewater & Storm Drainage Master Plan

As an old industrial city, the drainage system of Bengbu Municipality is constructed and connected by catchment and by phase.

3.2.2.1 Bengbu Municipal Wastewater Drainage Master PlanAccording to the wastewater drainage master plan, it is projected that the wastewater generation of Bengbu Municipality will respectively reach 494,100m3/d and 728,300m3/d by 2010 and 2020.Table 2: Bengbu Municipality Estimated Wastewater Amount（10,000 m3/d）

Item

Current Situation 2010 2020

South

of Huai

River

North

of Huai

RiverTotal

South

of Huai

River

North

of Huai

RiverTotal

South

of Huai

River

North

of Huai

RiverTotal

Planned

Wastewater

Amount

31.1 0.45 31.55 43.65 5.76 49.41 61.31 11.52 72.83

Wastewater

Treatment

Percentage

32.2 0 31.7 74.5 86.8 75.9 89.7 86.8 89.3

Wastewater

Treatment

Capacity

10 0 10 32.5 5 37.5 55 10 65

Bengbu urban area is proposed to be divided into four wastewater catchments as shown in Figure 7, which are respectively served by four municipal WWTPs. The catchment division and the related information are detailed in Table 3.


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Figure 7: Overview of Bengbu Urban Wastewater and Storm Drainage Plan


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Table 3: Planned Wastewater Drainage System

Name of Wastewater Subcatchme

nt

Type of Drainag

e System

Planned Catchment

Scope

Served Area (ha)

Name of Corresponding WWTP

Treatment

Capacity (m3/d)

Discharge Outlet

Xijiagou Wastewater Catchment

Mixture of

Combined &

Separate systems

East of Heihushan Rd.; west of Laohu

Mountain-Hangxing Road-Fenyong Street-

Shengping Street; north of Yanshan Rd.; south of Huai

River

2025

Xijiagou WWTP (No.1

WWTP, in operation)

Phase 1: 100,000;

Phase 2: 100,000

Xijiagou Canal

and then Huai River

Yangtaizi Wastewater Catchment

Mixture of

Combined &

Separate systems

East of Laohu Mount-Hangxing Rd-Fenyong St-Shengping St; west of Longzi Lake, South of Huai River and North of No.5 Huochang Rd

East of Longzi Lake, west of Zhuizi Mount

4251

Yangtaizi WWTP (No.2

WWTP, in design)

Phase 1: 100,000;

Phase 2: 100,000

Baojiagou Canal

and then Huai River

South City Wastewater Catchment

Separate system

Baligou Subcatchment, West Yanshan Subcatchment,

and East Yanshan Subcatchment

2482

South City WWTP (No.4

WWTP, under

planning, to be

completed by 2012)

155000Huai River

Huaishang Wastewater

Separate The whole Huaishang District

1950 Huaishang WWTP (No.3

Phase 1: Huai


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Catchment system

including Xiaobengbu area, Wuxiaojie area, the middle area and North River Industrial Park

WWTP, under

construction, Phase 1 to

be completed

by Jun.2008)

25000;

Phase 2: 50000;

Phase 3: 80000

River

3.2.2.2 Bengbu Municipal Storm Drainage Master Plan

Bengbu urban area is divided into six storm drainage areas according to the receiving water body and the drainage approach, which include the South River Pumping-drainage Area, Longzi Lake Drainage Area, Xijiagou Drainage Area, Baligou Drainage Area, Baojiagou Drainage Area and North River Drainage Area. These drainage areas are further divided into 27 drainage systems in urban planning area according to the topographic characters. The total area of storm water catchments included in the urban drainage system is up to 175km2, and the accumulated design flow is 775m3/s. The storm water not included in the urban drainage system is discharged along the existing ditches and canals. See for details.

Table 4: Planning of Stormwater Drainage Catchments in Bengbu Urban Area

No.Name of

Drainage Area

Catchment Area (km2) Accumulated

Design

Flow（m3/s）Drainage

Approach

Receiving Water

Body Total Area Planned

Area

1

South River

Pumpingl-

drainage Area

20.9 20.9 119.12

Pumped in the

flooding

season

Huai River,

Xijiagou Canal

2Longzi Lake Drainage

Area140 48.76 256.5 Free Flow Longzi Lake

3Xijiagou Drainage

Area49.6 24.49 132.5 Free Flow Xijiagou Canal

4Baligou Drainage

Area23 11.24 81.6 Free Flow Baligou Canal

5Baojiagou Drainage

Area35.4 12.26 54.6 Free Flow Baojiagou Ditch

6 North River Drainage

Area

45.7 25.74 130.4 Pumped in the

flooding

Huai River


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season

3.2.3 Bengbu Municipal “Eleventh-five-year” Environmental Protection Objectives

The Bengbu Eleventh-five-year Environmental Protection Master Plan is prepared for the time horizon of 2010. The whole Bengbu Municipality is covered by this plan. The major task of the “Eleventh five-year” environmental protection is to control the deterioration of water environment and to further reduce the total pollutant discharge of industrial wastewater, domestic wastewater and agricultural non-point pollution. The detailed targets are summarized as follows:

Water

- Ensure the up-to-standard water quality of drinking water sources: Strengthen the construction of drinking water source conservation areas, such as the area for the No.3 WTP, and improve the water quality compliant rate of the centralized drinking water sources above 95%;

- Accelerate the construction of wastewater treatment facilities – By 2010, the newly increased wastewater treatment capacity should reach 290,000m3/d, which will made the overall treatment capacity up to 545,000m3/d and the treatment rate up to 70%.The sewage from the new planned area should be collected and transferred to the WWTP. And the treated effluent of the WWTPs should comply with the Class IA standard before discharging into the Class III surface water bodies (according to the classification of GB3838-2002). The water quality of the main Huai River should at least meet the Class III standard while the primary tributaries should at least meet the Class IV standard;

- Strengthen the control of industrial polluters—Implement strict inspection and administration regulation over the polluting industries, such as chemical, brewery, texitile & dyeing, tannery, plating, paper-making and food processing; Implement the overall on-line monitoring system for the new urban WWTPs, solid waste incinerators and key industrial polluters to effectively prevent the secrete discharge; Implement the mass load control system for pollutant discharge, the pollutant discharge permission system and the reduction plan for the total discharge of major pollutants;

- Control the pollution from the poultry and stockbreeding industries;

- Comprehensively control the agricultural non-point pollution by strictly control the use of pesticides and fertilizers.

Air

- Optimize the energy structure and develop clean energy;


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- Strengthen the treatment of industrial pollution to realize the up-to-standard emission of polluting sources;

- Strengthen the administration over the exhaust gas emission of vehicles;

- Focus on the control over the domestic polluting sources and the flying dust from traffic and construction activities.

Noise

- Control the regional environmental noise to improve the coverage rate of noise up-to-standard area up to 60% as soon as possible;

- Control the traffic noise—Control the average value of the noise from the traffic trunks within 70dB;

- Control the noise of construction activities;

- Take proper measure to cope with the fixed noise sources.

Solid waste

- Accelerate the construction of solid waste treatment & disposal projects—six new solid waste treatment plants (sites) and one medical waste disposal centre are planned for the horizon of 2010. By 2010, it is expected that the harmless treatment rate of the domestic solid waste in Bengbu Municipality will reach 60%, and the centralized treatment rate of hazardous waste will reach 100%;

- Strengthen the comprehensive recycling and utilization of solid waste—By 2010, the comprehensive utilization rate of industrial solid waste should reach 85%;

- Strengthen the management of hazardous waste— A 5t/d medical waste disposal centre will be constructed. By 2010, there should be no discharge of hazardous waste;

- Complete the collection and transportation system for construction waste and solid waste from water bodies.

Ecological Environment

- Enhance the ecological construction—By 2010, improve the forest coverage rate in the municipality to 18% and the greening rate of constructed area to 40%, and increase the per-capita public greening area in the urban area up to 9m2;

- Well protect the ecological functional zones—By 2010, the area of land natural conservation zones reaches 12% of the total area;

- Implement compulsory protection for resource development.

Circular Economy

- Construct ecological industrial parks— Focus on the construction of 9 ecological industrial parks. By 2007 the small- and middle-scale polluting industries should be


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relocated, and by 2010 all the polluting industries should be moved into the industrial parks;

- Develop the ecological agricultural parks;

- Construct the resource circular economy by establishing the recycling and reuse system for urban domestic solid waste, special used materials and urban treated wastewater together with the regional industrial hazardous waste incineration centre, the used batteries and fluorescent lamp tube disposal centre, the medical waste disposal centre, etc;

In order to achieve all the above targets by 2010, totally 80 environmental protection projects have also been identified in the master plan, such as:

- Drinking water source pollution control project for three counties;

- Wetland ecological environmental construction project for the groundwater conservation area in Huaishang District;

- Water quality protection project for Qian River as strategic urban water supply source;

- Longzi Lake integrated rehabilitation project

- Zhangongshan Pond integrated rehabilitation project

- Wastewater treatment projects for some key polluter of Bengbu Municipality;

- Relocation of some key polluter of Bengbu;

- Wastewater treatment plants for Bengbu urban area and three counties;

- Clean energy project;

- Waste gas treatment for some key polluters of Bengbu Municipality;

- Bengbu domestic sanitary solid waste landfill site (Phase I & II);

- Solid waste disposal site for Huaishang District and three counties

- Medical solid waste disposal centre of Bengbu Municipality;

- Sludge disposal project of Bengbu wastewater treatment plants;

- Flood control and ecological environment improvement project for the southern and northern banks of Huai River;

- Environmental monitoring capability building;

- Construction of Bengbu Environmental Information System; etc.


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- Many of these projects are being implemented with the government investment. And some of them will be included in BIEIP using the World Bank financing, which include:

- Longzi Lake integrated rehabilitation project;

- Flood control and ecological environment improvement project for the northern banks of Huai River;

- Environmental monitoring capability building; etc.

3.2.4 Bengbu Municipality Eleventh-five-year Plan for Water Resource Development

3.2.4.1 General Objectives

Complete the flood control & storm drainage system --The treatment of such primary mainstream & tributary as Huai river, Guo river, Beifei river & Xie river should be enhance to improve the integrated flood control & storm drainage ability. Meanwhile, to improve the storm drainage capacity and reinforce the flood control & anti- drought emergency system, flood control pump station in each depression of the lager five tributaries as Tianhe,Longzi river, Qian river ,Xie river & downsream Beifei River should be discussed to build, while the flood control pump station improvement projects of Benifei River dike ,Jingshan Lake & Mohekou depression as well as storm drainage ditch treatment projects also need to be implemented

Establish the secure and reliable water supply security system -----Focusing on the current water resources and making full use of the potential of water saving and floods to ensure urban water supply safety, then carrying on the construction to protect urban drink water sources like Tianhe and Qianhe. Finally, the water resource distribution ability should also be enhance to improve the rural drink water quality by carrying on drink water safety project in rural area.

Establish sustainable and effective water environmental protection system ------Sticking to combining the engineering measures with non-engineering measures to tap, utilize and protect water resources. Also the soil and water conservation should be activated and the wet land should be taped and protected intentionally, reasonably and step by step.

Establish stable and sound water resource development system in rural area ------To guarantee the agricultural development, stable society and income rise in rural area, the farmland and water resources construction should be continuously strengthened and the drainage situation should be improved.


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Establish normalized and effective water management and service system ------The water information collection system and decision-making assistant system should be set up to further improve the emergency schema for flood control and anti-drought.

3.2.4.2 Targets of Water Resource Development

Flood control and storm drainage ------Up to the year 2010, the flood control standard for protection area like Huaibei dike and Bengbu urban area will reach 1-in-100 year flood while the flood control standard of major tributaries like Hui river. Xie river, Qian river, Tuo river, downstream Beifei river etc will almost rise to 1-in-20 year flood thus the flood control standard for Bengbu city, Huaiyuan county, Guzhen county and Wuhe county will fundamentally meet the national requirement. Besides the flood disaster warning system ought to be established and The depression storm drainage projects in key region should be built based on 1-in-10 flood to fully upClass the drainage capacity.

Drink water safety----The water sources protection project in urban area will be radically finished in 2010.

Country water resources ----During the “the eleventh 5-year plan”, the irrigative land equipping, water-saving rehabilitation and farming land storm drainage system construction will be activated and the surface and ground water will be attributed scientifically and rationally. By 2010, the new drainage area will be 500,000 mu while the improved will be 500,000mu.The standard farming land reclaim will attain to 800,000mu with common storm drainage standard of 1 in 5 ~10 flood. To the year 2020, The farming land reclaim will arrive at 2 million mu with a drainage standard of 1-in-10 year flood.

Water resources protection and ecological treatment ------To the year 2010, the water quality up-to-standard rate for the primary rivers and lakes will get to above 70% and the water sources for urban area will go up to above 95%.The treatment projects for Longzi lake and Xijiagou should be launched to ensure the water quality of Longzi lake and Zhanggongshan pond basically meet the water requirement for landscape. To the year 2020, the water quality up-to-standard rate for the primary rivers and lakes will reach above 90% and the water sources for urban area will go to above 98%.

3.2.5 Construction Plan of Bengbu Ecological City


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In order to construct Bengbu Municipality into a ecological city, the following targets have been developed respectively of the short term (2010), intermediate term (2015) and long term (2020) horizons.

Water

- Short term: By 2010, the up-to-standard rate in water functional region is 75%,industrial wastewater treatment rate is 98%，sewage treatment rate is 70%。

- Intermediate term: By 2015, the up-to-standard rate in water functional region is 90%,industrial wastewater treatment rate is 99% ， sewage treatment rate is 80%。

- Long term: By 2020, the up-to-standard rate in water functional region is 100%,industrial wastewater treatment rate is 100% ， sewage treatment rate is 90%。

Air

- Short term: By 2010, the urban air environment should be maintained at the same level in 2005 and all the functional regions meet the air standard.

- Intermediate term: By 2015, the urban air environment quality can be expected at the favorable level with an industrial exhaust treatment rate of 100%.

- Long term: By 2020, the urban air environment quality can be expected to increase base on the favorable level with an industrial exhaust treatment rate of 100%.

Solid waste

- Short term: By 2010, the integrated utilization rate of urban industrial solid waste will be up to 85% compared with domestic waste harmless dispose of 100%, and utilization of more than 10%.

- Intermediate term: By 2015, the integrated utilization rate of urban industrial solid waste will be up to 100% compared with domestic waste harmless dispose of 100%, classified collection of more than 30% and utilization of more than 15%.

- Long term: By 2020, the integrated utilization rate of urban industrial solid waste will be up to 100% compared with domestic waste harmless dispose of 100%, classified collection of more than 60% and utilization of more than 20%.

3.3 Project Conformity with the Master PlansRIg00002 A17978/CIGZ070287

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The content of the Bengbu integrated environmental treatment project financed by the World Bank loan is determined in line with the overall development plan of Bengbu city, water conservancy development plan and the environmental protection goal in the Eleventh Five-Year Plan period. The conformity for the project contents with the master plans of Bengbu Municipality is shown in the following table.


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Table 5: Conformity of the Proposed Projects with Existing Master Plans

No. Name of

PlansPlanned Objectives

Contents of Proposed Projects

Related Sub-projects

1

Bengbu

Urban

Short-term

Constructi

on

Plan

1 ） Urban construction goal — by 2010, 140km of new road will be built with per-capita road area of 10.2m2

Road building in the economic development zone Construction of riverside road and its branch road in Huaishang District Road building in Chengguan town of Huaiyuan county

Sub-project 3 — Urban environmental infrastructure improvmentSub-project 5 — Flood

management and storm drainage and infrastructure improvement in Huaishang districtSub-project 7 — Integrated environmental treatment in Huaiyuan county

2 ） Safeguard goal of water resources — to set up the water security system, increase the bearing capacity of water environment and improve storm drainage of Tianhe River and water environment of Longzi Lake

Construction of Tianhe storm drainage station Desilting works of Longzi Lake

Sub-project 1 — Tianhe flood management and storm drainageSub-project 2 — Longzi

Lake flood management and storm drainage and environmental improvement

3) Key environmental improvement area — Xijiagou— Zhanggongshan Pond—Yinghe neighboring area

Xijiagou desilting and revetment greening project

Sub-project 4 — Xijiagou and Baligou environmental treatment

4）Industry relocation and park construction — new industrial land and newly-built industrial park ； construction of industrial park and district and centralized sewage treatment

Construction of infrastructure, sewage pipe network and treatment plant in Mohekou Industry Park

Sub-project 8 — Integrated environmental treatment in Mohekou of Wuhe county


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2 11th Five-

year

Plan for

Water

Conservan

cy

Developm

ent

1 ） Urban flood prevention — construction of storm drainage pumping station (reconstruction of Xinchuantang, Nanshijia and Wuxiaojie pumping stations）

Wuxiaojie storm drainage pumping station Xinchuantang storm drainage pumping station Nanshijia storm drainage pumping station

Sub-project 3 — Urban environmental infrastructure improvmentSub-project 5 — Flood

management and storm drainage & infrastructure improvement in Huaishang district

2 ） Internal ditch treatment project for Baligou, Xijiagou, Longzi Lake and lower reaches of Beifei river

Desilting of Baligou Desilting of Xijiagou Desilting of Longzi Lake Dredging of Sanpu canal

Sub-project 2 — Longzi Lake flood management and storm drainage and environmental improvementSub-project 4 — Xijiagou

and Baligou environmental treatmentSub-project 8 —

Integrated environmental treatment in Mohekou of Wuhe county

3 ） Promoting urban flood management project construction in Huaiyuan, Guzhe and Wuhe counties

Dredging of ditches and canals and construction of storm drainage pumping station in Guzhen Dredging of flood ditches and construction of storm drainage pumping station in Huaiyuan Construction of storm drainage pumping station in Sanpu of Wuhe county

Sub-project 6 — Integrated environmental treatment in Guzhen countySub-project 7 —

Integrated environmental treatment in Huaiyuan countySub-project 8 —

Integrated environmental treatment in Mohekou of Wuhe county


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4 ） Conservation of water resources and water environmental treatment

Implementation of Longzi Lake and Xijiagou integrated treatment project and improvement of urban water environment

Sub-project 2 — Longzi Lake flood management and storm drainage and environmental improvementSub-project 4 — Xijiagou and Baligou environmental treatment

5 ） Key water conservancy project in the 11th Five-year Plan period — Construction of Tianhe and Longzihe storm drainage stations to upClass the flood management standard in Tianhe depression to once in 20 years and the storm drainage standard to once in ten years. ,

Tianhe storm drainage station Longzihu storm drainage station

Sub-project 1 — Tianhe flood management and storm drainageSub-project 2 — Longzi

Lake flood management and storm drainage and environmental improvement

3 Environme

ntal

Protection

goal for

Bengbu

city in the

11th Five-

year Plan

period

To speed up construction of sewage treatment facilities — fresh sewage discharged in the planned area should be collected and directed to the sewage treatment plant.

Urban sewage collection pipe network project Construction of sewage closure pipelines in each part

Sub-project 3 — Urban environmental infrastructure improvmentSub-project 6 — Integrated environmental treatment in Guzhen county

By 2010, 70% of domestic sewage in Bengbu will be brought under centralized treatmenet ； The discharge from the sewage treatment plant should reach the standard for A, Class I before being dischared into the functional surface water body of Class III.

Sewage treatment plant project in Mohekou Industry Park



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Intensify control over industrial pollution source and build up eco-industrial park — advance the construction of specialized environmental protection park in the pattern of industry park and district construction, centralized sewage treatment and control of the source in combination with industrial restructuring and all the enterprises are required to settle in the Park by 2010.

Construction of environmental infrastructure in Mohekou Industry Park


Devote more efforts to eco-improvement — build more riverside greening belts and forge a urban green passageway

Longzihu slope greening project Tree and grass planting around the riverside road Grass revetment on the left dyke of Hui River

Sub-project 2 — Longzi Lake flood management and storm drainage and environmental improvementSub-project 5 — Flood management and storm drainage & infrastructure improvement in Huaishang districtSub-project 6 — Integrated environmental treatment in Guzhen county


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4 Environmental Baseline Situation

4.1 Topography

The majority of Bengbu Municipality is occupied by plains with relatively centralized hills and many interlaced rivers, canals and lakes. The area to the north of Huai River is mostly plain, accounting for about 86% of the whole municipality. To the south of Huai River, there is mainly incontinuous hilly area with some lakes, which accounts for about 9% of the whole municipality. And the water surface accounts for 8% of the whole municipality, including the rivers like Huai River, Guo River, Huaihongxin River and the lakes like Sifang Lake, Tuo Lake and Xiangjian Lake.

4.2 Hydrology

Bengbu Municipality is a part of Huai River. There are many rivers and lakes distributed in the city (as shown in Figure 8), which respectively belong to Huai River water system and Huaihongxin River water system as presented below.

Table 6: Main Characteristics of Water Systems in Bengbu

Name of Water System

Catchment Area (km2)

Names of Key RiversNames of Key

LakesName of Key

Low-lying Areas

Main stream of Huai River

2120

Huai River;To the left of Huai River: Nihei River, Qianhuaixin River, Qian River, Guo River;To the right of Huai River: Dushan River, Tianhe, Baligou Canal, Xijiagou Canal and Longzi River

Qianhewa Lake, Tianhewa Lake and Longzi Lake

Tangyu Lake, Jingshan Lake, Kongjin Lake, Fangqiu Lake,

Xiangfu Section, Linbei Section, Sanchong Lake,

Sanpu Lake, Huayuan Lake

Huaihongxin River

3832 Huaihongxin River, Middle-stream and downstreatm of

Beifei River, Xie River, Baohui River and Tuo River

Sifang Lake, Xiehewa Lake, Xiangjian Lake, Zhangjia Lake,

Tuo Lake, Tianjing Lake,

Diaoyutai Lake,

Huajiagoul, Liancheng,

Jiuwan, Heinigou, Malagou,

Longtan Lake


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Sancha River


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Figure 8: Aquatic Systems in Bengbu Municipality


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The average runoff depth of Bengbu Municipality is 246.4mm, and the corresponding runoff quantity is 1.5billion m3. The average flow of Huai River is 841m3/s with the annual passing runoff quantity of 26.5billion m3. There are more than 60 controllable rivers and lakes with the water surface around 400km2 and the water storage of 769million m3. The section of Huai River within Bengbu Municipality is 147km with the width between 600-800m and the bottom elevation around 8m (Yellow River elevation system). Bengbu section is in the lower section of the middle-stream Huai River, which is featured by its smallest riverbed elevation difference, only 5% of the total difference of the river. However, 90% of the riverbed elevation difference is concentrated in the upper stream section. The significant difference has resulted in the frequent floods in the middle stream due to large amounts of flood discharge from upstream during the flooding season every year.The catchment area controlled by the Bengbu Section of Huai River main stream (Upstream of Bengbu Gate) is 121,000km2, accounting for 64.7% of the total catchment of Huai River. The measurement by Bengbu Hydrology Station shows that the average annual flow here is 26.7billion m3 with the maximum of 63.7billion m3 (in the year of 1954) and the minimum of 2.7billion m3 (in 1978). The highest flood level of typical flooding years happened in 1954, which is 22.18m, while the lowest flood level of Huai River Bengbu Section is 10.36m (December 1966). On a yearly basis, the highest water level normally happens in July, which is 15.52m by average; and the lowest water level happens in January, which is 12.77m by average.With the completion of the Bengbu Gate, the hydrological characteristics upstream and downstream of the gate have dramatically changed. The upstream water level is normally between 17-18m, while the normal downstream water level is around 13m, which means there is about 4-5m water head difference. Therefore, the regulation of Bengbu Gate has made the flow of Huai River in this section change from smooth flow to stagnant flow. The upstream stagnant section becomes the surface water recharging the groundwater throughout the year, while the downstream section is recharged by the groundwater.

4.3 GeologyBengbu is in the North China Strata Region, where Lower Proterozoic Wuhe Group Xigu Stratum and Neo-archean Quaternary are growing. Tectonic unit belongs to Sino-Korean Paroplatforms, its scale includes Huai River basin and Jianghuai Area, it’s only an angle at south-east of platform, belonging to Class Ⅰ tectonic unit, which is divided into several secondary units, Bengbu is in the Class Ⅲ unit – above Bengbu platform arch. The stratum is the Huai River division of North China Strata Region, Middle and Late Paleozoic Stratums are missing. Strata before Early Paleozoic are mainly composed by the metamophic rock and marine strata, Strata of Mesozoic Era and Cenozoic Era are mainly composed by terrestrial strata and volcanic rock.

4.4 ClimateBengbu is at the northern edge of North Subtropical Zone, in the humid region of tropical monsson climate, the main characteristics are long winter and summer, short spring and autumn, the rainfall is concentrated in the rain season, illumination is abundant, quantity of heat is rich, the frostless period is long. In winter, controlled by Siberian High Pressure, the north-west wind is frequent, the climate is dry and less rainfall; in summer, influenced by Pacific Subtropical High


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Pressure, the south-east wind is frequent, the climate is hot and humid, the rainfall is concentrated.Since the confrontation of inter-annual cold and warm air mass activities is frequent, the rainfall is concentrated, the annual average precipitation is 905.4mm, and the average frostless period is 217 days. The leading wind direction in Bengbu is east wind, the first season is north-east wind, the second season is east wind, the third season and the forth season are east-north wind. The calm wind frequency in the whole year is 6%, the multi-annual average wind speed is 2.5m/s, and that in flood season from June to September is 2.3m/s, the max average wind speed is in June, which is 3.0m/s, the min average wind speed is in January and August, which is 2.1m/s.

4.5 Soil and vegetationThe types of soil are various in the whole city, the classification uses the “5 categories taxonomy”: soil order, soil great group, soil subgroup, soil genus and soil species. In the whole city, there are 5 soil orders, 8 soil great groups, 13 soil subgroups, 31 soil genuses and 62 soil species. Bengbu is in the transition area between North Subtropical Zone and South Warm Temperate Zone, across two bioclimatic zones. The topography and geomorphology is complex, so the soil types and distribution are transitional. There is no high mountainous area in the city, so there is no evident rule of vertical spectrum mountainous soil distribution. Although the transitional soil characteristic isn’t evident, the various soil distribution characteristics under corresponding topography and field quality conditions are still clear, so the regional distribution has various forms.Tu Mountain, Jing Mountain, Laohu Mountain, Yan Mountain, Cao Mountain, Zhuizi Mountain, East and West Lu Mountain and Dagong Mountain are acid crystalline rock hills, which form the soil area with yellow-brown soil and Aluminosilisic skeletal soil; Dahong Mountain, Minglong Mountain, Dajin Mountain and Dafei Mountain are carbonate hills, mainly the brown limestone soil; Flood area along Huai River, Guo River, Xie River, Hui River and middle and down streams of Beifei River are distributed with fluvo-aquic soil; low-lying plain in Huaibei and Tianhe Lake area are Shajiang black soil areas. The soil distribution rule from south to north is: yellow-brown soil-fluvo-aquic soil-Shajiang black soil.Bengbu is in the transition zone of deciduous broad-leaved forests in warm temperate zone, deciduous broad-leaved forests in north subtropical zone and evergreen broad-leaved forests, the main vegetation is deciduous broad-leaved forests in warm temperate zone. The native natural vegetation has disappeared because of the historical changes, but the typical north and south trees are distributed in this area. The vegetation can be divided into following types according to the natural vegetation and artificial vegetation: secondary forest shrub, ancient scattered trees, artificial forest, protection forest and surrounding scattered trees, fruit trees, mulberry trees, underbrush, fireweeds, marsh and aquatic vegetation.The artificial forest is monotonous, there are more pure forests and less mixed forests, usually it’s the mixture of black pines, masson pines and locust trees, sawtooth oaks. The protection forest is along Huai River embankment, poplar trees, Chinese parasol trees, deodar cedars and Chinese locust trees are planted at 2 sides of the urban roads, the greening of suburban roads is poplar trees, willows, paulownia and locust trees. Suburban gardening farms and fruit forests villages have economic forests such as apple trees, pear trees, grapes and pomegranates. There are 415 tree species in the whole city, belonging to 56 families, 102 genuses. There are 140 species of common arbors, 70 species of common bushes and 10 species of vine plants.


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4.6 AirIn 2005, the annual average concentrations of SO2, NO2 and PM10 (Particle Matter) in Bengbu are compliant with Class II requirements of the national standard, “Environmental air quality standard” (GB3095-1996). The annual average dust concentration is lower than the provincial recommended level. It is shown by the monitoring results (see Table 11) that the key pollutants in the air are PM10 and dust, which account for 88% in the total pollutants. The air quality also shows a temporal variation with higher pollutant concentrations in winter and spring.

Table 7: Monitoring results of air quality (annual average, unit: mg/m3)Monitoring points SO2 NO2 PM10 Dust (t/km2/m)

Workers’ sanatorium 0.034 0.036 0.069 9.65

No.2 WTP 0.047 0.052 0.079 12.50Department

Store 0.021 0.039 0.062 13.00

Although Bengbu is not within the controlled area for acidic rain, the situation is getting worse in view of increasing frequency and decreasing pH value of acidic rain taking place in this area (as shown in Table 12).

Table 8: Statistics of acidic rain in Bengbu (2000-2005)

Year Occurrence frequency (%) pH range Average pH value

2000 6.0 4.91~7.60 6.162001 5.0 4.85~8.30 6.142002 15.4 4.28~7.53 5.462003 17.8 4.23~7.83 6.292004 17.9 3.42~7.91 6.212005 59.5 3.46~7.74 5.39

4.7 Surface WaterAs is known, Huai River is one of the most polluted rivers in China, and despite considerable government efforts (including participation of the World Bank on the Huai River Pollution Control Project), it has proven to be one of the most difficult to clean up. According to the historic monitoring results2, although the government has made significant investments on the pollution control of Huai River, the water quality of Huai River for Bengbu section does not meet the Class III water quality target3 in the last seven years. This is especially during the dry season from January to March (shown in Figure 6) when the flow rate of Huai River is low and insufficient to dilute the incoming pollution.

Table 9: Water quality classification of Huai River within Bengbu (2000-2006)

River name

Water quality target 2000 2001 2002 2003 2004 2005 2006

Huai River

Class III IV IV III-V IV IV-worse than V III-IV III-IV

Non-compliant COD, Non- NH3-N DO, BOD5, NH3-N, NH3-N NH3-N

2 Environmental quality yearly report of Bengbu Municipality, www. Bbepb.gov.cn.3 Required by Huai River water functional zoning and “Pollution control plan for the

eastern line of North-South Transfer Project”.RIg00002 A17978/CIGZ070287

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parametersion

Ammonia, NO2-N

CODMn, BOD5, NH3-N, COD

NH3-N BOD5

Water Quality Classification of Huai River

1

2

3

4

5

620

04 J

an

Mar

May Ju

l

Sep Nov

2005

Jan

Mar

May Ju

l

Sep Nov

2006

Jan

Mar

May Ju

l

Sep Nov

Water quality objective Bengbu Gate Wujiadu

Bengbu Road Gate Linhuaiguan Xiaoliuxiang

Note: The classification is based on the five classes of water quality in GB3838-2002 Environmental Quality Standards for surface water. And Class 6 in the figure refers to the water quality worse than Class V.

Figure 9: Variation of water quality classification for Huai River (2004-2006)However, the situation seemed to be improved in 2006. According to the surface water monitoring data of 2006 (see Table 6 and Figure 7), only the monthly average concentration of NH3-N is a little beyond the Class III requirements.

Table 10: 2006 monthly average water quality monitoring data of Huai River

Monitoring Cross-section

pHEC

ms/mDO CODmn BOD5 NH3-N Petroleum

Volatile Phenol

Downstream of Bengbu Gate

7.72 48.9 6.67 3.93 2.49 0.91 0.01 0.001

Xintieqiao 7.72 49.6 5.94 4.16 2.85 1.05 (*) 0.01 0.0015Moheko 7.72 49.1 6.04 4.14 2.89 1.05 (*) 0.01 0.0013

Class III requirements

(GB3838-2002)6-9 / >=5 <=6 <=4 <=1 <=0.05 <=0.005


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(*) Values exceeding the standards

List of water quality monitoring cross-sections: 1-Upstream of Bengbu Gate; 2-Downstream of Bengbu Gate; 3-Xintieqiao; 4-Mohekou.

Figure 10: Water Intake & Water Quality Monitoring Cross-sections along Huai River

4.8 GroundwaterThe groundwater resources of Bengbu Municipality are mainly at north of Huai River, the module of groundwater yield is 198,000m3/a·km2. According to the current research data, the ancient river course zone at south of Huai River since Cenozoic Era is growing, coarse and fine grains of loose sediment are distributed alternately as layers from top to bottom; beside this characteristic, the grains of sediment in horizontal direction get thicker from south to north. The exploitable groundwater is concentrated in the fine sand or middle fine sand layers which the buried depth is more than 20m, especially in ancient river course area. The groundwater which can be explored in the future is in Caolaoji.The groundwater resources are deficient at south of Huai River, the groundwater is mainly stored in the apertures of Weathered Bedrock and tectonic cracks, the module of groundwater yield is less than 50,000m3/a·km2. The water richness of groundwater is poor and it isn’t well distributed, so the centralized exploitation is inappropriate.Since the shallow groundwater accepts directly the rainfall and seasonal and local surface water supply, the pollution is serious, the water quality of groundwater is bad, in Xiaobengbu, Wuxiaojie and north of Changhuai Town, especially near the pollution discharging and accepting sites (canals, ponds, ditches, and pools), the water quality can’t reach the Class Ⅲ standard. Deep-layer groundwater means the confined water of which the buried depth is more than 20m, the water quality


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is good. Groundwater in bedrock is distributed at south of Huai River, the water quality is good, it’s the good drinking water.Monitoring of groundwater quality has been undertaken by the municipal EPB for the whole municipality, which shows the water quality around Class IV from 2000 to 2005, as shown in the following table.

Table 11: Groundwater quality2000 2002 2003 2004 2005

Water quality classification IV IV IV IV III-IV

Non-compliant parameters

Coliform, NO2-N, NH3-N, As

Coliform, NH3-N, NO2-N, As

NH3-N, NO2-N

Total hardness,

NH3-N/

4.9 Water SupplyHuaihe River crosses Bengbu and serves as the major source for industrial and domestic water in Bengbu city and water for farmland and vegetable garden in its suburbs. The main water intake is at the upstream of Bengbu Gate on the Huai River, which is supplemented by groundwater supply for some industries in the urban area, the groundwater supply for Huaishang District, and the emergency water supply source of Tianhe Lake.The tap water for the city is supplied by the Water Supply Company and some enterprises withdraw underground water and Huaihe River water as their self-provided source. The city has built three tap water works, all of which take water from Huaihe River. The designed water supply capacity totals 500,000 t/d ， of which 50,000 t/d from No.1 Water Works, 50,000 t/d from No.2 Water Work and 400,000 t/d from No.3 Water Works. The intake of No. 1 and No.2 Water Works is located below the Bengbu Sluice and the water pumped is the untreated urban sewage and so water pollution is serious. In 1981 Ganglianghe Diversion Project with a design capacity of 80,000 t/d was completed. When the Bengbu Sluice is closed, No. 1 and No.2 Works have to divert water above Bengbu Sluice ， but water quality is still not guaranteed. Currently, both No. 1 and No.2 Works have stopped water supply and No. 2 Works is now supplying the production enterprises of Fengyuan Group. No.3 Water Works is located on the south bank of the Huaihe River at the eastern foot of Mount Heihu in the western suburbs of Bengbu city. The water pump house is located at about 200m to the upper reaches of the Bengbu Sluice and in 1987 the first-phase water supply works of 100,000 t/d was completed and in 1990, 1995 and 1998 the second-, third- and fourth-phase works were completed successively with a total water supply of 400,000 t/d. Now water supply in Bengbu depends on No.3 Water Works mainly. In 1995, serious and unexpected water pollution occurred in the Huaihe River, which affected the water quality of the three water works. The Bengbu Municipal Government decided to divert water from Tianhe River as the emergency supplementary water source for the three water works. The project was built up in 1996 and the pump house had a design capacity of 150,000 t/d and designed supply period would last for three months or so. The analysis of the actual water supply data over the years in Bengbu shows the proportion of urban industrial water tends to drop while that of domestic water tends to rise year by year. Currently about 284.8km of distribution pipe network is laid in the urban district with a pipe diameter of D100-D1400. Apart from water


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supplied by the tap water works, some industrial and mining enterprises in Bengbu withdraw most of water from the Huaihe River and part from the underground source and Longzi Lake as their self-provided source. According to survey, the whole city has about 50 self-provided sources using small water supply equipment with a total water supply of 50,000t/d. Water quality at the water intake has been deteriorating since 1980’s with the occurrence of several water pollution accidents respectively in 1989, 1992, 1994, 1996, 1999, 2001 and 2004. Especially during the dry season, the water quality of Huai River is too poor to meet the water supply requirements (generally considered to be Class III), due to the lack of dilution by sufficient flow. According to the water quality monthly reports of urban centralized drinking water sources in Anhui Province4 (Jan.2006 to Feb. 2007), there are six non-compliant records for the water intake upstream of Bengbu Gate, mostly during January to March with NH3-N as the key pollutant (See Table 8 below). At this stage, the impact of these incidents on tap water quality is unavailable.

Table 12: Water quality of major centralized drinking water source in Bengbu (Upstream of Bengbu Gate on Huai River)

2000 2001 2002 2003 2004 2005Water quality classification Class IV Class III-IV N/A N/A N/A Class III-IV

Standard-compliant rate 94.91% 95.24% 91.88% 93.59% 91.02% 94.23%

Key pollutants BOD, NH3-N Non-ion NH3 NH3-NDO, NH3-

N NH3-NCODMn, NH3-

N

Table 13: Non-compliant months for water intake upstream of Bengbu Gate

Non-compliant Month Key pollutantsJanuary 2006 NH3-N (1.38 times beyond standard)February. 2006 NH3-N (1.19 times beyond standard)March 2006 NH3-N (1.49 times beyond standard)July 2006 DO (0.94 time beyond standard)January 2006 NH3-N (1.36 times beyond standard) & Mn (0.54 time beyond

standard)February 2006 NH3-N (1.67 times beyond standard) & Mn (0.35 time beyond

standard)In view to the possible shortage of water supply due to the pollution in dry season every year, Tianhe was developed as the emergency water supply source for Bengbu urban area in 1996.

4.10 Storm Water and Wastewater Management

4.10.1 Existing Drainage System

The drainage system of Bengbu Municipality is constructed and connected catchment by catchment. The existing drainage system in the urban area is summarized below.

Table 14: Summary of Existing Drainage System in Bengbu Urban Area

Located Area Detailed ScopeDrainage

System

4 http://www.aepb.gov.cn/index.aspRIg00002 A17978/CIGZ070287

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Old Urban AreaEast of Xijiagou Canal, south of Huai River, North of Tushan

Rd., West of Hangzhen Rd. and Heihu Mount.Combined

SystemHongye Village AreaEast of Nanhu Rd., West of Longzi Lake, North of Lanling

Road, and south of Shengli Rd.

Area west of the ring

dyke

North of Donghai Ave.

South of Donghai Ave.

Separate

System

Longzi Lake Dis. Area east of Longzi Lake

Area north of Huai

RiverHuaishang Dis.

4.10.2 Existing Combined Drainage System and Storm Drainage System

The existing combined system mainly covers the old urban area within the ring dyke and the industrial area west of the ring dyke and north of the Donghai Avenue. According to the statistic data, by the end of 2005, the total length of existing drainage pipes is 378 km, in which 329 km is the total length of the pipes of the combined system and the storm drainage pipes in the separate system. In addition, there are 13 storm drainage pumping stations, which pumps most of the storm water from the constructed area of Bengbu Municipality into the receiving water bodies such as Huai River, Longzi Lake, Xijiagou Canal and Baligou Canal.

4.10.3 Existing Sewage System

Up to now Bengbu has one municipal WWTP in operation, that is, the No.1 (Xijiagou) WWTP. The construction of the No.2 (Yangtaizi) WWTP is about to be started, and the No.3 (Huaishang) WWTP is under construction. The sewage systems corresponding to the above WWTPs are also under construction, and the details are shown below.


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Table 15: Current Progress of Existing Sewage Systems

Name of the Sewage System

Current Status of Wastewater Collection System Current Status of corresponding WWTP

Xijiagou Wastewater Catchment

Combined system:

- Wastewater interceptors for West Shengli Road, Weisi Road, Tushan Road, Wuwan Road, west bank and east bank of Xijiagou Canal have been constructed, so that all the wastewater from the area of combined system in dry season could be collected and sent to the Xijiagou WWTP;

Separate system:

- West of Xijiagou Canal: Most pipes laid, the sewage lifting pumping station for HTZ has been completed and will be put into operation soon;

- East of Xijiagou Canal: sewage pipes and lifting pumping station are under construction. It is expected that they could be completed by the end of 2007.

Phase I (100,000m3/d) in operation;

Phase II (100,000m3/d) completed, which will be put into operation soon.

Yangtaizi Sewage System

Combined system:

- The sewage is now discharged into Huai River through the Qingnianjie Storm Drainage PS, Zhihuai Rd Storm Drainage PS and Longzihe Storm Drainage PS. Zhihuai Rd wastewater interceptor sewer and Changhuaiwei Rd trunk sewer are under construction, which are expected to be completed by the end of 2007, and by that time the dry-season flow from the combined system can be collected and sent to the Yangtaizi WWTP.

Separate system:

- West of Longzi Lake: Most pipes laid, the sewage pumping station for this area is in operation. Currently the wastewater from west of Longzi Lake is discharged into Longzi Lake through the Longzihe Storm Drainage PS. However, with the completion of the Changhuaiwei Rd trunk sewer, it will be collected by the Yangtaizi WWTP;

- East of Longzi Lake: Part of the sewers and a sewage lifting PS are constructed. Currently the sewage from east of Longzi Lake is temporarily discharged into the Baojiagou Canal, and the wastewater is planned to connected with the Yangtaizi WWTP when it is completed.

The design of the 200,000m3/d(by two phases) WWTP is completed, and the construction will start soon.

4.10.4 Existing Problems

- The design criteria of existing drainage network in the old urban area is too low, the design return period is no more than 0.5 year, the runoff coefficient and pipe diameter is too small, which limit the storage capacity of the pipes and easily result in wate logging of the catchment;


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- The drainage of some sub-catchments is not designed in accordance with the local topography, such as the west sub-catchment and the Nanshijia system;

- The storage capacity of the inland rivers in the city is decreased due to the construction and random garbage dumping around the area;

- The design criteria of some exiting storm drainage PSs, such as Nanshijia PS and Xinchuantang PS, are too low, and some storm drainage PSs are not well maintained;

- The urban wastewater treatment and drainage system is incompleted, and the only existing WWTP is already under full-load operation;

- With the rapid development of Bengbu Municipality, the wastewater quantity increases dramatically beyond the original planning;

- The construction and management of urban drainage project is not concentrated, which greatly impacts the systematic and integrated development of drainage network;

- The local operation and maintenance capability is not efficient;- The insufficient internal drainage management for constructed area results

in the mixed discharge of sewage and storm water even in the area of separate system and the incompliant discharge from some industries.

4.11 Water Pollution Source

4.11.1 Major Industrial Polluters

The wastewater from the urban area of Bengbu Municipality is mainly discharged into the Huai River through seven outfalls. The major industrial polluters are mainly distributed in the area to the south of the Huai River and the Bengbu Industrial Park in the west of Huaishang District to the north of the Huai River. According to the list of key polluters of 2006 provided by Bengbu Municipal EPB, there are totally 33 industrial key polluters, 13 in the urban area and 20 in the three suburban counties. Their total pollutant discharge accounts for 90% of the total industrial discharge from the industries in the municipality. The details are shown in the following table.

Table 16: The statistical table of pollution discharge situation from the key pollution enterprise in Bengbu City in 2006

No. Name of the enterprise The region located

Water withdrawal

(ten thousand

tons/years)

Withdrawal (ton/year)

Pollutant densityMg/l

CODcr

Ammonia

nitrogen

CODcr

Ammonia

nitrogen

1Anhui BBCA Biochemical Co., Ltd.

Yuhui District

3882.80 4950.57 504.76 127.5 13.0

2Anhui Bayi Chemical Co., Ltd. （ Production Division II）

Longzi Lake District

307.66 307.66 46.15 100 15.0

3Anhui BBCA Fuel Ethanol Co., Ltd.

Huaishang District

147.61 214.03 36.90 145 25.0


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Water withdrawal

(ten thousand

tons/years)



CODcr

Ammonia

nitrogen

CODcr

Ammonia

nitrogen

4Bengbu Tushan Thermal Power Co., Ltd.

Yuhui District

543.15 461.68 8.31 85 1.5

5BBCA Biochemical Co., Ltd. No.15 Factory

Huaishang District

152.00 142.24 22.80 94 15

6Bengbu Corduroy Group Co., Ltd.

Yuhui District

126.15 126.15 10.01 100 8

7Anhui Baishi Chemical Co., Ltd.

Yuhui District

22.80 67.26 0.09 295 0.4

8Bengbu No.1Sewage Treat Plant

Yuhui District

4554.00 2385.73 119.75 52 5

9Anhui Tiger Biotech Co., Ltd. Bengbu Branch


51.21 43.53 1.34 85 3

10Anhui BBCA Fuel Ethanol Co.,Ltd.

Yuhui District

210.00 199.5 21.0 95 10

11Bengbu Hongye Meat Processing Complex Limited


31.00 187.24 1.62 604 5.2

12China Tobacco Anhui Industrial Corporation Bengbu Cigarette Factory

Bangshan District

120.00 114.00 2.17 95 2

13Anhui Bayi Chemical Co.,Ltd. （ Production Division Ⅰ）

Yuhui District

115.00 104.65 1.15 91 1

14Huarun Xuehua Beer Co., Ltd ． (Anhui) Bengbu Branch

Huaiyuan County

126.82 164.87 2.54 130 2

15Huaiyuan County Jinhuaihe Food Co., Ltd.

14.40 90.00 1.440 625 10

16Anhui Province Huaiyuan County BBCA Cement Co., Ltd.

0.50 0.50 100

17Anhui Zhongyi Paper Co., Ltd.

40.20 40.20 0.129 100 0.3

18Huaiyuan County Sanlian Paper Co., Ltd.

75.80 62.46 0.299 83 0.4

19Wits Food Industry (Anhui) Co., Ltd.

5.00 5.00 100

20 Anhui BBCA Oil Co.，Ltd. Guzhen County

21.76 17.41 0.109 80 0.5

21Guzhen County Tianyuan Chemical Co., Ltd.

3.68 1.84 0.051 50 1.3

22Guzhen County Xuyuan Liquor Co., Ltd.

73.60 69.92 0.677 95 1

23Bengbu Hongyuan Paper Co., Ltd.

35.00 33.25 0.172 95 0.5

24 Anhui Yake Beer Co., Ltd. 5.40 5.78 0.085 107 225 Bengbu Kangsheng Paper

Co., Ltd.25.58 23.53 0.194 92 1


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Water withdrawal

(ten thousand

tons/years)



CODcr

Ammonia

nitrogen

CODcr

Ammonia

nitrogen

26Bengbu Angle Paper Co., Ltd.

19.24 15.76 0.181 82 1

27Anhui Huaihe Liqor Co., Ltd.

Wuhe County

0.64 0.35 0.002 55

28Anhui Wan Liquor-making Co., Ltd.

80.00 75.20 12.00 94

29Anhui Hengyuan Industry Chemical Co., Ltd

0.50 0.50 100

30Anhui Province Hongyan Plastic Industry Co., Ltd.

3.50 2.45 0.088 70

31BengbuYongfeng Dyeing Chemical Co., Ltd,

10.92 9.78 0.766 90 7

32Wuhe County Jiangda Industry & Trade Co., Ltd.

127.00 247.65 15.24 195 12

33Anhui Province Xinghe Cement Co., Ltd.

2.00 2.00 0.3 100 15

Total 10932.92 10172.68 810.3

The above table shows that, from the profession category, the primary industries are chemical engineering industry, food industry and light industry in the Bengbu industrial enterprises, among which chemical industry enterprise holds the quite great proportion. While from the position the enterprise situated, the enterprises holding the big share in the pollutant withdrawal are mostly concentrated in the urban district (south of the Huaihe River), in which industrial enterprise in Yuhui District are the majority. From the enterprise wastewater withdrawal, the industrial wastewater re mainly from BBCA Biochemical Co., Ltd. and Bayi Chemical Co., Ltd.. From the enterprise pollutant density discharged, the chemical enterprises are the main sources of pollution. In addition, it can also be seen the wastewater withdrawal from No.1 Wastewater Treatment Plant is largest, but its wastewater density and the pollutant withdrawal are actually relative low, which indicated that the function of the wastewater treatment plant is remarkable in reducing the total pollutant quantity.

4.11.2 Pollution enterprise situation in the construction place

“City environment infrastructure improvement project” includes primarily newly built, reconstruction draining water pipe network project, and it also includes the sewage promotion pumping station projects. The constructed the pipe networks in the project are mainly the existing sewage pipe network connection pipeline and the sewage pumping station wastewater collection pipeline. The completion of the project will enormously enhance the city sewage collection rate in the network and also provide the water volume safeguard for the full loading and operation of the wastewater treatment plant.The regions involved in the pipe network engineering construction are the old city area, the economic development zone, the high and new zone and the Longzi Lake District. The industrial enterprise wastewater in the region will also enter the sewage treatment plant through this project pipe network, therefore it will be especially important for the quality characteristic of the industrial enterprise


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wastewater in the water scope received. When the industrial enterprise wastewater containing toxic and hazardous substances enters the sewage treatment plant, it may cause certain influence on the sewage treatment plant normal operation. Therefore the environmental impact assessment investigated the main industry pollution sources in the water receiving scope of this project, and made clear about its discharging water quality ingredient, the density and the toxicity in order to have the choice in receiving the wastewater for the sewage treatment plant. The investigation result of the pollution enterprises in the construction place are shown in Table 4-4-3.After investigation and screening of the enterprises, among 35 key enterprises, there are 9 enterprises able to gather its wastewater in the sewage collecting system and enter the wastewater treatment plant because of this project implementation. In the enterprises, 6 are in the urban district, 3 are in the Huaishang area. These enterprises are all equipped with the pretreatment facility at present and the production wastewater is treated and discharged into the water body after meeting the standards. After 6 enterprises in urban districts waste water treatment meeting level I in Integrated Wastewater Discharge Standard, the waste water can discharge into Huaihe River through Xijiagou, Baligou, Longzi Lake and Baojiagou. In Huaishang Disrtrict 3 enterprises’ wastewater is discharged into Beifei River after meeting standard level II, and then is discharged into Huaihe River at the Mohekou.The investigation results showed that, in the above 9 enterprises, the waste water does not include toxic and hazardous material such as heavy metal etc., therefore the waste water comes into the sewage treatment plant after the pipe network collection will not to be able to have the destruction influence to the sewage treatment factory normal operation.The enterprise pollution discharge material provided from the environmental protection bureau, Bengbu altogether has 5 according to the heavy metal withdrawal sorting key pollution enterprise, distributes in the Longzi Lake District and the Yuhui District. In this project the pipe network of these enterprises haven’t been collected directly, but as a result of construction of the sewage main pipeline and branches, it has provided the convenience for various sewage branch engagement in the future. Therefore there is still possibility that the enterprise wastewater will be engaged after this project completes and will influence the normal operation of the wastewater treatment plant.For the two enterprises among them, the Weiye Heavy Industry and the Changhong Galvanize, their withdrawal of the wastewater and the heavy metal are both quite large. In addition, the factories are both located near the Bali Ditches in the Yuhui area. Therefore after the consummation of the pipe network construction, they may be connected to the water pipe collection network in the wastewater treatment plant.In order to avoid the adverse effect on the operation of the wastewater treatment plant, it is suggested in the environment impact assessment to treat the above enterprise wastewater separately and discharge the treated water when it meets the standards. It must not been dispersed into the wastewater treatment plant.


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Table 17 : Investigation on the discharged wastewater situation of the pollution enterprises in the place of the construction

Serial

numbe

r

Name of the

enterprise

The

region

located

Main product Waste water

quantity(10000

tons/years)

Pollutant withdrawal

(ton/year) Characteristi

c pollutant

The place where the

water discharged

Emissions

standardNote

Codcr Nh4

1

Anhui BBCA

Fuel Ethanol

Co., Ltd.

Yuhui

District

Fuel ethyl

alcohol210.00 199.5 21.00

Pipe network ->

Huaihe River

Comprehensiv

e level 1

Provinc

e

controlle

d

2

Anhui Baishi

Chemical

Co., Ltd.

Yuhui

District

Vanillin,

Aminomethyl

zole

22.8

67.26 0.09

Pretreatment -> the

pipe network -> Xijia

Ditch

Comprehensiv

e level 1

State

controlle

d

3Tianrun

Chemical

Yuhui

District

Jianghuai

Rd.

O-phthalic

anhydride,

PAM 52.86

Pretreatment ->

pipeline -> Bali Ditch

-> Huaihe River

Comprehensiv

e level 1


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Serial

numbe

r

Name of the

enterprise

The

region

located


quantity(10000

tons/years)


(ton/year)

Characteristi

c pollutant

The place where the

water discharged

Emissions

standardNote

4

Anhui Bayi

Chemical

Co., Ltd.

（Productio

n Division

II ）

Longzi

Lake

Huaibin

Rd.

P-nitro-

chlorbenzol,

Phenol, sodium

phenylate

307.66

307.66 46.51 TOC

Pipe network ->

Jiaotong Road

system -> Huaihe

River

Comprehensiv

e level 1

Provinc

e

controlle

d

5

Anhui Tiger

Biotech Co.,

Ltd. Bengbu

Branch

Longzi

Lake

District

Dongjiaoc

ao Mount

Feed additive

VC phosphate

51.21

43.53 1.34

Pretreatment ->

Baojia village ->

Huaihe River

Comprehensiv

e level 1

State

controlle

d

6

Bengbu

Hongye

Meat

Processing

Complex

Limited

Longzi

Lake

Fengyang

East Rd.

Canned food 31.0

187.24 1.62

Pretreatment -

>Longzi River

drainage pumping

station -> Huaihe

River

Comprehensiv

e level 1


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Serial

numbe

r

Name of the

enterprise

The

region

located


quantity(10000

tons/years)


(ton/year)

Characteristi

c pollutant

The place where the

water discharged

Emissions

standardNote

7

Anhui BBCA

Biochemical

Co., Ltd. No.

15 Factory

Huaishan

g District

Huaiwu

Rd.

Sodium citrate 152.0

142.24 22.8

No. 1 Hebei Ditch ->

Beifei River -> enter

Huaihe River

through Mohekou

Comprehensiv

e level 2

Provinc

e

controlle

d

8

Bengbu

BBCA

Gelatin Co.,

Ltd.

Huaishan

g District

Xiaobeng

bu

Gelatin,

Bone glue

147.61

214.03 36.9

Pretreatment -> the


Huaihe River

through Mohekou

Comprehensiv

e level 2

State

controlle

d

9

Huaneng

Bengbu

Citric Acid

Anhydrous

Factory

Huaishan

g District

Shuangdu

n Rd.

Sodium citratePretreatment -> the


Huaihe River

through Mohekou

Comprehensiv

e level 2

State

controlle

d


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4.12 Solid Waste Management

In 2005, the total domestic solid waste production of the municipality was 270,000t per year, all was dumped without treatment due to the absence of operational sanitary landfill site. The annual industrial solid waste production in 2005 was 647,600t, in which 569,800t was reutilized with the reutilization rate of 87.98%, and 0.4100 t was properly disposed. The production of industrial hazardous waste in Bengbu is given as 0.36t (!) – however, there probably is a typing error in this data as, from crossed information, there is a plan to implement a 10 t/day industrial landfill in Bengbu, therefore the figure would more probably be 3600 t/year. According to the master plan, the hazardous waste would be properly disposed and reutilized, however DRA Consultant have no information on the way this done.

According to the solid waste production from 2000 to 2006 shown in Table 10, both domestic and industrial solid waste shows an increasing trend, especially the industrial solid waste, which has increased by 80% from 2000 to 2005.

Table 18: Solid waste production and disposal in Bengbu (2000-2005)

Year 2000 2001 2002 2003 2004 2005 2006

Production of domestic waste (1000t) 174 226 240 240 260 270 382

Treated quantity of domestic solid waste

(1000t)0 0 0 0 0 0 213

Treatment rate of domestic solid waste (%) 0 0 0 0 0 0 55.8

Production of industrial solid waste (1000t)358.

3

400.

9

428.

0

428.

0

421.

7

647.

6NA

Reutilized quantity of industrial solid waste

(1000t)

287.

5

360.

4

316.

2

316.

2

349.

4

569.

8NA

Reutilization rate of industrial solid waste (%) 80.24 89.89 74.19 73.87 82.85 87.98 NA

Treated quantity of industrial solid waste (t) 1400 500 2500 2500 2600 4100 NA

Production of hazardous waste (t) (*) 0.14 0.16 0.25 0.25 0.26 0.36 NA

(*) It is very likely that the figures in the Table last line are in 10,000 tons and not tons (to be confirmed)

In March 2006, Phase I of Bengbu sanitary domestic solid waste landfill site was completed and put into operation with the treatment capacity of 600t/d, which could dispose most of the domestic solid waste production from Bengbu urban


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area, which was around 650t/d in 2006. Phase II of the solid waste landfill site is still under construction and expected to be completed by 2008 with the treatment capacity of 1000t/d.

4.13 Ecological Environment

Ecological resources in Bengbu include aquatic and terrestrial ecological resources. Aquatic ecological resources are mainly in the rivers and lakes in Bengbu. The fishes include crucian carps, silver carps, carps and other fishes with low economic value. Aquatic plants include reeds, water hyacinths, Waternut Spikesedges, water caltrops, arrowheads of Qian River and stratospheres.

Terrestrial ecological system includes the terrestrial vegetation and animal resources. The occasionally seen wide animals include hares, phasianus colchicuses, wide chickens, white storks, badgers, hedgehogs, prionailurus bengalensises, owls, golden eagles, swans, bats, mice, snakes, frogs, toads, lizards, geckos, wild geese, magpies, crows, sparrows, mallards, culvers, heron, woodpeckers and cormorants, etc.

4.14 Natural Hazards

The geological hazards in Bengbu Municipality happen mainly in the areas along Huai River, including the break on banks of rivers and lakes and seepage in dykes and embankments; the activities of geological hazards in North China Plain are light. Slow variation geological hazards are the main hazards.

The main geological hazards in flood season are collapse, landslide, seepage, embankment break, which happen on the embankments of main course and branches of Huai River. The landslide and collapse are mainly along the railway, where the embankment is high. The main geological hazards in non-flood season are special rock and soil hazards, collapse of dangerous rocks in quarries. The special rock and soil hazards happen mostly in the areas along Huai River, including oozy soft clay, expansive soil and liquefaction of sandy soil, the basement composed by this kind of rock and soil will make dangers to buildings, hydraulic engineering, railway and road engineering.


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5 Project Description

5.1 Project Summary

Bengbu Integrated Environment Improvement Project (BIEIP) consists of eight sub-projects, which are summarized in the following table.

Table 19: Summary of BIEIP sub-projects

ComponentSub-project

No.Name of Sub-project Project Composition

Cost Estimation

(million Yuan)

Integrated

Water

Resource

Management

1Tianhe flood control

project

Tianhe stormwater pumping station 65 . 20

2

Longzi Lake flood

control and environment

improvement project

Longzi Lake stormwater pumping

station

87 . 60

Slope improvement and desilting of

Longzi Lake

Urban

Environmental

Infrastructure

Improvement

3

Urban (south of Huai

River) environmental

infrastructure

improvement Project

Stormwater pumping stations and

drainage pipes in old city (including

storm water and wastewater pipes)

341 . 77

Storm water, wastewater and road

projects in Economic Development

District

Storm water projects, wastewater

projects and wastewater lift

pumping station in High-tech Zone

Storm water, wastewater and road

projects in Longzi Lake District

4

Xijiagou & Baligou

environment

improvement project

Improvement of Xijiagou 90 . 98

Improvement of Baligou

5Huaishang District flood

control and urban

Wuxiaojie stormwater pumping

station and related projects

289 . 89


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Cost Estimation

(million Yuan)

environmental

infrastructure

improvement project

Expansion of Xiaobengbu Station

Wangxiaogou ditch

Wangxiaogou pumping station

Road project

Sewage main pipe from Guobei

urban area to Huaishang

Sub-Urban

Environmental

Infrastructure

Improvement

6

Guzhen County

integrated environment

improvement project

Drainage pipes 72 . 44

Embankment

Desilting works

Access road to the top of dyke

New culvert and gate

Newly constructed and

reconstructed pumping stations

New bridges

Protective slope

Non-engineering measures

7

Huaiyuan County


improvement project

Flood drainage canal 71 . 69

Drainage network

Stormwater pumping station

Road and related storm water pipes

8 Wuhe County Mohekou


improvement project

Sanpu stormwater pumping station

and related projects

314

Water supply

Wastewater treatment

Storm water pipes


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Cost Estimation

(million Yuan)

Road project

5.2 Project Quantities of the Proposed Projects

5.2.1 Tianhe Flood Control Project

- Tianhe Storm Drainage PS is located in Qinji township of Yuhui district on the south side of Tianhe Sluice between the slope toe on the south side of Mount Tu and Tianhe production embankment, about 50 m to the south of National Highway No. 206.

- Tianhe Storm Drainage Station is of rear dyke structure and storm water is drained into Huaihe River through the dyke-crossing culvert. It keeps out flood by using the surrounding dyke on the Tianhe River. The pumping station has a design flow of 55m3/s and installed capacity of 4800kw and the design standard for flood control is once in 100 years for the Huaihe River side and once in 20 years for the inner side of Tianhe River.

- The plot area for the project: The construction land for Tianhe storm drainage station is composed of three parts: 1. Land for the station area including the land for the building of the pumping station and land for administration of the pumping station; 2. Land for the borrow area; 3. Land for the construction area. The land for the station area and borrow area is the permanent land with a total area of 20.33 mu and the land for the construction area is temporary land with an area of 1.5 mu.

Table 20: Quantities of main structures for Tianhe storm drainage station

No. Component Size Remarks

1 Intake channel 7.5m long with a section of

3.5×4.5

Design pumping flow of 11m3/s and speed

of 0.7m/s

2 Front pool and

intake pool

20 m long and 45.2-55.2 m

wide

6.8m-high reinforced concrete protective

retaining wall on both sides

3 Main pump house 14.55m long and 26.7m wide Equipped with temperature-lowering

passageway, sewage closure grid trough,

desilting corridor path, two-way crane. The

upper part is the main factory building.


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4 Self-drainage

culvert

37.5m long with 4 holes Located on both sides of the main pump

house and pressure water tank, equipped

with electric hoist and start-stop gear.

5 Discharge channel 13m long with a section of

2.5××3.5

Outlet speed of 1.35m/s

6 Pressure water

tank

11.77m long and 19.4m wide Connected with the body of Tianhe sluice

culvert by stop of water by the separation

joint and discharge water is collected by

five plant units.

7 Secondary factory

building

Three-storied, 30.9m long and

10.3m wide

Located on the top of self-drainage culvert

on the southwest side of the main pump

house with the upper part as the control

storey (central control room); the ground

storey as the distribution cabinet storey ；the first floor underground as the cable

storey.

8 Installation shop 9.40m long and 9.80m wide On the top of self-drainage culvert on the

northeast side of the main pump house,

mainly for installation and inspection of

electromechanicl equipment

9 Transformer

substation

9.25m long and 6.90m wide Situated about 10 m to the southwest of the

main pump station and west of the

secondary factory building.

10 Administration area

of production and

living

Plot area of 1750m2

and floor space of 1000m2

Situated on the northeast side of the pump

station to the east of the installation shop

with an office building, residential quarter

and warehouse.

11 Revetment for

intake channel

10m long with a bottom width

of 55.20m

Side slope on both sides 1∶3, built with

grouted stone.

- The siting of Tianhe storm drainage station is located near Tianhe Sluice. The construction work will be carried out synchronously with the renovation of Tianhe Sluie by combining the sluice with the station and is divided into three parts approximately:

1 ） First of all, a coffer dam will be built within the scope of the site of the pumping station and accumulated water there has to be drained;2 ） Then the foundation pit will be excavated by an excavator and beyond the foundation trough a water-collecting pit is dug and drain ditch is excavated around the trough. The waterlogging in the trough is collected to the pit and drained by a submersible pump to facilitate construction in the foundation pit;


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3 ） After completion of the excavation of the foundation pit, such working procedures as forming, bar rolling, concrete pouring and curing can be carried out;4）After completion of structures, equipment will be installed and debugged; 5 ） After completion of the work, the coffer dam is removed and water is run through.

5.2.2 Longzi Lake Flood Control and Environment Improvement Project

Table 21: Summary of Major Project Quantities of Longzi Lake Sub-project

Content Form and Size Quantities

Desilting of the

South Lake of

Longzi Lake

1. Desilting is done by amphibious

environmentally-friendly desilting machine

and the South lake covers an area of 3.449

million m2 to be divided into 8 sub-areas for

dredging.

2. Along the coast of South Lake 6 sediment

stack yard are set up and the coffer dam is

built with rolled soil with a total plot area of

1.568 million m2.

3. Residual water is precipitated by dosing.

Desilting depth of 0.12-

0.58m and dredging

quantities of 2.2028

million m3.

Repair of side slope

of Longzi Lake

1. It covers the perimeter of the south lake area

and the east embankment of the section from

Shengli Rd. East in the north lake area to

Donghai Avenue.

2. Natural coastline and eco-embankment

should be adopted as much as possible and

for partial section restricted by conditions,

hard engineering embankment is used.

Total length of natural

coastline:13062m, eco-

embankment: 5288m and

hard engineering

embankment: 4107m

Longzihu storm

drainage pumping

station

1. Located at the site of Laozhengjiadu Sluice in

the outlet section of Longzi Lake with rear

dyke structure.

2. Design drainage flow of 40m3/s with a plot

area of 49.33 mu, including the pump station,

self-drainage culvert and administration area.

Earth excavation of

52505m3, spoil volume of

10501 m3 and back-filling

volume of 71843 m3


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5.2.3 Urban (South of Huai River) Environmental Infrastructure Improvement Project

Table 22: Quantities of storm drainage pumping station for the urban project

No. Name of PS Design Capacity and Project Quantities

1Xinchuangtan storm drainage

pumping station

4 new submersible axial pumps with a single set flow of

Q=3.06m3/s,H=5.6m and motor power of 250kw；one existing

submersible axial pump with a flow of Q=3.2m3/s,H=5.6m and

motor power of 310kw. The pump house has a plane size of

16.10×5.3m with a depth of 6.35m.

2 Nanshijia storm drainage

pumping station

3 new submersible axial pumps with a single set flow of

Q=2.11m3/s,H=4.1m and motor power of 155kw ； Now two

submersible axial pumps are available with a flow of

Q=1.85m3/s,H=4.1m and motor power of 155kw. The pump

house has a plane size of 14×4.8m with a depth of 4.5m.

3Zhihuai Rd. storm drainage

pumping station

The corroded concrete is chiseled away completely and then

the original chiseled surface is reinforced with high-strength

concrete. New and old concrete should be mixed well and

haunched corner set up between the wall panel and baseplate.

Finally anticorrosive coatings are applied on the contact

surface between concrete and sewage.

4Yinghu Rd. sewage lifting

pumping station

Two new submersible pumps are added with a single set flow

of 400 L/S, lift of 17.5m and motor power of 110KW. The

existing 500KVA transformewr is changed to 630KVA

transformer.

Table 23: Quantities of Pipe Network for the Urban Project


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No. Project

ContentsProject Capacity and Project Quantities

1

Drainage

pipe in the

old urban

district

(including

storm and

sewage

pipes）

Drainage pipe at Shengli Rd West D900—580m； Drainage pipe at Nanshan

Rd.D900—100m；Drainage pipe at Zhongrong Street D443—180m,D600—135m,D800—286m；Sewage pipe at Zhuizishan Rd.d400 double wall corrugated pipe with a length of

440m；Drainage pipe at Hongqi 2 Rd　D1000—440m,D1500—820m；Drainage pipe at Yongye Rd　D900—512m； Drainage pipe at Changqing Rd.

North D1500—380m；Drainage pipe at Changzheng Rd.D1000—182m,D1200—267m,D1500—254m；Storm pipe at Shengli Rd. East D800—350m,D900—350m,D1200—1270m,D1500

—1583m,D1800—223m；Drainage pipe at Daqing 2 Rd.D2000—400m,D2200—220m；Drainage pipe at Zhucheng Rd. D1200—235m,2D1500—120m,D1500—160m；Drainage pipe at Nanhu Rd.　D1200—1031m；

2

Storm water

project in the

economic

development

zone

Changsheng Rd.(south of Donghai Avenue)D1000—1700m；Longxiang Rd (south

of Donghai Avenue)D1200—1300m；Qiancheng Rd. (south of Donghai Avenue) D1200—1500m；Longwan Rd (south of

Donghai Avenue)D1200—2500m；Longtan Rd (south of Donghai Avenue)D2000—1300m；Longzhu Rd (south of

Donghai Avenue )D1000—1200m；Jinxiu Rd (south of Donghai Avenue)D800—1900m；Huochang 5 Rd. (south of the

old airport) D1500—1350m；Hongqi 1 Rd.(Hanghua Rd-Jiefang Rd)D600—500m；Xuefu Rd, East Section

D1000—500m；Yan’an 2 Road(south of the old airport)D1200—1500m；Huochang 6 Rd.(south of the old airport) D1500—1350；Caoshan Rd (Donghai Avenue – Shengli Rd)D1200—1800m；Hongqi 6 Rd (Hangzhen Rd-Gongnong Rd.)D2000—330m；Yinghu Rd. (Jiefang Rd-Hongye Rd ) Two, D2400—1400m；South section of Hanghua Rd (Huochang 2 Rd – Huochang 5 Rd)D1000—1000m；Yan’an Rd. South (Donghai Avenue – Yanshan Rd)D600-1200—2300m；Bengyi Rd (Shengli Rd- Huangshan Rd)D1200-1500—4000m；Caida Rd ( Donghai Avenue- Huangshan Rd)D900-1500—2300m；Wanghu Rd (Caoshan Rd-Bengyi Rd )D2 m×3m trench cover culvert；

Xianghu Rd (Caoshan Rd-Bengyi Rd ) D800-1300—1400m；


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No. Project


3

Sewage

project in the

economic

development

zone

Changsheng Rd (south of Donghai Avenue )D500—1700m；Longxiang Rd.(south

of Donghai Avenue ) D300—1300m；Qiancheng Rd (south of Donghai Avenue) D350—1500m；Longwan Rd (south of

Donghai Avenue)D400—2500m；Longtan Rd (south of Donghai Avenue) D1000—1300m；Jinxiu Rd (south of

Donghai Avenue) D400—1900m；Huochang 5 Rd. (south of the old airport)D400—1350m；Huochang 6 Rd (south of

the old airport) D400—1350；Caoshan Rd.( Donghai Avenue-Shengli Rd.) D600-900—1800m；East Sectionof

Xuefu Rd. D400—500m；Wanhu Rd. (Caoshan Rd-Bengyi Rd) D400—1400m；Yan’an 2 Road (south of the

old airport ) D400—1500m；Xianghu Rd (Caoshan Rd-Bengyi Rd ) D400—1400m；Longzhu Rd ((south of Donghai Avenue ) D300-800—1200m；

South section of Hanghua Rd (Huochang 2 Rd- Huochang 5 Rd.) D700—1000m；Hongqi 1 Rd (Hanghua Rd- Jiefang Rd.) D400—500m；

Yan’an Rd South (Donghai Avenue – Yanshan Rd) D400—2300m

Bengyi Rd. (Shengli Rd- Huangshan Rd.) D800-900—4000m；

4

Road

building in

the economic

development

zone

Caoshan Rd. 1745.300m long and 35m wide；Yinghu Rd. 1237.000m long and

30m wide；Changsheng Rd, 3684.109m long and 20m wide；Jinxiu Rd 1646.028m long and

30m wide；Longtan Rd. 1941.320m long and 30m wide；Longwan Rd. 1611.738m long and

30m wide；Longxiang Rd. 3268.221m long and 40m wide；Longzhu Rd 4912.845m long and

30m wide；Qiancheng Rd. 419.995m long and 16m wide；


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No. Project


5

Storm water

project in the

new & hi-tech

zone

Drainage at Weier Rd（section from Tianhe Rd to Yinghe River） D1200；Drainage at Huangshan Avenue（section from Tianhe Rd to Yinghe Rive）Pipe

size D2200；Drainage at Xingji Rd（section from Tianhe Rd to Yinghe River）Pipe size

D1500；Drainage at Shanxiang Rd（Weier Rd to Yanshan Rd）；Drainage at Tianhe Rd.（Weier Rd to Yanshan Rd）Pipe size D1500；Drainage at Daqing Rd（Weier Rd to Yanshan Rd）Pipe size D2200；Drainage at Jiahe Rd（Huangshan Avenue to Yanshan Rd） Pipe size D1200；Drainage at Changqing Rd South （Weier Rd to Yanshan Rd） Pipe size D1500；Drainage at Changzheng Rd Soutn （Weier Rd to Yanshan Rd） Pipe size

D1800；

6

Sewage

project in the

new & hi-tech

zone

Drainage at Weier Rd（section from Tianhe Rd to Yinghe River） Pipe size

D1200；Drainage at Huangshan Avenue（section from Tianhe Rd to Yinghe River） Pipe

size D2200；Drainage at Xingji Rd（section from Tianhe Rd to Yinghe River） Pipe size

D1500；Drainage at Shanxiang Rd（Weier Rd to Yanshan Rd）；Drainage at Tianhe Road（Weier Rd to Yanshan Rd） Pipe size D1500；Drainage at Daqing Rd（Weier Rd to Yanshan Rd） Pipe size D2200；Drainage at Jiahe Rd （Huangshan Avenue to Yanshan Rd.） Pipe size D1200；Drainage at Changqing Rd South （Weier Rd to Yanshan Rd） Pipe size D1500；Drainage at Changzheng Rd South （Weier Rd to Yanshan Rd） Pipe size

D1800；

7

Sewage

lifting

pumping

station

Xingjilu sewage pumping station is to be set up at the junction of Jianghuai Rd and

Xingji Rd. in the low-lying area with a near-term capacity of 9300 m3/d and long-

term capactity of 18600 m3/d with a plot area of 1500m2. The discharge pipe of the

pumping station uses pressure pipe of DN600, changed to gravity line of d 800

along Xingji Rd to Daqing Rd and finally connected to the sewage treatment plant

in the south of the city.


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No. Project


8

Storm

project in

Longzihu

District

Drainage at Shengli Rd. East （Outer Ring Rd－Lilou Rd）D2000—1780m；

Drainage at Baota Rd（Lilou Rd－Longshan Rd）D900-360m,

（Longshan Rd－Longjin Rd）D1200-370m,

（Longjin Rd－Laoshan Rd）D1200-560m ；

Drainage at Guxing Rd（Longshan Rd －Laoshan Rd ）D1200-1020m,

　　　（Lilou Rd－Longshan Rd）D900-360m；Drainage at Qiyan Rd（Lilou Rd－Laoshan Rd）D1200-1390m；Drainage at Shiwu Rd（Lilou Rd －Qiyan Rd）D1200-1140m,

　　　　　（Qiyan Rd－Baota Rd）D2000-800m；Donghai Avenue（Outer Ring Rd－Lilou Rd）D2000-2010m；Drainage at Lilou Rd （Shengli Rd. East－Donghai Avenue）D900-1740m；Drainage at Longjin Rd（Shengli Rd. East－Donghai Avenue）D900-1474m；Drainage at Longshan Rd（Shengli Rd. East－Donghai Avenue）D900-1608m；

9

Sewage

project in

Longzihu

District

Drainage at Shengli Rd. East （Outer Ring Rd－Huguang Rd）D600-4780m；Drainage at Baota Rd（Lilou Rd － Longshan Rd）D450-360m,

　　　　　（Longshan Rd－Longjin Rd）D450-370m,

　　　　（Longjin Rd－Laoshan Rd）D600-560m；Drainage at Guxing Rd（Lilou Rd－Laoshan Rd）D450-1380m；Drainage at Qiyan Rd （Lilou Rd－Laoshan Rd）D450-1390m；Drainage at Shiwu Rd （Lilou Rd－Qiyan Rd）D450-1940m；Drainage at Donghai Avenue（Outer Ring Rd－Lilou Rd）D600-2010m；Drainage at Lilou Rd （Shengli Rd. East －Donghai Avenue）D600-1740m；Drainage at Longjin Rd （Shengli Rd. East－Donghai Avenue）D450-1474m；Drainage at Longshan Rd（Shengli Rd. East－Donghai Avenue）D450-1608m；

10

Road

building in

Longzihu

District

Lilou Rd：Urban trunk road of Class II with a design speed of 50km/h and planned

building line of 42m wide

5.2.4 Xijiagou & Baligou Environment Improvement Project

Table 24: Project Quantities of Xijiagou & Baligou Project

Project Contents Form and size Quantities

Xijiagou

project

Connecting

channel

to the right

branch ditch

Rivercourse bottom width of 3.0m with side slope

of 1:2 and water depth of 2.5m

Dredging depth of

0.5m for the section

from Xijiagou

Xingzhong Rd to


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Project Contents Form and size Quantities

Xinghe Rd and the

remaining section

dredging depth of

0.3m.

This project has an

excavation

amount of 557,000 m3

including 33,000 m3 of

dredged silt.

Dredging of the

preceding

section

of rivercourse

and repair of

side slope

1 ． Bottom width of 40m for rivercourse from

Xingzhong Rd to Xinghe Rd with a side slope of

1:2 and water depth of 2.5m ； bottom width of

9.0m for rivercourse from Xinghe Rd to south

outer ring road with a side slope of 1:2 and water

depth of 2.5m.

2．River sediment cleaning length of 5.2 km and

8 mud-removal areas are set on the way.

3．Natural slope of 1:2 from the ditch bottom

to the place with an elevation of 21m for the side

slope of ditch and the surface is protected by

planting grass bricks. At an elevation of 21m a

5.0m-wide walk path is built with concrete

placement. From 21m to 23.5m section, natural

slope is adopted with grass planted on the

surface.

Rubber dam at

Xingzhong Rd60m long

Baligou

project

Rivercourse

dredging

1．Bottom width of 3.0m from Jiangqiao Rd

to Huangshan Rd, bottom width of 6.0m from

Huangshan Rd to Yanshan Rd and bottom width

of 8.0m from Yanshan Rd to Tushan Rd. Side

slope of 1:2 without exception.

2 ． Total dredging length of 3719m with a

thickness of 0.3m.

This project has an

excavation amount of

253,000 cu m including

3347 cu m of dredged

silt.

Side slope

repairing

1. Design flood level of 23.4m。2. Natural slope of 1:2 from the ditch

bottom to an elevation of 21m for the side slope of

ditch and the surface is protected by planting the

grass bricks. At an elevation of 21m a 5.0m-wide

walk path is built with concrete placement. From

21m to 23.5m section, natural slope is adopted

with grass planted on the surface.

Filling of 148,000 cu

m.

Rubber dam at

Xingzhong Rd60m long


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5.2.5 Huaishang District Flood Control and Urban Environmental Infrastructure Improvement Project

Table 25: Major quantities of Huaishang district project

Name of

Component Content Size Quantities

Storm

drainage

PS

Wuxiaojie

storm drainage

pumping station and

Supportive works

Design drainage flow of 80.8m3/s

with installation of five pumps. The

controlled drainage level is16.5m at

the starting point of the diversion

canal （inner side of No.14 culvert ） with a water surface gradient of

1/7500 and canal bottome elevation

of 13.5m. Calculation of the section

of diversion canal：ditch bottom

width of 26m, side slope of 1：2 and

average ditch mouth width of ~40m

Excavation volume

of 528594m3 for

the foundation

pit

Xiaobengbu storm

drainage station

Current pumping flow of 17.1m3/s

Extended pumping flow of

18.19m3/s

Wangxiaogou storm

drainage station

Newly-built with a pumping flow of

16.3m3/s

Diversion canal works

for Wangxiaogou

storm drainage station

Excavation of 3.6 km diversion canal

and broadening of 5.5km dredging

canal. Tempoaray width of the canal

bottom is 10m and longitudinal slope

fall is 1：10000 and at 1.0m above

normal water level a 3.0m-wide

platform is to be built up with 2.0m-

wide concrete road surface.

Excavation volume

of the new

diversion canal is

288000 m3 and the

earth volume of

dredging the

diversion canal is

165000 m3

Road and

bridge

building

Riverside road

（Wuxiaojie –Daqing

Rd. North）

11765m long and 28m wideCrossing the FeiHuai New River bridge, passing through Beijing-Shanghia Railway box culvert downward and crossing Jiefanglu bridge and Chaoyanglu bridge

Daqing Rd. North

（branch road） 500m long and 45m wide

Wuzhong

Rd（branch road）495m long and 40m wide


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Name of

Component Content Size Quantities

Houlou Rd (branch

road） 730m long and 30m wide

Zhengfu Rd East

(branch road） 440m long and 40m wide

Main sewage pipe project from

Guobei urban district to Huaishang

district

Main pressure pipe from Huaiyuan

Industry Park Border to Bengbu No.

3 Sewage Treatment Plant with a

size of DN600 and length of

15000km


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5.2.6 Guzhen County Integrated Environment Improvement Project

Table 26: Project Quantities of Guzhen county project

Name of Project Content Quantities

Embankment

of flood prevention

ditch and dredging

Boundary

Ditch

1．About 1.5 km of section in the current

boundary ditch is filled with reeds, which

are to be removed by excavating a deep

trough of 30 m wide with a bottom elevation

of 16.5 m.

2．Ponds behind the boundary ditch dyke

are to be filled and reinforced.

30,000 m3 of earth from

dredged rivercourse

and 59,500 m3 of earth

for filling the ponds

Wugu River 1．The main ditch section from Sanba

River

~Liuyuan on the right dyke of Wugu River is

reinforced in line with the flood prevention

standard of once in 20 years and the dyke

is designed for superelevation of 1 m, top

width of 6 m and inner and outer side slope

of 1:3. The dyke can be reinforced by

banking by borrowing soil and rolling the

spoil.

2．Four blockoff dams on the river have to

be removed. About 500 m is impeded at

the junction of Wugu River and Wugu

highway and dredging is required.

Dyke length of 3.4 km

with an earth volume of

20,100 m3 from

construction and

30,000m3 from redging.

Maintenance

Squad ditch

1．Dredging length of 5.15 km and

dredged in line with a drainage flow and

water level of once in 5 years.

Dredged earth volume

of 112,000 m3

Total quantities：dyke length of 3.4 km with an earth volume of 20,100 m3, dredged earth volume of 172,000

m3 and filled earth volume of 59,500 m3

Dredging of storm

drainage ditch

Ditches in

Wangsiweizi

Part

Dredging of the ditch west of Liuzhuang

village with a planned bottom width of 4 m,

water depth of 3.5 m, bottom elevation of

16～15 m and side slope of1:2


of 45,000 m3


August 2007

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Ditches in

Sanbahe Part

Dredging of the drainage ditch in the south

of the city, ditch of No.1 Middle School,

Wangnan ditch and Weibei ditch with a

planned bottom width of 2～71 m,water

depth of 1～2.2 m, bottom elevation of 18～15.05 m and side slope of 1:1.5


of 144,800 m3

Dalou Part

Dredging of suburban drainage ditches with

a planned bottom width of 5 m, water depth

of 1.5 m, bottom elevation of 15.18～15 m

and side slope of 1:1.5


of 25,600 m3

Xiaolou Part

Dredging of the diversion canal for Xiaolou

culvert with a planned bottom width of 3 m,

water depth of 2.2 m, bottom elevation of

15 m and side slope of 1:1.5


of 8200 m3

Total quantities：total dredged earth volume of 223,600m3

culvert & sluice

projectYinzhuang

Sluice on

Sanba river

Design capacity is controlled by irrigation with two-way impact

prevention and design flow of 7 m3/s. The sluice is of single hole

structure with a hole width of 3.5 m and base board elevation of 14 m

and bridge building is promoted by sluice.

Wugu River

regulating

structure

Irrigation diversion flow of 5 m3/s, single hole structure with a hole

width of 3 m and base board elevation of 14 m and bridge building is

promoted by sluice. The sluice is located on Wugu River below the

junction with the main ditch in Liuyuan.

Expansion of

the main ditch

culvert in

Liuyuan

To be expanded on the original culvert site with two-hole structure of

4×4 m and culvert base plate elevation of 12.37 m. Design drainage

water level of 17.27 m above the sluice and 17.17 m below the sluice

and design flood prevention water level of 19.42 m

Self-drainage

culvert in

Liuzhuang

village

Drainage area of 5.1 km2 and design drainage flow of 8.3 m3/s with a

reinforced concrete box culvert structure.

Connecting

culvert to

Sanba River

Drainage area of 7.3 km2 1 and design drainage flow of 0.9 m3/s with

a reinforced concrete box culvert structure.


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Dyke-crossing

culvert for the

right dyke of

the main ditch

in Liuyuan

Xulaojia dyke-crossing culvert （size of 1×1.5m）and Longtan dyke-

crossing culvert （size of 1×1.5m）

Dyke-crossing

culvert for the

left and right

dykes of the

boundary ditch

Wangsiweigou dyke-crossing culvert （size of 1×1.5 m）, Zhangqiao

dyke-crossing culvert （size of 2×2 m）and Qizhuang dyke-crossing

culvert （size of 1×1.5 m）.

Storm drainage

pumping station

Guxi storm

drainage

pumping

station

(reinforced and

expanded）

Drainage area of 3.40 km2, drainage flow of 5.24 m3/s, design lift of 4

～5 m and installed capacity of 400 kW. The self-drainage culvert is of

the reinforced concrete box culvert structure.

Installation of 5 vertical axial pumps with one set flow of 1.1 m3/s,

design lift of 4～5 m and supportive motor power of 80 kW.

Xiwei storm

drainage

pumping

station

（newly-built）

Drainage area of 1.82 km2, design flow of 2.71 m3/s, design lift of 4～5

m and installed capacity of 195 kW. Installation of 3 vertical axial

pumps with one set flow of 0.9 m3/s, design lift of 4～5 m and

supportive motor power of 65 kW.

Qizhuang

storm drainage

pumping

station

（newly-built）

Drainage area of 3.7 km2, design flow of 6.0 m3/s, design lift of 4～5 m

and installed capacity of 480 kW;The drainage culvert is of the

reinforced concrete box culvert structure. Installation of 5 vertical axial

pumps with one set flow of 1.2 m3/s, design lift of 4～5 m and


Dalou storm

drainage

pumping

station

（newly-built）

Drainage area of 3.20 km2, design flow of 5.19 m3/s, design lift of 4～5

m and installed capacity of 400 kW. The drainage culvert is of the

reinforced concrete box culvert structure. Installation of 5 vertical

axial pumps with one set flow of 1.1 m3/s, design lift of 4～5 m and



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Xiaolou storm

drainage

pumping

station

Drainage area of 7.8 km2, self-drainage flow of 8.74 m3/s, pumping

flow of 3.51 m3/s,design lift of 4～5 m and installed capacity of 270

kW. Installation of 3 vertical axial pumps with one set flow of 1.2 m3/s,

design lift of 4～5 m and supportive motor power of 90 kW, 270 kW in

all.

Chengnan

storm drainage

pumping

station

Drainage area of 1.3 km2 and drainage flow of 1.95 m3/s. Installation

of 3 vertical axial pumps with one set flow of 0.5 m3/s, design lift of 4～5 m and supportive motor power of 45 kW, 135 kW in all.

Flood prevention

road on top of

dyke

Road on the

left dyke on Hui

River

Cement-concrete surface of the structure of

20cm C30 concrete course, 15cm 6％ cement stabilized crushed stone, 15cm 4％ cement stablized crushed stone and 15cm

Classd broken stone bedding.

8.7 km long and 6 m

wide with an area of

52200 m2

Road

（Damuqiao to

Sanba culvert

）on the right

dyke on Sanba

River

0.8 km long and 6 m

wide with a road area

of 4800 m2

Road for the

main ditch in

Liuyuan

2.62 km long and 4.5 m

wide with an area of

11790 m2

Total quantities：road length of 12.12 km and width of 4.5～6 m with an area of 68790 m2

Slope protection and greening

project

Revetments for the left dyke on Hui River,

Sanba River, boundary ditch, railway canal

and main ditch in Liuyuan, greening of

Sanba River and revetment and greening

for other ditches and ponds.

Bridges25 bridges including Linggu highway

bridge, Wuguhe traffic bridge and so on.


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Urban drainage

pipeline

（culvert）

Main sewage

pipe at Guyang

Rd

To be laid along Guyang Rd from west to

east, and at Dongfeng Rd to be laid along it

southward to Daying Rd. The main pipe

starts near Guzhen Technical Supervision

Station and ends at the junction of Daying

Rd and Hui Rd. The pipe size is d1000.

2600 m long

Sewage pipe at

Daying Rd

To be laid along Daying Rd and starts at

Hui Rd and ends at Hui Rd with a pipe size

of d1200.

1100 m long

Main pipe from

the east bank

of Sanba River

to the sewage

treatment plant

To be laid along the planned road on the

east bank of Sanba River and north bank of

Hui River, starting at the sewage lifting

pumping station on the east bank of Sanba

River and ending at the sewage lifting

pump house of the sewage treatment plant

with a pipe size of 1500

2500 m long

Sewage

closure pipeline

at Shengli Rd

To be laid along Shengli Rd and Miaogang

Rd and an intercepting well is set up near

Guzhen No.2 Primary School to intercept

the sewage on Shengli Rd to make it join

the sewage closure pipeline on Guyang Rd

from south to north with a pipe size of d500

1200 m long

Drainage pipe

from the Party

School to the

Oil Factory

Dormitory and

Qinghua Rd.

Current drainage pipe is damaged seriously

and calls for renovation into a combined

sewer with a pipe size of d600.

900 m long

Drainage pipe

from the

Telecom

Bureau to the

Soy Sauce

Factory

A combined sewer starting at the Telecom

Bureau and ending at the Soy Sauce

Factory with a pipe size of d800～d2000

450 m long


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Drainage pipe

at Guyang Rd

A combined sewer starting near Jiaoyuan

and ending at the east bank of Sanba River

with a pipe size of d600~d1200

1200 m long

New drainage

pipe from

Huangyuan Rd

South to Laojie

A drainage box culvert starting at

Huangyuan Rd South, passing through

Laojie and ending at the Soy Sauce

Factory to Sanba River with a pie size of

d600~d1200

1000 m long

Concrete

square culvert

from the Soy

Sauce Factory

to the west

bank of Sanba

River

A combined box culvert starting at the Soy

Sauce Factory and ending at the west bank

of Sanba River with a size of 3.5 w ×5 m h,

mainly to drain the storm water in the south

of Guzhen county seat. An intercepting well

is set up at the end of the box culvert to

intercept the dry flow sewage and first rain

runoff to the main sewage closure pipeline

on the east bank of Sanba River.

1900 m long

Total quantities：Pipe（culvert）length of 12850 m

5.2.7 Huaiyuan County Integrated Environment Improvement Project

Table 27: Quantities of Huaiyuan county project

Category

of project Content Quantities

Drainage

pipe netw

ork

project

Improvement of pipe net

work

Lizuizi drainag

e pipe network

D1350—200m；D1500—553m；D1800—80m

Langanqiao dr

ainage pipe ne

twork

D1500—2022m；D2000—340m；D2200—405m

Xinzhuangzi dr

ainage pipe ne

twork

D1200—435m；D1800—535m；D2000—545m；D2200—600 m

4000×2200—400 m

Flood disc

harge ditc

h project

Desilting of TCMH bond Treatment area of 4393 m2；desilting amount of 6600 m3；side

slope revetment area of 670m2；450 m3 of stone for raising the

overflow dam；vegetation restoration area of 400 m2


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Category


Desilting of Camel

Ridge pond

Treatment area of 10311 m2；desilting amount of 16000 m3；side

slope revetment area of 900m2； 620m3 of stone for raising the

overflow dam；vegetation restoration area of 600 m2

Three flood discharge

ditches in Langanqiao

drainage system

One mountain foot flood

discharge ditch in

Zhuangzi drainage

system

Broadening and desilting of ditches and ponds and repairing of

damaged drainage ditch section, construction of additional low

overflow weir with discharge holes at the bottom. Treatment length

of 1680 m

Storm

drainage

pumping

station

project

Construction of Lizuizi

pumping station

Catchment area of 80.4ha；pumping flow of m3/s；Main buildings

cover head gate, front pool and intake pool, pump house, pressure

water tank, dyke-crossing culvert and discharge channel.

Expansion of

Xinzhuangzi pumping

station

Catchment area of 437.9ha；pumping flow of 13.57 m3/s；Main

buildings cover head gate, front pool and intake pool, pump house,

pressure water tank and so on.

Grain and

edible oil

processin

g base

Road building：Weiyi Rd, Weier

Rd.,Weisan Rd, Weisi

Rd, Changsheng Rd,

Fuqian Avenue and

Jiankang Rd will be

built with a total length

of 8580m.

Rd section Length

Width of

building

line

AreaPlot

area Use of road

Fuqian Av

enue 1850 38 70300 105.5 Urban life

Weiyi Rd 1100 25 27500 41.3Sec. trunk road in the

Park

Weier Rd 1100 30 33000 49.5Sec. trunk road in the

Park

Weisan R

d1080 20 21600 32.4

Sec. trunk road in the

Park

Weisi Rd 1050 25 26250 39.4Branch road in the

Park

Changshe

ng Rd 1300 20 26000 39.0

Branch road in the

Park

Jiankang

Rd 1100 36 39600 59.4

Sec. trunk road in the

city

Traveling speed of 40 km/h for secondary trunk road of Class II in

the city and 30 km/h for urban branch road of Class II；Lane width ： two-way four-lane road ； clear height of traveling

lane：not less than 5.5m；Clear height of non-motor vehicle and sidewalk ： not less than

3.5m


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Category


Storm water pipe

network project：Catchment area of 100

ha for the grain and

edible oil processing

base

（including urban road

）

Design flow of 4.80m3/s, the section of the main pipe at the exit of

the system is d1800m and the pipe will go through Jiankangshan

Rd and join the storm drainage system in the paper mill area. The

storm and sewage pipe network will be laid along the supportive

road.

D800—3940 m；D900—578m；D1000—1419m；D1200—1512m；D1500—266m；D1800—509m；

5.2.8 Wuhe County Mohekou Integrated Environment Improvement Project

Table 28: Project Quantities of Mohekou Project

Name of

projectContent Capacity Quantities

Dredging of

the Sanpu

Canal,

Sanpuhu

Wuxiaojie storm

drainage pumping

station and supportive

works

Design flow of 50 m3/s and total

installed capacity of 6250KW

Excavation volume

of 554265m3 for

the

foundation pit


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Name of


storm

drainage

PS and

supportive

buildings

Dredging of canal and

supportive buildings

Sanpu canal ： ① from Wubeng

highway to the entrance to Mochong

approach river with a length of 3.80k,

design ditch bottom width of 17.0m,

side slope of 1:2, base elevation of

12.0m ； ② from the junction of

Mochong approach river and Sanpu

canal to Sanpuhu storm drainage

station with a length of 0.6km,

design ditch bottom width of 27.0m,

side slope of 1:2 and ditch base

elevation of 12.0m.

Mochong approach river ： ① from

Duanzhuang gate to Songwei Rd

with a length of 3.6km, design ditch

bottom width of 8.0m, side slope of

1:2 and base elevation of 12.0m；② From Songwei Rd to Sanpu canal

with a length of 4.02km, design ditch

bottom width of 15.0m, side slope of

1:2 and base elevation of 12.0m.

Six supportive bridges will be built.

Excavation volume

of 123,500 m3 for

Sanpu canal；Excavation volume

of 327,100 m3 for

Mochong

approach river

canal

Surface water

plant

Factory area works

Near-term capacity of 30,000m3/d

and long-term capacity of 100,000

m3/d

Supportive water

supply pipe network

Main water supply pipes will be laid

along Hanmo Rd and Wubeng Rd.

DN200：505 m；DN300：5991m；DN400：4313m；DN500：400m；DN600：674m；DN700：2364m.

Water intake pipe

network project

Two d700 steel cylinder reinforced

concrete bars with a single pipe

length of 17km

Sewage

treatment plant

Factory area works20,000m3/d for the near-term and

60,000 m3/d for the long-term

Supportive drainage

pipe network project

DN300：8990m；DN400：4535m；DN500：1615m；DN600：3835m；DN800：595m；DN1000：2370m；DN1000：1800m


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Name of


Road building

in Mohekou

town and

Industry Park

Yinhexi Rd 2000m×9m

Hongmiao Rd 2000×7m

Jingyi Rd 2200×9m

Zhongxin Rd 2100×7m

Yimin Rd 2600×7m

Yinhenan Rd 2000×7m

5.3 Analysis of Project Pollution Sources

5.3.1 Construction Period

The factors that affect water environment are the wastewater from construction works, seepage water from the foundation pit and desilting, and domestic water from construction workers.

The main elements that influence the atmospheric environment comprise floating dust, waste gas from fuel and odor from the sediment stack yard. The influence distance of the construction stackyard is 150m while that of road and floating dust is 35~40m. The odour emitted in pond desilting and transport of sediment will exert a great effect upon the environment. In this project dredging and excavation of ditches and ponds will give off a strong odour ； it will reach an intensity of Class II beyond 30 m with a slight odor, lower than the limit level of odor intensity （Class 2.5-3.5）and largely odorless beyond 50 m. The effect on the acoustic environment is exerted by the construction machinery and vehicles to and fro. If the outgoing noise at the boundary of construction site meets the standard of Noise Limits for Construction Site, the diurnal average noise influence distance during the construction period is 100m, but it will reach 350m in the pile driving stage.

The contaminated silt cleaned from the surface is carried to the sanitary landfill and filled there and the intermediate and bottom layer of the dredged silt can be utilized for afforestation and depression treatment. Before reutilization the sediment should undergo soil environmental and quality monitoring section by section. The building waste should be removed in time and the construction site should be cleaned when work is over. Stacking in situ is strictly prohibited.

The effect upon ecological environment is revealed in such aspects as land acquisition, soil erosion and influence on living things.

5.3.2 Operation Period


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5.3.2.1 WTP Project

In the operation period the main pollution source comprises solid wastes （ including sludge and domestic garbage ） , noise from the pump house and domestic sewage in the factory area.

The main pollutants in the domestic sewage in the water purification plant cover SS, BOD5, ammonia nitrogen, phosphate, COD and animal and plant oil.

The desilted sewage produced in the sedimentation tank and anti-flush sewage produced in the anti-flush filter are discharged into the newly-built sludge concentration tank in the factory area completely （ moisture content of 99% ） and the condensed sludge （moisture content of 97%） will be turned into sludge cake after dewatering through the press filter in the dewaterer room （moisture content of 80% ） before shipment while the supernatant of the sludge and the filtrate in the dewaterer room are returned to the absorption well for mixed treatment with the source water.

In the normal operation of the water purification plant no waste gas will be produced and only in abnormal condition will the chlorine cylinder leak.

In the water purification plant mechanical noise will come from the blower room and pump house respectively. The noise source level is 80~90 dB(A).

Solid waste mainly includes domestic garbage from workers and staff, production sludge and packing materials for dosing.

5.3.2.2 WWTP Project

During the operation period of the sewage treatment plant the main pollution source comprises solid wastes （including residual sludge, grille slags and sand）, noise, domestic sewage in the factory area and odor.

Wastewater includes tail water discharged from the sewage treatment plant and domestic water in the factory area. The latter is directly discharged into the admission pumping station.

The odor emission facilities in the sewage treatment plant mainly cover the grille, admission pumping station, sand tank, bio-reaction tank, sludge concentration tank and sludge dewaterer room. In most cases unorganized emission is adopted. The characteristic odorous pollutants are H2S and NH3.

The major noise source in the sewage treatment plant is the mechanical powe-operated equipment like pumps and blowers.

Of the solid waste, coarse grille slag, fine grille slag and sand are produced in a small quantity and the major solid waste is the mud cake, which is made of


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residual sludge discharged from the secondary settling tank after concentration and dewatering.

5.3.2.3 Roads

After the roads in the Industry Park are open to traffic, the main pollution comes from the tail gas emitted from cars, noise made by the vehicles to and fro and pollution caused by storm runoff on the road surface.

After the road is built, the main atmospheric pollutant is tail gas from cars, which is mainly composed of hydrocarbons, NOx and CO. The spread of pollutants produced by the tail gas in the air will affect the atomospheric environment along the road. Its scope of influence is also related to the wind velocity, direction, air pressure and stability in the area apart from the traffic volume.

The effect of traffic noise is featured by linear pollution, continuity and phase and its scope of influence is related to traffic volume, current noise conditions and the standards of diurnal and nocturnal sound environment.

The pollutant concentration and discharge volume in the road storm water have something to do with the flow and type of motor vehicles in travel, rainfall intensity, cycle, road quality and fuel property, which is difficult to estimate as a rule. By analogy it is known that the pollutant concentration in the road storm water will experience a change from high to low value and will be decreased progressively after reaching the maximum value in 0～15 minutes and incline to be steady one hour after the rainfall.

5.3.2.4 Storm Drainage Pumping Stations

In this project the solid waste is divided into two parts, namely, production waste and domestic garbage from workers and staff. In the operation of storm drainage station a given quantity of waste residue will be generated as pollutant grille and cleaning device are mounted at the admission inlet to intercept leaves, branches, waterweeds, fiber, rubber, plastics and other solid floatage in the current.


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6 Investigation & Assessment for the Current

Situation of Project Sites

To get a full understanding of the status quo of environmental quality at the project construction site, in this environmental impact evaluation, full use is made of routine monitored data available while special project monitoring is carried out for the content of the project and major environmental factors.

6.1 Air Quality

6.1.1 Bengbu Urban Area

In this environmental evaluation report for the status quo of the air quality, routine monitored air data provided by the environmental monitoring station is chiefly used and for special points, historical monitored data are selected for reference.

6.1.1.1 Routine monitoring results of the urban area

In Bengbu city, there are three sites for air quality monitoring at theWorker’s Sanatorium, Department Store Building and No.2 Water Works monitoring point, which represents the environmental quality of the cultural and educational area, mixed business and living area and industrial area respectively and the environmental assessment will make an evaluation of the overall air quality of the urban area in Bengbu in line with the monitored data in the Report of Environmental Quality in Bengbu in 2005.

Table 29: Statistics of Monitored Data on Air Quality in Bengbu in 2005

Unit:mg/m3

Mornitoring Item

Mornitoring Site

Worker‘s

Sanatorium

Department

Store

No.2 Water

Works

Average of

the City

Sulfur dioxide

Class II

Standard Value

Annual mean

Scope of

monitored value

0.022～0.045 0.013～0.029 0.027～0.062 0.023～0.042

Excess standard

rate %

0 0 0 0


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0.06

Annual mean 0.034 0.021 0.047 0.034

Nitrogen dioxide

Class II

Standard Annual

mean

0.08

Scope of

monitored value

0.029～0.043 0.029～0.061 0.043～0.062 0.036～0.052

Excess standard

rate %

0 0 0 0

Annual mean 0.036 0.040 0.052 0.043

Inhaleable

particles

Class II

Standard

Annual mean

0.10

Scope of

monitored value

0.054～0.082 0.052～0.067 0.058～0.089 0.055～0.079

Excess standard

rate %

1.6 0.6 2.8 1.6

Annual mean 0.069 0.062 0.079 0.070

Table 30: Statistics of Comprehensive Pollutant Indicators of Major Pollutants at Each Monitoring Site in 2005

Site

Item

Worker‘s Sanatorium Department Store No.2 Water Works

Pollution

Load

Sub-index

Pollution

Load

Factor

Pollution

Load

Sub-index

Pollution

Load

Factor

Pollution

Load

Sub-index

Pollution

Load

Factor

Sulfur dioxide0.57 0.33 0.35 0.24 0.78 0.36

Nitrogen

dioxide0.45 0.26 0.50 0.34 0.62 0.28

Inhaleable

particles0.69 0.40 0.62 0.42 0.79 0.36

Comprehensive

Pollutant

Indicators

1.71 1.47 2.19

It can be seen from the above table that the annual mean of air quality in Bengbu city has met the standard for Class II in the Ambient Air Quality Standard, of which sulfur dioxide has not exceeded the standard, but nitrogen dioxide and inhaleable particles have exceeded the standard, especially the inhaleable particles have


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exceeded the standard greatly and concentrated in the fourth quarter, which is somewhat related to the dust precipitation intensity and heating by firing coal in winter in Bengbu area. Of the air quality indicators nitrogen dioxide exceeded the standard to a less extent, but the stipulated standard has been exceeded all the year round, indicating the tail gas pollution from the traffic has become a glaring problem day by day and it is necessary to intensify management and control over the pollution by road traffic and tail gas.

6.1.1.2 Historical Monitoring Data For Tianhe Lake

For the routine air quality monitoring around Tianhe there are two sites, one is near Laoguanxu at Heihu Mount and the other is in the Tianhe Fishery. The indicators cover TSP, PM10, SO2 and NO2.

Current situation of air quality on the construction site is evaluated by the single factor index method.

Where Ci——Daily or annual mean concentration of a given pollutant Si—— Daily or annual mean concentration standard of a given pollutant

Pi——Sub-index of a given pollutant

For monitoring results and assessment, refer to the following table.

Table 31: Air Quality Monitoring and Assessment around Tianhe in 2005

Unit：mg/m3

Item

Laoguanxu at Heihu Mount Tianhe Fishery (GB3095-1996)

Class II, daily

mean

Scope of

monitored

value

Daily

mean

Single

factor

index Pi

Scope of

monitored

value

Daily

mean

Single

factor

index Pi

SO2 0.005~0.095 0.017 0.11 0.005~0.054 0.010 0.07 0.15

NO2 0.005~0.098 0.035 0.29 0.011~0.094 0.043 0.36 0.12

PM10 0.044~0.217 0.121 0.81 0.034~0.087 0.053 0.35 0.15

TSP 0.099~0.404 0.241 0.80 0.069~0.122 0.081 0.27 0.30

It can be seen from the above statistics that air quality in Tianhe area and its northern hilly land is good and can meet the standard for Class II set out in


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GB3095-1996----Ambient Air Quality Standard, of which air quality around Tianhe is more superior to that in Heihu Mount area, which mainly benefits from the dust precipitation in the Tianhe water area；The atomospheric pollution indicators near Heihu Mount are based on PM10 and TSP primarily, indicating air quality in the area is affected by the floating dust seriously, which is closely related to the bared rock, thinned vegetation and soil erosion due to quarrying in the Heihu Mount.

6.1.2 Monitoring Data of Three Counties

As no routine air monitoring points are available in the three counties of Huaiyuan, Guzhen and Wuhe, historical monitored data provided by the local environmental protection bureau are used in this environmental evaluation.

6.1.2.1 Wuhe County

（1）Establishment of monitoring sitesThe prevailing wind direction in Bengbu all the year round is the north-east wind by east. In this evaluation three air sampling and monitoring sites are to be set up in line with the zoning of regional environmental functions, meteorological conditions and Class of air quality assessment for the construction project.

（2）Monitoring items TSP, SO2 and NO2 are the items to be monitored in this evaluation.

（3）Monitoring frequency and method From June 26 to 30, 2006, Bengbu City Environmental Monitoring Station conducted air quality monitoring in the locality for five days running and simultaneously monitored meteoroloigical parameters. Of these SO2 and NO2 were sampled for not less than 18 hours each day and TSP was sampled for not less than 12 hours each day. The atmospheric sampling method followed the Technical Specifications of Environmental Monitoring （Part of Atmosphere）For meteorological paramenters under atmospheric monitoring, refer to the table below.

Table 32: Record of Meteorological Parameters for Air Quality Monitoring for Wuhe Project

DateTemperature（

℃）Atomospheric

pressure（Hpa

）Wind direction Velocity （m/s）

Jun.26, 2006 18.8 1003.1 EN 4.5

Jun.27, 2006 20.8 1003.2 WN 4.0


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Jun.28, 2006 20.8 1004.2 WN 4.9

Jun.29, 2006 24.4 1002.1 WS 1.5

Jun.30, 2006 28.0 1001.5 WS 1.4

（4）Monitoring results Analytical method adopted that specified in Table 2 of the Ambient Air Quality Standard（GB3095-1996）. Results are shown in the following table.

Table 33: Statistics of Air Quality Monitoring for the Wuhe Project

Sampling

locationMonitored on SO2 NO2 TSP

By 1# Sanpu

ditch and

expressway

Jun.26, 2006 0.009 0.006 0.042

Jun.27, 2006 ＜0.005 0.022 0.046

Jun.28, 2006 0.006 0.009 0.177

Jun.29, 2006 ＜0.005 0.009 0.084

Jun.30, 2006 ＜0.005 0.068 0.212

2#

Xiaolizhuang

Jun.26, 2006 ＜0.005 0.010 0.022

Jun.27, 2006 ＜0.005 0.010 0.100

Jun.28, 2006 ＜0.005 0.014 0.140

Jun.29, 2006 ＜0.005 0.014 0.361

Jun.30, 2006 ＜0.005 0.027 0.079

3# Zhujia

Jun.26, 2006 ＜0.005 0.029 0.066

Jun.27, 2006 0.029 0.010 0.170

Jun.28, 2006 ＜0.005 0.035 0.110

Jun.29, 2006 ＜0.005 0.026 0.102

Jun.30, 2006 ＜0.005 ＜0.003 0.095

（5）Evaluation resultsFor evaluation results of air quality around the construction site of Wuhe county project, refer to the following table.


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Table 34: Results of Air Quality Assessment

Sampling

locationMonitored on

Identification

index Ii (SO2)

Identification

index Ii (NO2)

Identification

index Ii (TSP)

By 1#

Sanpu ditch

and

expressway

Jun.26, 2006 0.06 0.05 0.14

Jun.27, 2006 0.03 0.18 0.15

Jun.28, 2006 0.04 0.08 0.59

Jun.29, 2006 0.03 0.08 0.28

Jun.30, 2006 0.03 0.57 0.71

2#

Xiaolizhuan

g

Jun.26, 2006 0.03 0.08 0.07

Jun.27, 2006 0.03 0.08 0.33

Jun.28, 2006 0.03 0.12 0.47

Jun.29, 2006 0.03 0.12 1.20

Jun.30, 2006 0.03 0.23 0.26

3# Zhujia

Jun.26, 2006 0.03 0.24 0.22

Jun.27, 2006 0.19 0.08 0.57

Jun.28, 2006 0.03 0.29 0.37

Jun.29, 2006 0.03 0.22 0.34

Jun.30, 2006 0.03 0.03 0.32

It can be seen from the above table that except for TSP that exceeded the standard once on June 29 at 2# site, the factor of pollutant evaluation at the monitoring site is less than 1. Overall it is thought that the current situation of air quality for the project complies with Class II standard of GB3095-1996.

6.1.2.2 Huaiyuan County

In the present environmental evaluation ， the current situation of regional environmental quality in the Huaiyuan county seat is assessed in line with the routine monitored data provided by Huaiyuan County Environmental Protection Bureau.

（ 1 ） Monitoring site: The monitoring site of atmospheric environment is located in the new county government yard.


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（2）Monitoring items: TSP, SO2 and NO2.（3）Results of monitoring and assessment

Table 35 shows the routine monitored data and results of assessment at the monitoring site.

Table 35: Results of Air Quality Assessment

TSP( mg/m3) SO2( mg/m3) NO2( mg/m3)

Monitored data（daily mean） 0.169 0.005 0.017

Central urban area（Class AreaⅡ ）Ii 0.56 0.33 0.14

Cereal & edible oil processing base

（Class AreaⅢ ）Ii

0.34 0.02 0.14

Jingshan area （Class AreaⅠ ）Ii 1.4 0.1 0.21

From the monitoring data above it can be seen that the TSP, SO2 and NO2 concentrations of the central urban area and the Food Processing Park of Huaiyuan in 2004 has reached the control requirements of the functional zones; The SO2 and NO2 concentrations of Jingshan Area are compliant with the requirements of functional zones, but the TSP concentration could not meet the requirement, which is related to the rock exposure and soil erosion due to the destroy of ground surface vegetation for mountain exploitation activities.

6.2 Surface water quality

In evaluating the status quo of surface water environment at the project construction site, the monitored data to be used come from the three channels as follows:

（ 1 ） For lakes and rivers with functions of water body, routine monitored data provided by the environmental protection bureau are used without exception;

（ 2 ） For the rivercourse and water body without routine monitored data, historical monitored data provided by the environmental protection bureau are used;

（ 3 ） For ditches and canals with neither routine monitored data nor historical monitored information, special monitoring will be conducted in line with the actual requirements.

6.2.1 Evaluation methods


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Surface water quality is evaluated by using the single standard index formula as follows：

Si,j=Ci,j/CsiWhere Ci,j――Monitoring value of pollutant i at site j,mg/L；

Csi――Limited value of pollutant i for evaluation standard, mg/L；Si,j――Standard index of pollutant i.

Standard index of DO：

Where SDOj――standard index of DO；DOf――concentration of saturated dissolved oxygen at a given water

temperature and atmospheric pressure,mg/L；DOj――monitored value of dissolved oxygen,mg/L；DOs――Limited value of dissolved oxygen for evaluation

standard,mg/L。

Standard index of pH：

Where SpHj――standard index of pH； pHj――monitored value of pH；

pHsd――lower range value of pH in the evaluation standard；pHsu――upper range value of pH in the evaluation standard.

6.2.2 Current Situation of Water Quality in the Major Rivers

6.2.2.1 Huaihe River

Water quality in the Huaihe River around the construction site is evaluated in line with the results of routine water quality monitored sections in 2006 offered by Bengbu City Environmental Monitoring Station.


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Monitored sections：section below the Bengbu sluice in the Bengpu section of the Huaihe River；section below the Xintie Bridge in the Bengpu section of the Huaihe River and monitored section at the Mohe river mouth.

Monitored indicators ： pH value, DO, permanganate index, BOD5, ammonia nitrogen, petroleum, volatile phenols, chemical oxygen demand, Fecal coliform and E. coli, phosphate and nitrogen.

Monitoring results are shown in the table below.

Table 36: Results of Routine Water Quality Monitoring in the Huaihe River

Unit：mg/L（except pH）

IndicatorSection below Bengbu sluice Section below Xintie bridge Section at Mohe river mouth GB3838-2002

Class ⅢMax. Min. Mean Max. Min. Mean Max. Min. Mean

pH 8.14 7.3 7.72 8.08 7.43 7.72 7.95 7.47 7.72 6~9

DO 9.61 2.22 6.67 9.53 2.03 5.94 9.64 3.78 6.04 ≥5

Index of

permanganat

e

5.82 3.13 3.93 6.13 3.36 4.16 5.90 3.25 4.14 ≤6

BOD5 3.06 2.15 2.49 3.24 2.64 2.85 3.19 2.63 2.89 ≤4

Ammonia

nitrogen2.475 0.069 0.911 2.963 0.076 1.050 2.483 0.209 1.045 ≤1.0

Petroleum 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 ≤0.05

Volatile

phenols0.0010 0.0010 0.0010 0.0030 0.0010 0.0015 0.0020 0.0010 0.0013 ≤0.005

Mercury 0.000010.00000

50.00001 0.00001

0.00000

50.00001 0.00001

0.00000

50.00001 ≤0.0001

Lead 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 ≤0.05

Cadmium 0.0025 0.0025 0.0025 0.0025 0.0025 0.0025 0.0025 0.0025 0.0025 ≤0.005

Water quality at the Bengbu section of the Huaihe River is evaluated by using the single standard index formula and the results are shown in the following table.

Table 37: Single Factor Evaluation of Annual Mean of Water Quality in the Bengbu Section of the Huaihe River in 2006


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IndicatorSection below

Bengbu sluice

Section below Xintie

bridge

Section at Mohe River

mouth

pH 0.36 0.36 0.36

DO 0.59 0.77 0.74

Index of permanganate 0.66 0.69 0.69

BOD5 0.62 0.71 0.72

Ammonia nitrogen 0.91 1.05 1.05

Petroleum 0.20 0.20 0.20

Volatile phenols 0.20 0.30 0.26

Chemical oxygen demand 0.91 0.98 0.93

Fecal coliform and E coli 0.54 10.03 9.77

Phosphate 0.70 0.79 0.82

Nitrogen 2.15 2.61 2.40

It can be seen from the table that in 2006 nitrogen for the whole Bengbu section of the Huaihe River exceeded the standard by 1.15~1.61 folds. The Fecal coliform and E. coli for Xintie bridge and Mohe river mouth sections exceeded the standard by 8.77~9.03 folds. Ammonia nitrogen for the Xintie Bridge and Mohe River mouth sections exceeded the standard slightly by 0.05 fold. The annual mean of other indicators can meet the requirements for Class III in the Environmental Quality Standards for Surface Water (GB3838-2002).

6.2.2.2 Tianhe River

The routine monitored data on the water quality in the Tianhe River in 2006 provided by Bengbu City Environmental Monitoring Station are shown in the table below.

Table 38: Routine monitoring of water quality in Tianhe River in 2006

Unit：mg/L (except pH)


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Indicator pH DO CODMn BOD5

Ammonia

nitrogenPhosphate

NitrogenPetroleum

Fecal

coliform

and E.

coli.

pc./L

North of

Tianhe River7.97 6.88 4.32 2.68 0.108 0.68 0.0025 0.07 125

South of

Tianhe River8.03 6.18 4.14 2.40 0.051 0.37 0.0025 0.09 50

Class Ⅲ,

GB3838-20026-9 5 6 4 1 0.05 1.0 0.05 10000

Water quality at the Bengbu section of the Huaihe River is evaluated by using the single standard index formula and the results are shown in the following table.

Table 39: Single factor evaluation of water quality in Tianhe River

Unit：mg/L (except pH)

Indicator pH DO CODMn BOD5

Ammonia

nitrogenPhosphate Nitrogen Petroleum

Fecal

coliform

and E.

coli. pc./L

North of

Tianhe

River

0.49 0.54 0.72 0.67 0.11 13.60 0.0025 1.40 0.013

South of

Tianhe

River

0.52 0.71 0.69 0.60 0.05 7.40 0.0025 1.80 0.005

It can be seen from the data in the table that the current water quality in Tianhe River can basically satisfy the requirements for Class III in the Environmental Quality Standards for Surface Water (GB3838-2002) , of which phosphate and petroleum have exceeded the standard, indicating eutrophication of the Tianhe River has occurred to some extent and the cause for exceeding the standard lies in over-reproduction of aquatic plants in the Tianhe river basin, but the widespread pollution from the overuse of fertilizers and pesticides in rural area also exerted a great effect upon water quality and the fact that petroleum exceeded the standard may be related to the discharge of domestic water from the villages along the Tianhe River. On the whole water quality of the South of


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Tianhe River is slightly better than that of the North Tianhe River because villages in the north of Tianhe River are concentrated and artificial fish ponds are numerous.

6.2.2.3 Longzi Lake

The water quality monitoring results at the four sites, namely, Longzi Lake Worker’s Sanatorium, Qiuqiao Village, Mid-lake and Outlet of Longzi Lake to the Huaihe River are shown in the table below.

Table 40: Water quality monitoring in Longzi Lake

Unit：mg/L (pH dimensionless)

Site Time pH DO CODcr BOD5

Ammonia

nitrogenPhosphate Nitrogen Arsenic Cr6+ Mercury

Worker’s

Sanatorium

12.20 8.07 6.41 26.4 6.34 0.358 0.20 2.58 3.87×10-3 <0.004 <1×10-5

12.21 8.00 6.74 25.5 6.24 0.324 0.22 2.35 4.17×10-3 <0.004 <1×10-5

Mean 8.03 6.58 25.9 6.29 0.341 0.21 2.47 4.02×10-3 <0.004 <1×10-5

Qiuqiao

Village

12.20 7.84 6.57 25.1 5.87 0.204 0.27 1.64 1.000×10-2 <0.004 <1×10-5

12.21 7.56 6.69 23.6 5.65 0.257 0.24 1.24 1.047×10-2 <0.004 <1×10-5

Mean 7.60 6.63 24.4 5.76 0.231 0.25 1.44 1.024×10-2 <0.004 <1×10-5

Mid-lake

12.20 8.21 6.25 29.0 5.41 0.587 0.34 2.47 2.48×10-3 <0.004 <1×10-5

12.21 8.31 6.21 27.1 5.24 0.524 0.31 2.87 2.94×10-3 <0.004 <1×10-5

Mean 8.24 6.23 28.1 5.33 0.556 0.32 2.67 2.71×10-3 <0.004 <1×10-5

Outlet to

Huaihe

River

12.20 8.29 6.89 34.5 6.67 0.677 0.44 3.49 4.80×10-3 <0.004 <1×10-5

12.21 8.31 6.44 30.4 6.48 0.605 0.42 3.77 4.30×10-3 <0.004 <1×10-5

Mean 8.30 6.67 32.5 6.58 0.641 0.43 3.63 4.55×10-3 <0.004 <1×10-5

Water quality in Longzhi Lake is evaluated by using the single standard index formula based on the mean of Longzi Lake water quality within the moniotoring time set out in Table 5-2-5 and the results are indicated in the following table.

Table 41: Single Factor Evaluation of Water Quality in Longzi Lake

Monitoring Site pH DO CODcr BOD5 Ammonia Phosphate Nitrogen Arsenic Cr6+ Mercury


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nitrogen

Worker’s

Sanatorium0.52 0.61 1.30 1.57 0.34 4.2 2.47 0.08 0.04 0.05

Qiuqiao Village 0.30 0.60 1.22 1.44 0.23 5.0 1.44 0.20 0.04 0.05

Mid-lake 0.62 0.70 1.40 1.33 0.56 6.4 2.67 0.05 0.04 0.05

Outlet to Huaihe

River0.65 0.59 1.62 1.64 0.64 8.6 3.63 0.09 0.04 0.05

From the single factor evaluation in the table it can be seen that of the water quality indicators of Longzi Lake, none of CODcr, BOD5, phosphate and nitrogen can meet the requirements for Class III in the Environmental Quality Standards for Surface Water（GB3838-2002）, of which nitrogen exceeded the standard by 0.44～2.63 fold, phosphate by 3.2～7.6 folds,CODcr by 0.22～0.62 fold,BOD5 by 0.33～0.64 fold, but other indicators could satisfy the requirements, indicating the main trouble lies in the high nutrient salt content in the Longzi Lake and eutrophication of the water body.

6.2.2.4 Guo River

Huaiyuan section of Guo River ： Water quality monitoring in the Guo River by Huaiyuan County Environmental Monitoring Station is shown in the table below.

Table 42: Evaluation of surface water quality in the Guo River

Unit：mg/L（pHdimensionless）Sampled

site

Sampled

date

Dissolved

oxygen

Water

temperaturepH

Index of

permanga

nate

Ammonia

nitrogenCODMn

Guo

Sanqiao

2006.2.18 11.0 7 8.30 8.40 9.97

2006.3.6 8.5 11.34 17.86

2005.12.8 3.61 7.00

2005.12.7 2.71 6.57

2005.10.9 7.2 21 7.98 1.10 5.9

Mean 9.1 14 8.26 9.87 7.05 6.49


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Standard for Class InⅣ

GB3838-2002≥3 6～9 ≤10 ≤1.5 ≤40

Water quality of Guo River is evaluated by using the single standard index formula based on the mean of Guo River water quality within the moniotoring time set out in Table 5-2-7 and the results are indicated in the following table.

Table 43: Single factor evaluation of water quality in Guo River

Sampled siteDissolved

oxygenpH

Index of

permanganate

Ammonia

nitrogenCODMn

Guohe

Sanqiao0.16 0.63 0.987 4.7 0.16

Calculation shows that the standard indicators of dissolved oxygen, DO, pH and permanganate index are less than 1, indicating that none of these water quality parameters has exceeded the standard, which meets the requirements for functional use and complies with the standard for Class Ⅳ in the Environmental Quality Standards for Surface Water (GB3838-2002). The standard indicator of ammonia nitrogen is greater than 1, indicating the water quality parameter has exceeded the stipulated standard and can no longer meet the requirement for use.

6.2.2.5 Hui River

As required by the zoning of water environmental functions, Guzhen section of Hui River shall follow the water quality standard for Class Ⅳ in the Environmental Quality Standards for Surface Water（GB 3838-2002）.

Statistics of water quality monitoring in Guzhen section of Hui River from 2001 ～2005 showed that during these five years the four pollutant indicators of mercury, lead, volatile phenols and petroleum were below the detection limit and no sample that exceeded the standard was found for pH whereas the permanganate index, dissolved oxygen, biochemical oxygen demand and ammonia nitrogen exceeded the standard to varying degree between years.

Table 44: Monitoring results in Guzhen section of Hui River during 2001～2005

Unit：mg/L（pH dimensionless）

Year Item pHDissolved

oxygen

Perman

ganate

index

Biochemi

cal

oxygen

demand

Ammon

ia

nitrogen

Mercury LeadVolatile

phenols

Petrol

eum


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2001

Mean 8.15 7.62 5.49 4.00 0.340 0.000005 0.025 0.001 0.01

Excess

standard rate0 0 0 0 0 0 0 0 0

2002

Mean 8.06 4.84 7.74 5.55 1.130 / / / /

Excess

standard rate0 0 12.5 0 37.5 / / / /

2003

Mean 7.87 5.9 8.42 7.54 0.842 0.000005 0.025 0.001 0.01

Excess

standard rate0 27.3 22.7 36.4 27.3 0 0 0 0

2004

Mean 7.95 6.49 6.33 5.16 0.681 0.000005 0.025 0.001 0.01

Excess

standard rate0 16.7 0 25 8.3 0 0 0 0

2005

Mean 8.02 5.51 8.52 4.26 0.665 0.000005 0.025 0.001 0.01

Excess

standard rate0 12.5 37.5 8.3 16.7 0 0 0 0

Class in GB 3838-Ⅳ2002

6～9 ≥3 ≤10 ≤6 ≤1.5 ≤0.001 ≤0.05 ≤0.01 ≤0.50

It is shown by the statistic data of water quality monitoring for the Guzhen section of Guzhen from 2001 to 2005 that the four pollution indicators of Hg, Pb, volatile phenol and petroleum in the water of this section are all within the detectable limits, and the pH value is also within the standard limits. However, there were inter-annual beyond-the-standard cases for the concentrations of CODMn, DO, BOD and NH3-N.

Water quality in the Hui River is evaluated by using the single standard index formula based on the annual mean of Hui River water quality set out in Table 44 and the results are indicated in the following table.

Table 45: Single Factor Evaluation of Water Quality in the Hui River

Year pHDissolved

oxygen

Index of

permang

anate

Biochemi

cal

oxygen

demand

Ammon

ia

nitrogen

Mercury LeadVolatile

phenols

Petroleu

m

2001 0.58 0.24 0.55 0.67 0.23 0.005 0.50 0.10 0.02


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2002 0.53 0.70 0.77 0.93 0.75 / / / /

2003 0.44 0.52 0.84 1.26 0.56 0.005 0.50 0.10 0.02

2004 0.48 0.43 0.63 0.86 0.45 0.005 0.50 0.10 0.02

2005 0.51 0.59 0.85 0.71 0.44 0.005 0.50 0.10 0.02

6.2.2.6 Huaihongxin River

Monitored data on the section water quality of Huaihongxin river of Huaihe River and Xiangjian Lake provided by Bengbu City Environmental Monitoring Station are shown in Table 46.

It is known from Table 46 the indicators of the section of Huaihongxin river of Huai River have all reached the standard for Grade Ⅲ in the Environmental Quality Standards for Surface Water（GB3838-2002）. Table 46: Monitoring results of the section water quality in Huaihongxin River of

Huaihe River and Xiangjian Lake

Unit：mg/L (pH dimensionless)

Monitored date

Items under monitoring

pHDissolved

oxygen

Index of

permanganate

Ammonia

nitrogenCOD

2005.3.24 8.70 10.26 4.08 0.450 13.1

2005.11.20 8.52 9.75 4.23 0.426 12.4

2006.2.26 8.46 11.60 3.86 0.532 10.6

2006.11.9 8.18 8.05 4.31 0.245 —

Class III, GB3838-2002 6~9 ≥5 ≤6 ≤1 ≤20

Water quality in Huaihongxin River is evaluated by using the single standard index formula based on the monitored mean of water quality set out in Table 46 and the results are indicated in Table 47.

Table 47: Single Factor Evaluation of Water Quality in Huaihongxin River

pH Dissolved oxygen Index of permanganate Ammonia nitrogenChemical oxygen

demand


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0.85 0.05 0.68 0.45 0.66

0.76 0.14 0.71 0.43 0.62

0.73 0.20 0.64 0.53 0.53

0.59 0.45 0.72 0.25 —

6.2.3 Water Quality of Canals and Ditches in the Urban Area

6.2.3.1 Xijiagou Canal

The concentratrion of major pollutants in the outlet to the Huaihe River from Xijiagou in 2006 provided by Bengbu Monitoring Station is shown in the Table 48.

Table 48: Monitoring Results of Water Quality in Xijiagou

Unit：mg/L（pH dimensionless）Jan Feb. Mar. April May July Aug. Sep. Oct. Nov. Dec.

Annual

mean

Grade V,

GB3838-2002

pH 6.70 7.80 7.31 7.69 7.54 7.36 7.22 7.21 7.55 7.56 7.22 7.38 6～9

COD 224 362 155 218 116 90.6 89.4 50﹤ 50﹤ 99 121.5 163.94 40

Ammonia

nitorgen18.384 15.28 5.121 5.148 7.61 1.788 2.43 8.147 5.284 1.416 1.725 6.58 2

The concentratrion of major pollutants in the outlet to the Huaihe River from Xijiagou in 2006 provided by Bengbu Monitoring Station is shown in the Table, from which it can be seen that water quality in Xijiagou exceeded the standard all the year round, of which COD and ammonia nitrogen were the highest, exceeding the water quality standard for Grade Ⅴ by about 8 folds. Clearly, water quality in Xijiagou has worsened and it is urgent to improve its water quality.

Water quality in Huaihongxin River is evaluated by using the single standard index formula based on the annual mean of Xijiagou water quality set out in Table48 and the results are indicated in Table 49.

Table 49: Single Factor Evaluation of Xijiagou Water Quality

pH COD Index of permanganate

0.19 4.10 3.29


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6.2.3.2 Sanpu Great Ditch

For monitoring of Sanpudagou surface water, two sections are to be set up （500 m in the upper reaches of the outlet of Sanpudagou to the Huaihe river and before the discharge outlet of Sanpudagou joins the Huaihe River ） and monitoring was done on June 15 and 16, 2006 for two days running , once a day. The results are shown in the table below.

Table 50: Results of sanpudagou water quality monitoring

Unit：mg/L（pH dimensionless）Mornitoring Item

Monitoring

section

Monitored

onpH COD

Ammonia

nitrogen

Index of

permanganat

e

BOD5

Water

temperatur

e

500 m in the①

upper reaches

of the outlet of

Sanpudagou to

the Huaihe river

2006.6.15 7.34 12.2 0.173 3.74 2.28 22.5

2006.6.16 7.36 12.1 0.164 3.81 2.28 22.7

before the②

discharge outlet

of Sanpudagou

joins the Huaihe

River

2006.6.15 7.61 24.4 0.278 7.96 5.88 23.2

2006.6.16 7.56 23.2 0.279 7.91 5.72 23.6

Class , GB3838-2002Ⅲ 6~9 ≤20 ≤1.0 ≤6 ≤4

Water quality in Sanpudagou is evaluated by using the single standard index formula based on the mean of Sanpudagou water quality set out in Table 50 and the results are indicated in Table 51.

Table 51: Single factor evaluation of sanpudagou water quality

Mornitoring Item

Monitoring sectionpH COD

Ammonia

nitrogen

Index of

permanganat

e

BOD5

① 500 m in the upper

reaches of the outlet of

Sanpudagou to the

Huaihe river

0.175 0.61 0.165 0.63 0.57


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② before the discharge

outlet of Sanpudagou

joins the Huaihe River

0.295 1.19 0.28 1.325 1.45

The section water quality 500 m in the upper reaches of the outlet of Sanpudagou to the Huaihe river reached the standard for Grade III in the Environmental Quality Standards for Surface Water （ GB3838-2002 ） . The water quality before the discharge outlet of Sanpudagou joins the Huaihe Rive failed to reach the standard for Grade III, but reached the standard for Grade IV in the Environmental Quality Standards for Surface Water （GB3838-2002）.

6.2.3.3 Ponds in Huaiyuan

Bengbu City Environmental Monitoring Station monitored water quality in the pond east of Huanchengxi Road in Huaiyuan County on March 5, 2007 and the results are shown in the table below.

Table 52: Water quality monitoring in Huaiyuan pond


Monitored date

Detection items

pH

Dissolve

d

oxygen

Index of

permangan

ate

Biochemi

cal

oxygen

demand

Ammoni

a

nitrogen

Phos

phatePetroleum

Fecal

coliform

and E. coli

2007.3.5 8.48 7.89 4.59 2.83 0.594 0.10 <0.02 22000

Standard for

Grade III,,

GB3838-2002

6～9 ≥5 ≤6 ≤20 ≤1.0 0.05 / /

Water quality in Huaiyuan pond is evaluated by using the single standard index formula based on the monitored value of Huaiyuan pond water quality set out in Table 5-2-17 and the results are indicated in Table 5-2-18.

Table 53: Single factor evaluation of water quality in Huaiyuan pond

pHDissolved

oxygen

Index of

permanganate

Biochemical

oxygen

demand

Ammonia

nitrogen

Phos

phatePetroleum

Fecal

coliform and

E. coli

0.74 0.29 0.765 0.142 0.594 2 / /


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6.2.3.4 Zhanggongshan Pond

Bengbu City Environmental Monitoring Station monitored water quality in the south, middle and north of Zhanggong Mount pond on April 6 and October 20, 2006 and the results are shown in the following table.

Table 54: Monitoring of water quality in Zhanggong Mount Pond


IndicatorSouth of Zhanggong Mount Middle of Zhanggong Mount North of Zhanggong Mount

4.6 10.10 Mean 4.6 10.10 Mean 4.6 10.10 Mean

pH 8.71 7.55 8.13 8.58 7.96 8.27 8.24 7.99 8.115

Dissolved

oxygen1.64 3.76 2.7 1.6 4.16 2.88 1.56 4.24 2.9

Index of

permanganate29.16 9.11 19.135 14.62 7.97 11.295 14.18 8.06 11.12

BOD5 10.08 3.99 7.035 6.72 3.32 5.02 6.64 3.29 4.965

Ammonia

nitrogen14.868 10.267 12.5675 14.922 5.146 10.034 10.574 4.327 7.4505

Mercury0.00000

50.000005 0.000005 0.000005 0.000005 0.000005 0.000005 0.000005 0.000005

Petroleum 0.03 0.03 0.03 0.04 0.03 0.035 0.04 0.04 0.04

Phosphate 1.56 0.82 1.19 1.56 0.84 1.2 1.50 0.78 1.14

Nitrogen 16.87 13.64 15.255 17.66 8.08 12.87 14.75 8.40 11.575

Cadmium 0.0025 0.0025 0.0025 0.0025 0.0025 0.0025 0.0025 0.0025 0.0025

Fecal coliform

and E. coli

（pc/l）

240000 ≥240000 240000 240000 7900 123950 240000 4900 122450

From the above table it is clear that ammonia nitrogen, phosphate, nitrogen and fecal coliform and E. coli in Zhanggong Mount Pond exceeded the standard greatly, which is mainly attributed to free discharge of raw domestic water into the ditch.


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6.3 Groundwater Quality

The monitored data on underground water in Longzi Lake Xilushan, Xiaozhujia, Jinjiagang and Shangying Village are shown in the following table, which are provided by Bengbu City Environmental Monitoring Station. The underground water quality in this area shall follow the standard for Grade III in the Standard for Underground Water Quality（GB/T14848-93）. Table 55: Groundwater Quality Monitored in the Surrounding Area of Longzi Lake

Site

Item（mg/L）

NH3-N NO2-N Cr6+ Hg As Pb CdFecal coliform count

（pc./L）

Xilushan0.070 0.003 <0.004 0.000025 <0.0005 <0.05 <0.005 <3

0.066 0.003 <0.004 0.000025 <0.0005 <0.05 <0.005 <3

Xiaozhujia0.063 <0.003 <0.004 0.000025 0.0012 <0.05 <0.005 <3

0.063 <0.003 <0.004 0.000025 0.0009 <0.05 <0.005 <3

Jinjiagang0.060 <0.003 <0.004 0.000025 0.0015 <0.05 <0.005 <3

0.057 <0.003 <0.004 0.000025 0.0013 <0.05 <0.005 <3

Shangying

Village

0.058 0.004 <0.004 0.000025 0.0025 <0.05 <0.005 <3

0.060 0.004 <0.004 0.000025 0.0028 <0.05 <0.005 <3

Underground water quality in the surrounding area of Longzi Lake is evaluated by using the single standard index formula and the results are indicated in the table below.

Table 56: Evaluation of underground water quality in Longzi Lake Area

Site Standard indicators

NH3-N NO2-N Cr6+ Hg As Pb Cd Fecal coliform

count

Xilu Mount 0.34 0.15 <0.08 0.025 <0.01 <1 <0.5 <0.1

Xiaozhujia 0.32 <0.15 <0.08 0.025 0.021 <1 <0.5 <0.1

Jinjiagang 0.29 <0.15 <0.08 0.025 0.028 <1 <0.5 <0.1


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Shangying

Village0.30 0.2 <0.08 0.025 0.055 <1 <0.5 <0.1

From the above evaluation it is evident that each indicator of underground water can reach the standard for Grade III in the Standard for Underground Water Quality （GB/T14848-93）, indicating the underground water quality is better.

6.4 Noise

6.4.1 Urban Area

6.4.1.1 Results and analysis of routine monitoring in the urban area

The table below shows the data on rountine acoustic environment monitoring obtained at the sites in the urban area of Bengbu.

Table 57: Monitored Value of Urban Noise Pollution in 2006

Unit: dB(A)

Area Scope of monitored value Mean

Huaishang District 50.7～66.7 53.4

High-Tech Industry Zone 50.2～71.7 57.7

Longzihu District 43.6～68.3 55.4

Yuhui District 51.3～67.1 58.0

Bengshan District 50.7～67.3 60.5

It is clear from the table that the mean of noise pollution in Bengbu can basically meet the acoustic environment standard for Grade II, but the existing noise pollution exceeded the standard significantly, especially the noise pollution on both sides of the road exceeded the standard more significantly. Huaishang district and Longzihu district under the jurisdiction of the city had relatively good acoustic environment ； Bengshan district had noise pollution exceeding the standard significantly as it is an old urban area with dense population, narrow streets and heavy traffic. In the New & Hi-tech Park noise pollution differs much: the non-built district has low-level noise pollution while the main road experiences serious noise pollution.

6.4.1.2 Road traffic noise


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Below is the monitoring result of road traffic noise pollution in the urban area of Bengbu.

Table 58: Monitored data on road traffic noise pollution in 2006 in Bengbu

Unit: dB(A)

Serial

No.Description

Section length

m

Section

width, m

Traffic volume

vehicle/h

Noise level,

dB(A)

1 Jiefang 2 Rd. 1800 28 983 71.9

2 Huaihe Rd. 4420 28 1441 71.3

3 Zhihuai Rd. 4400 33 1252 70.2

4 Gongnong Rd. 5120 30 1606 69.3

5 Chaoyang Rd. 6512 45 1203 69.2

6 Fengyang Rd. 5270 33 1154 68.9

7 Tushan Rd. 9540 45 1132 68.3

8 Jiefang Rd. 8405 42 812 67.9

9 Shengli Rd. 21890 40 1026 66.8

10 Hanghua Rd. 1000 25 309 66.2

11 Yanshan Rd. 8550 45 428 66.0

12 Hongye Rd. 2840 30 583 65.9

13 Donghai Ave. 21270 58 964 65.8

14 Yan’an Rd. 6382 35 1249 65.5

15 Huaguang Ave. 3700 50 724 65.4

16 Daqing Rd. 4976 45 902 61.3

From the monitoring results of road traffic noise pollution it is evident that roads located in the old urban area including Jiefang 2 Rd., Huaihe Rd., Zhihuai Rd., Gongnong Rd., Chaoyang Rd., Fengyang Rd. and Tushan Rd. experience serious noise pollution because fo heavey traffic. The newly-built roads including Donghai Ave., Huaguang Ave., Daqing Rd. and Yanshan Rd. with broad red line（more than 45m）have low-level noise pollution due to light traffic. Of the roads with the red line greater than 45m, only Tushan Rd. and Chaoyang Rd. witness heavy traffic


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and have a relatively-high level noise pollution because of crossing the main urban area. No doubt road traffic noise is closely related to the traffic volume.

6.4.2 Three Counties

As this project construction site financed by the World Bank loan is spread all over the urban districts of Bengbu and the three counties, the work is scattered and in order to get a full understanding of the status quo of the acoustic environmental quality, each sub-item has carried out special monitoring of the acoustic environment at the construction site.

6.4.2.1 Tianhe project

（1）Monitoring siteThe Environmental Evaluation Committee entrusts Bengbu City Environmental Monitoring Station with noise pollution monitoring at the six sites along the bank of the Tianhe River.

Monitoring sites：1# on the bridge of Tianhe Sluice 2# In Tianhe Fishery in the north of Tianhe River 3# Near Qinji pumping station at the Qinji Village on the east bank

of Tianhe River 4# Near Fengdong pumping station at Fengdong Village on the west

bank of Tianhe River 5# Near Gaogengqian Village pumping station at the south section

of Tianhe River 6# In Shixiang Village on the north side of Heihu Mountain

（2）Monitoring method

Monitoring method：The provisions stipulated in GB/T 14623 Measuring Method of Environmental Noise of Urban Area and GB12349-90 Method of Measuring Noise at Boundary of Industrial Enterprises should be implemented. The measuring device is AWA6218B sound-level meter with precision of Class II and above and its perforamance should comply with the provisions in GB/3878-83 Method of Measuring of Electro-acoustic Performance of Sound-level Meter. The device should be calibrated before and after measurement, in which the microphone should be equipped with a hurricane globe.

（3）Monitoring results and evaluation For monitoring results are shown in the following table.


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Table 59: Results and evaluation of noise pollution monitoring around the construction Site

Unit:dB(A)

Item 1# 2# 3# 4# 5# 6#

Day time monitored value 38.4 40.1 39.5 40.9 40.9 44.7

Night time monitored value 36.6 37.4 36.7 37.6 36.6 39.8

Standard for Grade I Day time 55, Night time 45

Data on noise pollution monitoring at the construction site show in the periphery of Tianhe River and neighborhood of Heihu Mountain people have good acoustic environment and the standard for Grade I in the Measuring Method of Environmental Noise of Urban Area is met.

6.4.2.2 Longzi Lake project

（1） Monitoring siteThe evaluator entrusts Bengbu City Environmental Monitoring Station with noise pollution monitoring at the four sites along the bank of Loangzi Lake.

Monitoring sites：1# In the Happiness Village at Longheji on the east side of Zhengjiadu Sluice in the north of Longzi Lake

2# In Zhangtianjia Village on the east bank of Longzi Lake 3# In Xuqiaocun Village on the south bank of Longzi Lake 4# In the yard of Worker’s Sanatorium on the west bank of Longzi

Lake

（2） Monitoring timeFebruary of 2007

（3） Monitoring method


（4）Monitoring results and evaluation RIg00002 A17978/CIGZ070287

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The monitoring results are shown in the following table.

Table 60: Results of noise pollution monitoring around Longzi Lake

Unit：dB(A)

Site 1# 2# 3# 4# Grade I（GB3096-1993）Day time 59.4 47.5 38.5 49.7 55

Night

time44.4 35.6 31.5 37.0 45

From the results in the above table it can be seen that except for the noise pollution value at the site of Happiness village in the north of Longzi Lake exceeding the standard for Grade I in the Measuring Method of Environmental Noise of Urban Area （GB3096-1993）, those at the other sites meet the standard for Grade I in the Measuring Method of Environmental Noise of Urban Area （ GB3096-1993 ） . On the whole the periphery of Longzi Lake enjoys good acoustic environment. The outstanding noise pollution value at the site of Happiness Village is mainly attributed to the big noise made by the construction machinery at the entrance to the Happiness Village as a large construction project is just under way there.

6.4.2.3 Urban Infrastructure Sub-project

On Jan. 30th and 31st 2007, Bengbu Municipal Environmental Monitoring Station monitored the noise situation for the involved project areas. The monitoring results are shown in the table below.

Table 61: Noise Monitoring Results for the Area Related to Urban Infrastructure Sub-project

Unit: dB(A)

Monitoring PointMonitoring Results GB3096-1993 Standard

Daytime Night Daytime Night

1# Centre of Longzi Lake Industrial Park (Longjin Rd.) 45.4 47.8 Class 3, 65 Class 3,

552# Crossing of Lilou Rd. and Donghai Ave. 60.7 54.0

3# Dingmiao Village 50.1 49.7


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4# Centre of HTZ (Crossing of Huangshan Rd.and Daqing

Rd.)57.9 51.3

5# Crossing of Huangshan Rd. and Ying River 60.4 52.9

6# Xiaohuangshan Village 63.7 52.4

7# Crossing of East Shengli Rd. and Zhuizishan Rd. 62.0 52.8

Class 4, 70Class 4,

55

8# Crossing of Nanhu Rd. and Xuehua Rd. 59.9 54.9

9# Crossing of No.2 Hongqi Rd. and West Surrounding

Dyke63.5 53.1

10# Crossing of Changzheng Rd. and Changle Rd. 65.7 55.7

11# Crossing of Daqing Rd. and Baligou Canal 65.8 55.3

12# Yinghu Rd. Storm Drainage PS 55.6 51.3

13# Zhihuai Rd. Storm Drainage PS 58.7 52.5

14# Nanshijia Storm Drainage PS 58.0 54.5

15# Xinchuantang Storm Drainage PS 60.0 52.0

From the monitoring results it could be seen that the noise in the areas involved in the project could meet the standard requirements.

6.4.2.4 Xijiagou and Baligou project

（1）Monitoring site The evaluator entrusts Bengbu City Environmental Monitoring Station with noise pollution monitoring along Baligou and Xijiagou.

Site：1# Intersection between Daqing 2 Rd. and Baligou 2# Intersection between Huangshan Rd. and Xijiagou

（2） Monitoring time January 31, 2007


Monitoring method：The provisions stipulated in GB/T 14623 Measuring Method of Environmental Noise of Urban Area and GB12349-90 Method of Measuring Noise at Boundary of Industrial Enterprises should be implemented. The measuring device is AWA6218B sound-level meter with precision of Class II and above and its


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perforamance should comply with the provisions in GB/3878-83 Method of Measuring of Electro-acoustic Performance of Sound-level Meter. The device should be calibrated before and after measurement, in which the microphone should be equipped with a hurricane globe.

（4）Monitoring results and analysis For monitoring results refer to the table below.

Table 62: Monitoring results of noise pollution around Baligou and Xijiagou

Monitoring SiteResults Leq[dB(A)] Grade II（GB3096-1993）

Day time Night time Day time Night time

1# 65.8 55.360 50

2# 60.4 52.9

As the monitoring site is close to the urban main line of communication under the great influence of vehicles to and fro, the noise pollution value around the construction site exceeds the standard to different extent.

6.4.2.5 Huaishang District project

（1）Monitoring siteBengbu City Environmental Monitoring Station monitored noise pollution at the three sites within the scope of the project. The three sites are Intersection between the planned Daqing Rd. North and Huaibei Land（Qijiadu Village）；Big ditch of 40 m （ south of Xiaobengbu Storm Drainage Station near Huaibei Dyke ） and Intersection between Wuxiaojie drainage and irrigation canal and Huaibei Land.

（2）Monitoring time

Day time：Jan. 30, 2007 15：05~16：04

Night time：Jan. 30, 2007 22：20~23：23


Monitoring method：The provisions stipulated in GB/T 14623 Measuring Method of Environmental Noise of Urban Area and GB12349-90 Method of Measuring Noise at Boundary of Industrial Enterprises should be implemented. The measuring device is AWA6218B sound-level meter with precision of Class II and above and its perforamance should comply with the provisions in GB/3878-83 Method of Measuring of Electro-acoustic Performance of Sound-level Meter. The device


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should be calibrated before and after measurement, in which the microphone should be equipped with a hurricane globe.

（4）Monitoring results and evaluation For monitoring results refer to the table below.

Table 63: Monitoring results of urban noise pollution

Monitoring Site

Equivalent sound level：Leq[dB(A)] Standard to be

followedDay time Night time

(1) Intersection between the planned Daqing Rd.

North and Huaibei Land（Qijiadu Village） 46.0 41.9Grade II, GB3096-

93：Day time 60dB(A)

Night time 50dB(A)

(2) Big ditch of 40 m（south of Xiaobengbu Storm

Drainage Station near Huaibei Dyke） 45.5 42.6

(3) Intersection between Wuxiaojie drainage and

irrigation canal and Huaibei Land.45.6 41.4

From the above table it is clear that the noise pollution value at each site meets the standard for Grade II in the Measuring Method of Environmental Noise of Urban Area （GB3096-93）.

6.4.2.6 Guzhen County project

（1）Monitoring sitesNoise pollution is specially monitored at the seven sites involved in the project,namely, site of the south station in Guzhen county（intersection between the Lao Street and Huihe Dyke）, Xiaoloucun, Qizhuang, No.1 Middle School East, No.1 Middle School West, Niushixiang Center and near Furniture Factory about 10 meters along the river embankment on the east side of Guxi Storm Drainage Station.

（2）Monitoring time Feb. 1 to 2, 2007 and Feb. 14 to 15, 2007


Monitoring method：The provisions stipulated in GB/T 14623 Measuring Method of Environmental Noise of Urban Area and GB12349-90 Method of Measuring Noise at Boundary of Industrial Enterprises should be implemented. The measuring device is AWA6218B sound-level meter with precision of Class II and above and its perforaman should comply with the provisions in GB/3878-83 Method of


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Measuring of Electro-acoustic Performance of Sound-level Meter. The device should be calibrated before and after measurement, in which the microphone should be equipped with a hurricane globe.

（4）Monitoring results and evaluation In this monitoring each site should follow the Measuring Method of Environmental Noise of Urban Area （ GB 3096-93 ） for Grade II. The current noise pollution monitoring results are shown in the table below.

Table 64: Special monitoring of noise pollution

Unit：Leq dB(A)Monitoring site Day time noise Night time noise

Site of south station in Guzhen county （intersection between

the Lao Street and Huihe Dyke） 54.0 51.6

In Xiaoloucun of Guzhen 45.2 41.1

In Qizhuang of Guzhen 42.6 42.1

No. 1 Middle School East in Guzhen county 47.2 47.2

No. 1 Middle School West in Guzhen county 43.8 43.1

Niushixiang Center in Guzhen county 54.4 51.0

Near the Furniture Factory about 10 meters along the river

embankment on the east side of Guxi Storm Drainage Station in

Guzhen county.

52.9 38.5

GB 3096-93（Grade II） 60 50

It is clear from the above table that the Night time noise pollution value at the monitoring site of Nieshixiang Center exceeded the standard for Grade II in the Measuring Method of Environmental Noise of Urban Area（GB 3096-93） and the noise value at other sites met the standard with good acoustic environment. As no industrial enterprise exists near Niushixiang nor is there any noise pollution source including the construction project under way, the outstanding Night time noise pollution value at the site may be attributed to the instantaneous confused noise made by the residents. The acoustic environment involved in this project is basically good.

6.4.2.7 Huaiyuan County project

（1） Monitoring site


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Bengbu City Environmental Monitoring Station conducted noise pollution monitoring respectively at the four sites, i.e., site of Lizuizi Pumping Station, intersection between Yuwang Rd. East and Wenchang Rd., site of Laoximen Pumping Station and about 40m to the east of Huancheng Rd.West and 100m to the south of Yuwang Rd. West.

（2）Monitoring timeFebruary 1, 2007




Table 65: Monitoring results of noise pollution in the Huaiyuan project

Moniroring SiteStandard to

be followed

Monitored value Standard value

Day

timeNight time Day time Night time

Site of Lizuizi Pumping Station Standard for

Grade II58.2 48.1 60 50

Intersection between Yuwang Rd.

East and Wenchang Rd.

Standard for

Grade II76.2 62.5 60 50

Site of Laoximen Pumping Station Standard for

Grade III47.1 45.5 65 55

About 40m to the east of Huancheng

Rd.West and 100m to the south of

Yuwang Rd. West.

Standard for

Grade III58.2 48.5 65 55

It can be found from the above table that the background noise pollution value at the site of Lizuizi Pumping Station met the standard for Grade II in the Measuring Method of Environmental Noise of Urban Area （GB3096-93）； the background


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noise pollution values at the site of of Laoximen Pumping Station and about 40m to the east of Huancheng Rd.West and 100m to the south of Yuwang Rd. West met the standard for Grade III in the Measuring Method of Environmental Noise of Urban Area （GB3096-93） whereas the noise pollution value at the intersection between Yuwang Rd. East and Wenchang Rd. exceeded the standard for Grade II in the Measuring Method of Environmental Noise of Urban Area （ GB3096-93 ） because it is located at the crossing between the main urban lines of communication under the great influence of traffic.

6.4.2.8 Mohekou of Wuhe County project

（1） Monitoring siteBengbu City Environmental Monitoring Station monitored noise pollution at the four sites within the industry zone.

（2）Monitoring time Each site was monitored once in the specified time.

Day time：Jan. 30, 2007 06：00~22：00

Night time：Jan. 30, 2007 22：00~06：00

（3） Monitoring frequency and method



Table 66: Monitoring Results of Urban Noise Pollution in Mohekou Industry Zone

Site

Equivalent sound level：Leq[dB(A)] Standard to be followed

Day time Night time

(1) Wuhe Sanpu Middle

School

44.9 41.8 Grade II, GB3096-93：Day time,

60dB(A), Night time, 50dB(A)


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(2) Wuhe Mohekou Middle

School 47.4 39.4

(3) Wuhe Sanpu Canal

Storm Drainage Pumping

Station

45.4 41.6

(4) Open space on the

industrial avenue in Wuhe

Industry Zone

46.1 38.1Grade III, GB3096-93：Day time,

65dB(A),Night time, 55dB(A)

Based on the above table, it can be seen that the noise pollution value at each site meets the corresponding requirements set out in the Measuring Method of Environmental Noise of Urban Area (GB3096-93).

6.5 Sediment Quality

As no routine monitored data on sediment and soil in Bengbu city are available, in this evaluation special monitoring of sediment is carried out more extensively in the urban districts of Bengbu and suburban counties. The main task is to make selections and fix up points for desilting and dredging of lakes, ponds, ditches and canals involved in the proposed construction projects. The aim is to keep them as the background monitored data on sediment and also know the composition and property of the sediment to be cleared for selection of a proper way of silt disposal.

The north lake of Longzi Lake was desilted in 2005, leaving some historical background monitored data on the sediment in Longzi Lake. On this basis some monitoring points for sediment are added up to carry out the background environmental monitoring of sediment in the Longzihu sub-item.

6.5.1 Tianhe Project

To obtain an elementary knowledge of the environmental quality of soil around Tianhe River and sediment in Tianhe River, in this environmental evaluation the Bengbu Environmental Monitoring Station is entrusted to carry out special monitoring of the soil and sediment around Tianhe River. The monitoring points are set up at the Tianhe sediment point and coastal soil point near the intake of the emergency water source in Qinji town respectively and for the monitoring results, refer to the table below.

Table 67: Monitoring Results of the Sediment and Coastal Soil in Tianhe River

Unit: mg/kg (organic matter, %)


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IndicatorOrganic

matterPhosphate Nitrogen Arsenic Lead Mercury Chromium

Sediment in

Tianhe River0.92 3.74 18.86 12.52 37.10 0.003 37.1

Soil in the

farmland around

Tianhe river

2.93 9.12 34.90 10.90 44.80 0.018 82.30

Paddy

Field

Of Grade II,

GB15618-1995

— — — 25 300 0.50 300

GB4284-84

pH≥6.5— — — 75 1000 15 1000

Background

value of soil in

Anhui province

— — — 8.5 26.0 0.029 67.0

The evaluation standards of the soil and sediment in the project site to be followed cover the limit for Grade II paddy field in the Standard of Soil Environmental Quality （ GB15618-1995 ） and maximum permissible content of neutral and alkaline soil in the Control Standards for Pollutants in Sludges from Agricultural Use GB4284-84. Simultaneously an integrated evaluation of the soil and sediment quality in Tianhe area is made by comparing and analyzing the background soil value in Anhui province.

In the table below are also shown the Standard of Soil Environmental Quality, Control Standards for Pollutants in Sludges from Agricultural Use and background soil value in Anhui province. It is clear from the table that no heavy metal content in the sediment of Tianhe River has exceeded the limit for Grade II paddy field in the Standard of Soil Environmental Quality and the limit in the Control Standards for Pollutants in Sludges from Agricultural Use ；Compared with the background soil value in Anhui province, only the arsenic and lead content is slightly higher, about 1.5 times that in the background soil value in Anhui province and is basically close to it.

The organic matter content in the sediment of Tianhe River and its surrounding farmland soil stands at 0.29% and 2.93% respectively. In line with the identification indicator evaluation of soil fertility（soil with organic matter content


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of about 3% is rated as moderate and superior fertility and less than 1% as inferior fertility）, the sediment in Tianhe River is inferior in fertility while the soil in the farmland superior in fertility, which has something to do with fertilization in farming.

The table below shows the calculation results of ecological risk factors and indices for the sediment in Tianhe River and its surrounding farmland soil.

Table 68: Ecological Risk Factors and Indices of Heavy Metals in the Sediment in Tianhe River and its Surrounding Farmland Soil

Site

Item

Sediment in Tianhe River Farmland Soil

As Pb Hg Cr As Pb Hg Cr

1.47 1.43 0.10 0.55 1.28 1.72 0.62 1.23

10 5 40 2 10 5 40 2

14.7 7.2 4.0 1.1 12.8 8.6 24.8 2.5

27.0 48.7

The calculation results of the ecological risk factors and indices of heavy metal in the table above show both the risk factors and indices of the sediment in Tianhe River and soil are lower than 40 and 150 respectively, indicating the sediment in Tianhe River and soil will inflict slight ecological harm and won’t endanger the growth of artificial wetland and land vegetation significantly.

6.5.2 Longzi Lake project

According to survey, the bottom mud in the Longzi Lake dredged area can be divided into three layers, the first is the contaminated layer （A） , the second is the transitional layer （ B ） and the third is the normal lake sedimentary formation （ C ） and the features of each layer are shown in the table below. Horizontally in terms of sedimentary thickness of the contaminated layer in the Longzi Lake, the South Lake Area is significantly greater than the North Lake Area as it boasts a thick layer of contaminated bottom mud.

Table 69: Vertical distribution of bottom mud in Longzi Lake


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Dredged

layerSoil Site decription

South

Lake

Area

Contaminated

layer

Layer thickness of 0.10~1.1m, 0.5m on average, mud surface top elevation of

15.0~15.6m, black and grey-black, fluid~soft plastic, a lot of organic matter

mixed with bush and tree and clam shell on the top of silt and silt clay, sand grain

in some part.

Transitional

layer


14.6~15.2m, grey-black and grey, soft plastic~plastic, few organic matter mixed

with sand and clam shell in part.

Normal

layer

Lake sedimentary clay, yellow~brown-yellow, soft plastic on top and turning

plastic downward, mixed with sand, small stone and crushed stone.

North

Lake

Area

Contaminated

layer


14.4~15.4m, black and grey-black, fluid~soft plastic, a lot of organic matter

mixed with rotten bush and tree and clam shell on the top of silt and silt clay,

sand grain in part.

Transitional

layer

Layer thickness of 0.4~2.7m, 1m on average, mud surface top elevation of

14.0~15.0m, grey-black and grey, soft plastic~plastic, silt clay bottom layer, few

organic matter mixed with sand and clam shell in part.

Normal

layer

Lake sedimentary clay, yellow~brown-yellow, soft plastic on top and turn plastic

downward, mixed with sand, small stone and crushed stone.

6.5.2.1 Historical Monitoring Data

The table below shows the routine monitoring results of bottom mud in the North and South Areas of Longzi Lake.

Table 70: Monitoring results of bottom mud in Longzi Lake


South Lake Area North Lake Area

Grade III（GB15618-1995）Layer

A

Layer

B

Layer

C

Layer

A

Layer

B

Layer

C

Cu 24.66 16.64 18.90 34.16 19.42 22.48 400

Pb 194.1 20.45 24.01 100.10 17.57 22.97 500


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Zn 113.8 46.41 51.43 153.0 51.52 57.54 500

Cr 304.94 40.63 48.66 388.44 40.90 57.98400（paddy field）,300（dry

land）As 17.55 4.99 5.71 17.64 3.66 5.20 30（paddy field）,40（dry land）Cd 0.43 0.13 0.15 0.42 0.11 0.13 1.0

Ni 51.4 24.1 26.6 79.6 20.56 20.50 200

THg 0.05 0.02 0.02 0.21 0.02 0.02 1.5

TN — 101.53 115.74 — 87.78 109.64 —

TP — 0.02 0.02 — 0.03 0.03 —

Sulfide (baded

on S )32.6 0.04 0.04 40.3 0.06 0.06 —

Organic matter 2.49 0.94 0.89 3.42 0.93 0.99 —

In the vertical distribution of bottom mud, heavy metals and nutrients decrease progressively from Layer A to layer B with some rise from Layer B to Layer C. As a whole, Layer A contains much more than the other two mainly because it is contaminated heavily from the outside and Layer B and Layer C are chiefly the products of inherent sedimentation in the soil.

6.5.2.2 Special monitoring of environment supervision

An integrated evaluation of the current soil environmental quality is made in light of monitoring results of the bottom mud of contaminated layer（A）in Longzi Lake area in 2006 provided by Bengbu Environmental Protection Bureau.

Table 71: Monitoring results of the bottom mud in Longzi Lake area

Unit：mg/kg (organic matter, %)

Hg As Cr Cu Zn Ni Pb CdOrganic

matter

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg (%)

1（Worker‘s Sanatorium West） <0.004 7.543 217 41.0 134 110 213 0.34 3.68

2（Worker‘s Sanatorium Middle） <0.004 20.732 498 35.5 175 129 159 0.51 3.75

3（Worker‘s Sanatorium East） 0.005 21.067 428 40.1 267 64.4 64.1 0.69 4.00


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4（Lanling Rd. West） 0.018 6.508 284 35.8 251 81.1 57.4 0.51 3.39

5（Lanling Rd. Middle） <0.004 19.475 403 47.4 120 59.7 51.9 0.32 3.67

6（Lanling Rd. East） 0.006 20.145 272 41.0 125 89.6 82.2 0.30 3.58

7（Qiuqiao Village West） <0.004 23.170 146 11.6 61.8 15.2 231 0.69 3.16

8（Qiuqiao Village Middle） 0.032 22.614 409 18.0 29.1 38.8 173 0.30 3.16

9（Qiuqiao Village East） 0.031 21.604 259 12.5 73.0 26.0 127 0.24 2.47

10（Longzi Lake South-West） 0.059 9.400 62 30.0 89.0 41.0 37 0.28 1.79

11（Longzi Lake South） 0.076 5.200 58 23.0 75.0 36.0 31 0.22 1.56

From the table above it can be found that in the bottom mud for this project except for the surface Cr content that exceeded the limit for dry land（lower than that for paddy field ） for Grade III in the Standard of Soil Environmental Quality （ GB15618-1995 ） , the content of other metals is far lower than that specified in the Standard and the soil won’t harm and pollute the plants and environment basically. In terms of chromium distribution, chromium concentration of the bottom mud in the North Lake area is significantly higher than that in the South Lake area, which may be attributed to the industrial sewage discharged by some electronic components manufacturers in the North Lake area.

In line with the identification indicator evaluation of soil fertility, soil with an organic matter content of ~3% is rated as moderate and superior fertility and that with less than 1% as inferior fertility. For the bottom mud in Longzi Lake, those in the southwest and south of Longzi Lake are rated as inferior fertility and those at other sites as moderate or superior fertility.

The following table shows the background soil value in each province and municipality all over the country listed in the Principles and Methods of Environmental Impact Assessment Technology published by the SEPA. From the table it is known that Cd, Cr and Pb in the contaminated layer of bottom mud in Longzi Lake are about three to five times the background soil value in Anhui province and other indicators stay at the same level basically.

Table 72: Background soil value in each province of China

Unit：mg/kgHg Cd As Pb Cu Cr Zn

Anhui Province 0.029 0.083 8.5 26.0 20.2 67.0 56.3


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Liaoning

Province0.032 0.084 8.6 20.7 18.5 54.4 59.1

Guangdong

Province0.056 0.04 7.1 28.9 11.4 34.8 35.8

Shannxi

Province0.021 0.089 10.8 20.5 19.5 62.0 65.8

Shandong

Province0.016 0.079 8.7 24.3 21.7 65.2 61.9

Henan

Province0.03 0.074 10.6 19.1 19.0 62.9 57.3

North Lake of

Longzi Lake0.01 0.45 15.91 104.6 40.13 350.33 178.67

South Lake of

Longzi Lake0.04 0.35 16.4 119.8 19.02 186.8 65.58

The table below shows the calculation results of the ecological risk factors and indices of botton mud in Longzi Lake.

Table 73: Ecological risk factors and indices of heavy metals in bottom mud of Longzi Lake

AreaEi

f

RIHg Cd As Pb Cu Cr Zn

North Lake

Area14 163 19 20 10 10 3 239

South Lake

Area55 127 19 23 5 6 1 236

Calculation results of ecological risk factors and indices of heavy metals in the bottom mud of Longzi Lake show that in the contaminated layer of bottom mud in the North Lake Area of Longzi Lake, Cd will inflict very great ecological harm. In the contaminated layer of bottom mud in the South Lake Area of Longzi Lake, Hg will inflic moderate ecological harm and Cd great harm. Other metals will inflict slight ecological harm. As a whole, RI of the contaminated layer of bottom mud in the South and North Lake Areas is very close to each other and will inflict moderate ecological harm. If this part of bottom mud is used for afforestation and


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landscaping after becoming dried in the stack yard, no adverse effect will be produced upon the vegetation.

6.5.3 Xijiagou and Baligou

·Monitoring method

The evaluator entrusted Bengbu City Environmental Monitoring Station with sampling and monitoring of the bottom mud in Baligou and Xijiagou. The monitoring sites are located under 1# the intersection bridge between Baligou and Donghai Avenue and 2# the intersection bridge between Xijiagou and Yangshan Rd. For chemical analysis, the selective pairing and analytical methods in GB15618-1995 Standard of Soil Environmental Quality should be adopted.

·Sampling time

January 31, 2007 ·Monitoring results and analysis

For monitoring results, refer to the following table.

Table 74: Monitoring results of soil environmental quality in Baligou and Xijiagou


Monitoring SiteOrganic

matterArsenic Lead Mercury Chromium Phosphate Nitrogen

1# 2.04 10.36 35.5 0.064 34.6 1.88 75.111

2# 7.01 13.06 42.5 0.085 60.4 3.22 59.796

（GB15618-1995）Grade III standard

—

30（paddy

field）40（dry land）

500 1.5

400（paddy

field）300（dryl

and）— —

Background soil

value in Anhui

province

— 8.5 26.0 0.029 67.0 — —

From the above table it is known that all the indicators of bottom mud in Baligou and Xijiagou have reached the Standard of Soil Environmental Quality for Grade III (GB15618-1995), indicating the mud won’t harm and pollute the plants and environment basically. Compared with the background soil value in Anhui province, other indicators except chromium have exceeded the same.


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In line with the identification indicator evaluation of soil fertility, soil with an organic matter content of about 3% is rated as moderate and superior fertility and less than 1% as inferior fertility. The bottom mud in Xijiagou is over two times as fertile as moderate and superior fertility and the bottom mud in Baligou is close to moderate fertility.

The table below shows the calculation results of ecological risk factors and indices of dredged bottom mud.

Table 75: Evaluation of ecological risks of dredged bottom mud in Baligou and Xijiagou

Monitoring siteEi

f

RIAs Pb Hg Cr

1#（Baligou） 12.2 6.85 88.4 1.04 108.49

2#（Xijiagou） 15.4 8.15 117.2 1.8 142.55

From the evaluation in Table 5-5-9 it is known that the major pollutant in the bottom mud in Baligou and Xijiagou is mercury, which will inflict great ecological harm.

6.5.4 Guzhen County

Monitoring results of bottom mud are shown in the following table.

Table 76: Special monitoring results of bottom mud for Guzhen project

Unit：mg/kg (Organic matter, %)

Monitoring Site Organic

matterArsenic Lead Mercury Chromium Phosphate Nitrogen

1＃Pond on the north

side of Neilu bridge,

Niushixiang,Cheng

Guan town

9.78 22.32 87.1 0.108 78.0 8.10 80.588

2＃一 West side of EW

ditch in No.1 Middle

School

16.82 15.75 109.2 0.152 90.3 394.67 158.125

3＃Near Wangsiweizi

of the boundary ditch 5.10 6.96 30.0 0.022 80.0 71.75 25.991


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Grade III, GB 15618-

1995 － ≤30 ≤500 ≤1.5 ≤400 －－

Background value of

soil in Anhui province － 8.5 26.0 0.029 67.0 －－

The above table shows that the quality of bottom mud at each site has reached the standard of Soil Environmental Quality for Grade III (GB 15618-1995). Compared with the background value of soil in Anhui province, other indicators except chromium exceeded the same.

Status of bottom mud is evaluated by the ecological risk factors and indices used in the study of substrate in the Yalujiang River by Chen Jingsheng et al.

Where ——pollution factor of a single metal； ——measured value of metal sediment concentration；

——background value of soil in Anhui province is taken as reference value for

calculation；

Where ——potential ecological risk factor of a single metal； ——toxic response factor of a single metal , refer to table 3-4-5；

Where —— potential ecological risk indices of multiple sediment metals； ——number of indicators

Table 77: Toxic Response Factor of Metals

Arsenic Lead Mercury Chromium


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10 5 40 2

Table 78: Division of Ecological Risk Factors and Indices

Eif RI Extent of ecological risk

<40 <150 Slight

40-80 150-300 Moderate

80-160 300-600 Great

160-320 >600 Very great

>320 — Extremely great

The following table shows the calculation results of ecological risk factors and indices of bottom mud.

Table 79: Evaluation of Ecological Risk of Bottom Mud

Site Ei

f

RIArsenic Lead Mercury Chromium

1# 26.3 16.8 149.0 2.3 194.3

2# 18.5 21.0 209.7 2.7 251.9

3# 8.2 5.8 30.3 2.4 46.7

Based on the evaluation in the above table it is clear that the major pollutant in the bottom mud is mercury. In line with the division of ecological risk factors and indices in Table 5-11-3, the mercury in the bottom mud at sites of 1＃ and 2＃ will inflict great and very great ecological harm. As a whole, RI of bottom mud at sites of 1＃ and 2＃ is greater than 150, indicating the bottom mud in the pond on the north side of Neilu bridge, Niushixiang, Chengguan town and the west side of the EW ditch of No. 1 Middle School (two dots stand for river course and ditch and pond in the urban area ）will inflict moderate ecological harm. But RI of bottom mud at sites of 3＃ is less than 150, indicating the bottom mud near Wangsiweizi of the boundary ditch （ for suburban river course ） will inflict slight ecological harm. Accordingly it is suggested that bottom mud in the pond on the north side of Neilu bridge, Niushixiang, Chengguan town and the EW ditch of No. 1 Middle


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School not be used as the soil for farm crops that are directly taken as food by the people.

6.5.5 Huaiyuan County

·Sampling principal

With respect to the storage pond for this project, two ponds are built, one is Camel Ridge Pond and the other is TCMH Pond. As water in these two ponds comes from the mountains and the surroundings are similar, the bottom mud in Camel Ridge Pond is sampled. As the four flood discharge ditches have similar surroundings, the flood discharge ditch of Jinshanlu is selected as the detection sample.

·Monitoring method

For chemical analysis, the selective pairing and analytical methods in GB15618-1995 Standard of Soil Environmental Quality should be adopted.

·Monitoring results and analysis

For monitoring results, refer to the table below.

Table 80: Detection results of bottom mud for Haiyuan project


Detection

location

Items under detection（mg/kg）Organic

matter, %Arsenic Lead Mercury Chromium Phosphate Nitrogen

Center of

Camel Ridge

Storage Pond

1.91 6.042 38.6 0.032 55.0 4.00 26.355

10 m behind

the crossing

between

Jinshanlu flood

discharge ditch

and

Guimenguan

flood discharge

ditch

0.67 4.042 29.1 0.138 46.1 3.86 23.558

Standard value 30（paddy

field）500 1.5 400（paddy

field）RIg00002 A17978/CIGZ070287

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40（ dry

land ）300（dry land

）From the monitored data on the bottom mud it is known that the concentration of arsenic, lead, mercury and chromium reached the Standard of Soil Environmental Quality（GB15618-1995）for Grade III.

6.5.6 Mohekou in Wuhe County project

·Monitoring site

1# Sanpu Canal

2# Mochong river approach·Sampling results and analysis

Samples should be taken in line with relevant technical specification of environmental monitoring and for chemical analysis, the selective pairing and analytical methods in GB15618-1995 Standard of Soil Environmental Quality should be adopted.

·Sampling time

January 30, 2007 ·Monitoring results and analysis

For monitoring results, refer to the following table.

Table 81: Monitoring results of the bottom mud in the Industry Park


Site location

Item under detection

Oragani

c matter

Arseni

c

Lea

dMercury Chromium

Phosphat

e

Nitroge

n

Ⅰ Mochong river

approach： near the

expressway

3.51 14.49 34.8 0.049 94.4 2.89 49.306

Ⅱ Sanpu canal：intersection between

the Park avenue and

Sanpu canal

2.36 15.64 34.9 0.108 90.1 2.44 37.539


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Ⅲ about 200m

downstream

the intersection

between Sanpu canal

and Mochong river

approach

0.83 15.42 79.7 0.022 80.0 71.75 25.991

Standard for

Control of Pollutants in

Agricultural Sludge

（GB4284-84）— 75

100

015 1000 — —

Grade III, Standard of

Soil Environmental

Quality（GB15618-

1995）

—

Paddy

field

≤30

≤50

0≤1.5

Paddy

field ≤400— —

From the above table it is known that the bottom mud in Sanpu Canal and Mochong river approach meets Grade III standard of soil environmental quality in the surrounding stack yard and the Control Standards for Pollutants in Sludges from Agricultural Use （GB4284-84） , indicating the soil won’t harm and pollute the crops and environment basically.

The table below shows the calculation results of the ecological risk factors and indices of dredged bottom mud.

Table 82: Evaluation of ecological risks of dredged bottom mud

SiteEi

f

RIAs Pb Hg Cr

1#（Mochong river

approach） 17.0 6.7 67.6 2.8 94.1

2#（Sanpu canal） 31.4 9.0 251.7 3.8 295.8

From the evaluation in the above table it is known that the major pollutant in the bottom mud is mercury, which will inflict great ecological harm.

Mercury is the sole metallic element existing in a liquid state at room temperature. The commonly-seen mercury pollution source is the industrial sewage from enterprises of chemicals, instruments, pesticides containing mercury, metallurgy, bulb, chloro-alkaline industry and electronics. The existing industry in Mohekou town is mainly distributed in the town area dispersely, which


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involves in grain processing, resin, building materials and battery. The high mercury content in the rivercourse bottom mud in the area may be attributed to the industrial sewage discharged by enterprises nearby.


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7 Environmental Impact Analysis

7.1 Project Benefits

7.1.1 Social Benefits

7.1.1.1 Water Conservancy Project

Of the eight sub-items financed by the World Bank loan, the water conservancy project mainly involves the construction of storm drainage pumping stations and dredging of canals and ditches.

1．Construction of storm drainage pumping stations The eight sub-items involve the construction and extension of 17 storm drainage pumping stations, which are distributed all over Bengbu urban district and its three counties and suburbs. Of these, five are located on the south bank and eleven on the north bank of Huaihe River as shown in the following table.

Table 83: Schedule of storm drainage pumping stations to be built and extended

No. Description Location Service area

1 Xinchuantang Storm

Drainage Pumping Station

Urban districtOn the south bank of Huaihe River,

area east of Xijiagou

2 Zhihuailu Storm Drainage

Pumping Station

3 Nanshijia Storm Drainage

Pumping Station

4 Tianhe Storm Drainage

Pumping StationYuhui District

On the south bank of Huaihe River,

area west of Baligou

5Longzihu Storm Drainage

Pumping Station

Longzihu

District

On the south bank of Huaihe River,

part to the east and west of Longzi

Lake

6 Beifeihe Storm Drainage

Station

Huaishang

District


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On the north bank of Huaihe River, part

to the south of Beifei River in

Huaishang District

7 Xiaobengbu Storm Drainage

Station

8 Wangxiaogou Storm

Drainage Station

9 Sanpuhu Storm Drainage

Pumping StationMohekou

On the north bank of Huaihe River,

Mohekou Town and Sanpu Lake Area

10 Lizuizi Storm Drainage

Pumping Station Huaiyuan

County

On the north and west banks of Huaihe

River, Chengguan town, Huaiyuan

County and adjacent area11 Xinzhuangzi Storm Drainage

Pumping Station

12 Guxi Storm Drainage

Pumping Station

Guzhen

Chengguan

Town

Southwest

suburbs

On the east bank of Huihe River,

Chengguan Town and its peripheral

area

13 Xiwei Storm Drainage

Pumping Station

14 Qizhuang Storm Drainage

Pumping Station

15 Dalou Storm Drainage

Pumping Station

16 Xiaolou Storm Drainage

Pumping Station

17 Chengnan Storm Drainage

Pumping Station

From the distribution of storm drainage pumping stations in this construction project, it is evident that after completion of the 17 storm drainage pumping stations, the ability to manage flood and drain storm water in Bengbu urban district, Guzhen, Chengguang town of Huaiyuan and Mohekou area of Wuhe will be enhanced markedly so that the safety of urban districts on both banks of Huaihe river and agricultural production in the neighboring suburbs and counties will be ensured effectively.

The construction of storm drainage pumping stations in each part will effectively upgrade the flood management standard and water level in their service area. The residents, enterprises, villages and farmland within the service area will no longer suffer from flood frequently in the flood season and the safety of people’s lives and property will be guaranteed and industrial and agricultural development


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and economic benefits in the project construction area will be safeguarded to some extent.

2．Dredging project Desilting project of Longzi Lake

After the south lake of Longzi Lake is dredged, its positive effect upon the environment will be revealed in three aspects, namely, improvement of water quality in Longzi Lake, ecological improvement of Longzi Lake and its perimeter and landscape benefit.

After the sewage around Longzi Lake is intercepted and the sewage treatment plant is built, the nutrient enrichments in the lake bottom mud will become the primary pollution source in the water environment of Longzi Lake and a leading factor of the lake eutrophication. The construction of this project can eliminate the widespread pollution by the contaminated bottom mud of Longzi Lake and increase the effective storage capacity of the lake body and self-cleaning ability of the lake while improving its water quality. At the same time with elimination of toxic and harmful substances in the bottom mud, the hydrophytic habitat will be further improved and the growth and reproduction of aquatic life will be promoted. After desilting of Longzi Lake, with afforestation along the bank and restoration of vegetation for surrounding mountain bodies, the ecological environment around the construction site will be improved considerably. Moreover, on the east and west banks of Longzi Lake, typical landscape with the lakeside characteristic will come into being and the overall image of the city will be upgraded.

Desilting and dredging of Yinghe Section of Baligou and Xijiagou

Baligou area features vast land and sparse population with serious widespread pollution because of farmland runoff and difficulty in sewage catchment ；Xijiaogou boasts numerous industrial enterprises in its perimeter with great amount of sewage. As a result the ditches and canals are polluted seriously, which has affected the surrounding ecological environment. After completion of this project, the ditch bottom mud that gives off a foul odor will be cleaned away, the water environment and surrounding eco-environment will be improved, the drainage capacity of ditches and canals will be increased, farmland nearby will be conserved and the added value of land will be raised, which will be conducive to the overall development of the area.

In Huaishang district on the north bank of Huaihe River, supportive work for the storm drainage station will be done, such as extended excavation of No.2 diversion ditch, dredging of a 40-meter canal and excavation and dredging of a diversion canal. After dredging, the drainage capacity of ditches and canals will be increased, the flood discharge passageway will pass unimpeded and the flood


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management and storm drainage functions of the pumping station will be brought into full play.

The Guzhen project involves two parts: dredging of the flood management ditch and dyke building, and dredging of the storm drainage ditch. The dredging of the flood management ditch involves the boundary ditch, railway canal, Wugu River, Liuyuandagou and maintenance squad ditch, and the storm drainage ditch includes Wangsiwei ditch, Wulijing ditch, drain ditch in the March the Eighth part, Suburban drain ditch and Xiaolou station diversion ditch.

The dredging of the above ditches and construction of supportive storm drainage pumping stations will improve the flood management and storm drainage system in the Qizhuang part, Wangsiwei part, Guxi part, Sanbahe part, Dalou part and Xiaolou part in the area south of the Maintenance Squad ditch and east of Huihe River, including Chengguan Town, increase the ability of Chengguan town and its neighboring area to prevent flood and drain storm water significantly and conserve the farmland in the suburbs. It will also ease the effect of natural disasters and increase agricultural income.

The construction of urban sewage pipe network and cleaning and renovation of drainage ditches and canals will incorporate most of urban districts into the urban blowdown system, thereby increasing the collection rate of urban sewage and improving the construction of urban infrastructure. The installation of sewage closure pipeline will strengthen the efforts to conserve the drinking water source, reduce the risk and probability of water pollution in the withdrawal outlet of the urban water works to be built and create favorable conditions for improving the water quality of future urban water works and its normal operation.

The dredging of the flood discharge ditch in Huaiyuan county is mainly designed to desilt the two ponds at TCMH and Camel Ridge and broaden and desilt the three flood discharge ditches in Langanqiao and one mountain foot flood discharge ditch in Xinzhuangzi. The completion of the project will form an effective drainage system at the foot of the west Jingshan Mount and ease the pouring water flow from the north Jingshan Mount and storm drainage pressure in the lower reaches ； Simultaneously with the dredging of the flood management ditch, increased capacity of ponds and improvement of flood discharge capacity, the risk of flood and water-logging disasters and economic losses will be reduced significantly. Dredging of Sanpu canal in Wuhe County

Shanpuwa area enjoys a low-lying terrain and its storm drainage system is not systematic and complete. The Sanpu Lake depression covers an area of 51.0 km2 and in the area there are eight administrative villages of Mohekou Town with a population of 31,300 people and 63,300 mu of farmland. Sanpu Lake depression


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is an area of high yield in Wuhe county, which is susceptible to water-logging. Its grain output will fluctuate with the intensity of the flood and water-logging disasters. The construction of this project is conducive to the formation of Sanpu Lake flood prevention system, which will significantly increase the capability of Sanpu Lake area to prevent flood and drain storm water and be of great significance to protecting the villages and agricultural economy in the area.

7.1.1.2 Construction projects of drainage system

1． Urban drainage project

It is divided into two parts: storm drainage system and sewage drainage system. The construction project of storm water drainage system includes transformation of storm pipe network in the old urban district and construction of a new storm pipe network in the New & Hi-tech Zone and Longzi Lake Park；The sewage pipe network includes extension of sewage pipeline in Zhuizishan part of the old urban district, construction of the drainage system in Baligou part and Yanshan West part in the New & Hi-tech Zone as well as construction of new sewage pipeline in the urban southern part and new sewage pipe network in the Longzihu eastern part.

The construction project of the urban drainage system will reap the following social benefits：① The collection scope of urban drainage will be expanded and storm water and sewage will be separated. The decentralized drainage pipeline in the urban district will be interconnected, which will greatly increase the sewage collection rate of the urban drainage system, help reduce dispersed pollutant discharge outlets and facilitate sewage collection in the long-range plan and perfection of the treatment system.

② Better storm and sewage pipe network will be built up in a complete set in the New & Hi-tech Zone, Longzi Lake Industry Park and urban southern area, thereby forming a drainage system that separates storm water from sewage. This will lay a solid foundation of municipal infrastructure for the development of the new district and promote its economic development and intensify its efforts to invite investments.

③ It will assist in forming the four major drainage systems in the urban district of Bengbu and will be of great significance to attaining the goal of sewage collection rate in the drainage plan and building the sewage treatment plant. It is the prerequisite to achieving the goal set out in the drainage plan and reaping environmental benefits from the sewage treatment project. 2． Drainage project in the suburban county


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The content of the drainage pipeline works for the Guzhen urban district is to install the main pipe for sewage collection in Chengguan town, which will cross Sanba River through the preformed pipe culvert and be discharged into Huihe River after joining Guzhen Sewage Treatment Plan downstream. Its main social benefits lie in creating favorable conditions for the construction of the sewage branch pipe in the urban district of Guzhen in the future and improvement of the sewage system. Besides, it has also laid a solid foundation for normal operation of Guzhen Sewage Treatment Plant. As to its environmental benefit, total pollutant reception volume in Sanba River will be reduced greatly by intercepting the urban sewage to be discharged into Sanba River, thereby improving the water environment. The main content of the construction project for storm water pipe network and road building in the grain and edible oil processing area of Huanyuan town and Chengguan town is to install infrastructure facilities in a complete set in the newly-built grain and edible oil processing area with the purpose of collecting storm water in the processing area effectively and increasing its ability to fight flood and drain storm water, thereby providing infrastructure and safety for the construction and investment promotion of the grain and edible oil processing area.

The main content of the construction project for storm water pipe network and road building in the grain and edible oil processing area of Huanyuan town and Chengguan town is to install infrastructure facilities in a complete set in the newly-built grain and edible oil processing area with the purpose of collecting storm water in the processing area effectively and increasing its ability to fight flood and drain storm water, thereby providing infrastructure and safety for the construction and investment promotion of the grain and edible oil processing area.

7.1.1.3 Construction of the Industry park

The construction project for Mohekou Industry Park in Wuhe county mainly covers the surface water works and water distribution pipe network, sewage treatment plant and road building in the Industry Park. As a provincial development zone approved by Anhui provincial government, Mohekou Industry Park’s development goal is to be gradually built into a major industrial base of fine chemicals and a modern eco-type industry park in Anhui. But it is located in the Sanpuhu depression with undeveloped water conservancy works, frequent flood and water-logging disasters and poor municipal infrastructure and unshaped water supply and drainage and road system, which has restricted the development of the industry park.


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After completion of this project, the drainage system in the Park will be gradually improved and simultaneously with the construction of the storm drainage pumping station, the capability of the Park to prevent flood and drain storm water will be increased greatly, thereby safeguarding its construction and development and making it more capable to attract investments and provide basic physical equipment.

The construction of the surface water works can not only provide the resident enterprises with good industrial water, but also supply drinking water of steady flow and good quality to the dwellers in Mohekou town；Besides, its construction and water supply will also reduce the withdrawal volume of underground water by its surrounding area, thereby conserving underground water resources to some extent.

The construction of the sewage treatment plant can not only collect and handle effectively the industrial sewage in the Park and domestic sewage from dwellers living in the Mohekou town and reduce total volume of sewage discharged into the Huaihe River from the Park to a minimum, thereby easing the pollution of Huaihe River and decreasing the risk of polluting Huaihe River by the industrial sewage from the Park. It can also create sound infrastructure conditions for the rapid and sustainable development of the Park, which is conducive to promoting the economic development of the Park.

7.1.1.4 Road Building

Road building in this project is mainly concentrated on the following areas:

（1）Road building in the economic development zone: 16-30m wide and 1611-4913m long.

（2）Construction of a riverside avenue in Huaishang district and its branch road: red line of the riverside avenue is 20-30m wide and 11.9 km long （ three road bridges）；twenty-one urban branch roads in Huaishang District.

（3）Road building in Mohekou Industry Park：Roads in the Park under planning with a total area of 400,000m2.

（ 4 ） Road building in Chengguan Town Grain & Edible Oil Processing Area in Huaiyuan：Road redline is 15-38m wide and 1050-1850m long.

（5）Guzhen bridge building and road building at top of dyke：river bridge is 15-20m wide, 27 in all；Road at top of dyke is 4.5-6.0m wide and 3-9 m long.Social benefit of road building is to improve the infrastructure in the construction location to facilitate travel by residents and transport of supplies, beautify urban landscape, upgrade overall image of urban district and promote business investments and development of the Park.


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7.1.2 Economic Benefits

7.1.2.1 Disaster-reducing benefit of Tianhe Storm Drainage Station

The economic benefit of water conservancy projects is mainly manifested in the disaster-reducing benefit after improvement of flood management and storm drainage ability. Below is an analysis of the disaster-reducing benefit exemplified by Tianhe Storm Drainage Pumping Station.

Total investment of Tianhe Pumping Station amounts to 67.20 million yuan and the economic benefit after completion of the project is mainly exhibited in the improved ability to prevent flood and drain storm water for realization of disaster-reducing benefit. After completion of Tianhe Pumping Station, if flood occurs to Tianhe once in twenty years, 15000 mu of farmland and 35 villages fewer than those at present will be flooded. Compared with the flood in 2003, 45000 mu of farmland was flooded, 15000 mu of water surface for aquaculture suffered, flood ran into more than 20 villages and 21 pumping stations were flooded, which caused a direct economic loss of 32 million yuan. After completion of this project, the indirect economic benefit from decreased flooded area will come to 10 million yuan at least, accounting for ~14.9% of the investment in the project. If the Tianhe Pumping Station is not to be built, the economic loss due to the seven disastrous years will be equal to the investment cost of the station. In other words, the investment can be recovered in the seven disastrous years.

7.1.2.2 Economic benefit of Mohekou surface water works

The construction investment in Mohekou Surface Water Works amounts to 64.50 million yuan and after its completion the daily water supply will come to 30,000 t/d and the supply covers residents in Mohekou town for drinking water and industrial enterprises in the Park for production water. According to the plan for 2010, Mohekou town will have a population of 35000 people with water consumption of 14600 t/d and industrial water consumption of 21400 t/d；Based on the current price of tap water （1.35yuan/t for industrial water and 1.1yuan/t for drinking water ） the estimated benefit of the new Mohekou Surface Water Works will come to 14.2251 million yuan/a and after deduction of 657,000yuan/a for water resources charge payable by the Works, the actual benefit after completion of the project will amount to 13.568 million yuan/a, accounting for 21% of the construction investment. In other words, the charges collected in five years for water supply after completion of the project will be equal to the construction investment.

Table 84: Estimated benefit from water supply by Mohekou Surface Water Works

Type of water Consumption Price yuan/t Total charges for water


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10000t /d supply, 10000 yuan /a

Industrial water 2.14 1.35 1055

Domestic water 0.46 1.1 185

Other purpose 0.40 1.25* 182.5

Total 3 1422.5

Water resources

charge

3 0.06 65.7

* Average price

7.1.2.3 Economic benefit of Mohekou Sewage Treatment Plant

The construction investment in Mohekou Sewage Treatment Plant amounts to 123.00 million yuan and after its completion the daily handling capacity will come to 30,000 t/d and the service covers industrial enterprises in Mohekou town and the Park for industrial sewage. According to the plan for 2010, Mohekou town will have a population of 35000 people with water consumption of 4600 t/d and industrial water consumption of 21400 t/d；Based on the pollution factor of 0.85 for the total consumption the sewage treatment capacity will come to 22100t/d.

Based on the current sewage price (0.7yuan/t for industrial sewage and 0.6 yuan/t for domestic sewage), the estimated benefit of sewage disposal for the new Mohekou Sewage Treatment Plant will come to 7.235 million yuan each year, accounting for 5.9% of the construction investment. After deduction of operating cost, annual benefit will come to 1.535 million yuan, indicating the economic benefit is very low, which can only maintain normal operation as its environmental and social benefits are dominant.

Table 85: Estimated operating benefits of Mohekou Sewage Treatment Plant

Type of water Consumption

10000t /d

Price yuan/t Total charges for water

supply, 10000 yuan /a

Industrial wastewater 1.82 0.7 465

Domestic sewage 0.34 0.6 74.5

Other wastewater 0.84 0.6 184

Total 3 723.5

Operating cost of 3 0.52 570


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Sewage Plant

7.1.3 Environmental Benefits

7.1.3.1 Environmental Benefits of improved pipe network system

In the improvement project of urban environmental infrastructure the sewage pipeline works is dispersed, but its function is to link up the disconnected sewage pipe network and form a complete sewage system, thereby increasing the network access rate of the sewage significantly. Especially the pipe network construction in the economic development zone and new & hi-tech zone will directly increase the sewage collection amount of Bengbu No. 1 Sewage Treatment Plant (Xijiagou).

Among other things the Zhihuailu sewage lifting pumping station project has achieved the best water collection effect. When the pumping station and its supportive pipe network for the sewage collection area are put into operation, 30,000 t/d of urban sewage will be increased directly, which will be transmitted to the No. 1 Sewage Treatment Plant completely, thereby improving the low utilization of capacity of the sewage treatment plant.

As the current, sewage handling capacity of No. 1 Sewage Treatment Plant reaches 130,000-140,000 t/d only, there is still some way to go to the design capacity of 200,000 t/d.

After completion of the pipe network and pumping station project, the pipe network within the sewage collection range of No. 1 Sewage Treatment Plant will be improved basically and about 50,000 t of sewage will be increased, which can raise the workload of No. 1 Sewage Treatment Plant to 180,000-190,000 t/d, achieving full-load operation in the main.

50,000 t of sewage will be collected into the network and discharged up to the standard after treatment in the Plant, which will cut down total pollutants discharged into Huaihe River markedly.

After calculation, the actual reduction of pollutants is as follows: CODcr 3650 t/a. and ammonia nitrogen 730 t/a. No doubt the pipe network improvement project in the urban district has reaped significant environmental benefits.

7.1.3.2 Control of total volume for the urban drainage project

The construction of the drainage system project in the urban district will raise the collection rate of sewage from the urban district and simultaneously with the construction of the sewage treatment plant, the urban sewage treatment rate will


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be increased significantly. As planned, by 2010 three sewage treatment plants will be built in the urban districts of Bengbu city. The construction of the pipe network for this project will reap its indirect environmental benefit after completion and operation of the supportive sewage treatment plant.

Table 86: Estimated annual volume of sewage discharge in the urban plan of Bengbu

Evaluation

Time

Total

sewage

discharge

10,000 t/d

Treated

sewage

volume

10,000 t/d

Untreated

volume

10,000 t/d

Change in total

volume

t/a

Change in total

volume

t/a

COD ± %Ammonia

nitrogen± %

2005 29.5 10 19.5 20115 3713

2010

49.4 10 39.4 37778 +87.8% 6654 +79.2%

49.4 20 29.4 30478 +51.5% 5194 +39.9%

49.4 32.5 16.9 21353 +6.2% 3369 -9.3%

From the data in the table it is clear that by 2010 with increased population and sustainable development of economy and gradual improvement of sewage closure pipeline, the sewage volume in the urban district of Bengbu will increase by 67.5% over 2005. The implementation of the urban drainage project will lead to a great quantity of sewage being discharged into Huaihe River via the pipe network. Without the supportive construction of the sewage treatment project, total volume of sewage will rise accordingly by a big margin. If by 2010 the current capacity of sewage treatment remains unchanged, namely, Xiajiagou Sewage Treatment Plant still has a handling capacity of 100,000 t /d, then the total discharge volume of COD will rise by 87.8% and ammonia nitrogen will rise by 79.2% over 2005；If by 2010 the first phase works of the supportive Yangtaizi and Hebei Sewage Treatment Plants are put into normal operation as scheduled, the discharge volume of COD will rise by 6.2% over 2005, basically close to the total discharge volume in 2005 and the discharge volume of ammonia nitrogen will decrease by 9.3% over 2005. It is evident that only when the construction project of urban drainage system is interconnected with the sewage treatment project can their role of pollution control be brought into play with actual environmental benefit.

7.1.3.3 Control of total volume for Mohekou Sewage Plant


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Total volume of industrial sewage in Mohekou Industry Park amounts to 30,000 t/d；If each industrial enterprise handles sewage by itself, the emission standard is COD 100mg/L and ammonia nitrogen 15mg/L; If a sewage treatment plant is built, the industrial sewage in all the industrial enterprises in the Park will be discharged into the Plant after pretreatment and the emission standard is COD 50 mg/L and ammonia nitrogen 5 mg/L；The change in total discharge volume based on this calculation before and after establishment of the Treatment Plant is shown in the following table:

Table 87: Statistics of reduction in total volume of the sewage treatment plant in Mohekou Park

Item

Category

Sewage

volume

10000

t/d

COD Ammonia nitrogen

Concentratio

n

mg/L

Discharge

t/a

Concentratio

n

mg/L

Discharge

t/a

Emission after the

pretreatment meets

Integrated Wastewater

Discharge Standard for

Grade I

3 100 1095 15 164.25

Sewage discharge that

meets the Standard after

entering the Treatment

Plant

3 50 547.5 5 54.75

Reduction percent in total

volume, %-50% -66.7%

It is clear that for Mohekou Park ， after the sewage from the enterprises in the Park undergoes centralized treatment in the new sewage treatment plant ， its emission will meet the Discharge Standard of Pollutants for Municipal Sewage Treatment Plant for A, Grade I and the discharge volume will be reduced greatly, of which COD will be cut by 50% and ammonia by 66.7%.

7.1.3.4 Eco-environmental benefit from the vegetation restoration project

The vegetation restoration project mainly focuses on the vegetation restoration for the damaged mountain body around Longzi Lake and Xijaigou side slope


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afforestation. Their eco-environmental benefit is manifested in the following aspects:

1．Revetment and vegetation restoration along the coast of Longzi Lake

（1）In this project the side slope along Longzi Lake is renovated and remodeled by combining natural embankment with solid embankment, which can greatly raise the visual landscape benefit of Longzi Lake. At the same time with vegetation restoration in the south of South Lake and the north outlet to Huaihe River the area of greenbelt around Longzi Lake will be increased. Water birds are attracted to perch here, thereby increasing the natural landscape benefit of Longzi Lake.

（2）In the renovation of the revetment along the bank, the type of embankment that suits the regional terrain, landform and environmental features will be adopted. As a result soil erosion due to bared earth on the side slope and collapse will be eased and simultaneously eco-stream exchange between water and land will be maintained so that sound perching environment may be provided for the growth and restoration of bio-community dwelling at the bank.

（ 3 ） Vegetation restoration in the south of South Lake and the north outlet to Huaihe River will significantly increase the area of greenbelt around Longzi Lake and attract numerous living things to perch and procreate here, which will play a great role in increasing local biomass and bio-diversity. At the same time plants in the wetland can also reduce the mud and sand carried to the lake area due to soil erosion in the perimeter of the Lake area.

（ 4 ） Renovation of side slope around Longzi Lake can block the water from farmland surface runoff and reduce the discharge volume of nitrogen and phosphorus pollutants in the agricultural sewage into the lake.

（5）Vegetation is to be restored in the south lakeside area with an elevation of 17m to19m and north lake outlet to Huaihe River. In the south bank of Longzi Lake an eco-system will be set up in which the terrestrial habitat plant community will transit to the wet emerging plant and submerged plant community in the bank water body. After completion of the project, water from the upper reaches will be converged into Longzi Lake through coastal vegetation and discharge from Longzi Lake will also enter Huaihe River through the outlet to Huaihe River and the plants will purify the water body soundly.

（6）Purification of water body by plants includes direct purification and indirect purification. By direct purification is meant direct elimination of pollutants in the sewage by plants through absorption, adsorption and enrichment. Indirect purification refers to the process in which plants can provide sound environment for elimination of other pollutants in the eco-system, such as supply of oxygen in the plant root zone, enhancement of hydraulic conduction and maintenance of


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aeration. Therefore the construction of this project will play a positive role in improving the water body eutrophication in Longzi Lake.

2．Dredging of Baligou and coastal afforestation project

The completion of this project will coordinate with the improvement of the sewage treatment system in Bengbu city and the coastal sewage interception works. The sewage discharged into Huaihe River from Baligou and Xijiagou will be reduced remarkably and the current water environmental quality in the area will be improved significantly. As both Baligou and Xijiagou are the primary tributaries on the south bank of Huaihe River to which both lead directly, better water quality in them will play a positive role in improving the water quality of Huaihe River. Only when the water quality of tributaries on the way meets the standard, can the overall water quality of Huaihe River reach the Environmental Quality Standard for Surface Water（GB3838-2002）for Grade III. At present the eco-environment around Baligou and Xijiagou is poor. As no dredging has been done for many years, water quality in some river sections has deteriorated and aquatic plants and animals can hardly exist. Numerous pollutants are concentrated in the bottom silts of Baligou and Xijiagou river course. After dredging and broadening of Baligou and Xijiagou river course the contaminated bottom mud will be separated from the river course and internal pollution will be eliminated. In addition, after completion of the project the sewage will be intercepted in the Xijiagou and Baligou area to reduce external pollution. So the water environment in Baligou and Xijiagou will be improved significantly. In the water body of Baligou and Xijiagou river course, zooplankton and phytoplankton as well as bottom dwellers will come into being because of better water quality, forming an aquatic eco-system. The bottom dwellers and microorganisms in water body will biodegrade and improve water quality and such an interaction will further give rise to a virtuous circle of aquatic eco-system.

7.2 Environmental Impacts during Project Construction

7.2.1 Analysis of air impact

In the construction of this project the major air pollution source is dust, odor and tail gas emitted by construction machinery.

7.2.1.1 Analysis of dust impact

Raised dust in construction is produced mainly in the following processes:


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（ 1 ）On the construction site, a large quantity of raised dust from stack soil is produced in mixing of concrete and stacking of bulk powdered materials on the uncovered ground.

（ 2 ） A large quantity of raised dust is produced as the transport vehicles and construction machinery are traveling on the road because of friction between the wheel and road surface.

（ 3 ） Drifting, scattering and raising of the earth loaded in vehicles and bulk building materials in transit, loading and unloading will increase the concentration of dust in the air.

（4）In road building cleaning of road surface, stacking of sand and stone on the roadside and temporary occupancy of land will give rise to widespread pollution by raised dust.

As a whole dust is a major air pollution source in construction. Following is a separate description of the impact of road and site dust upon the atmospheric environment.

（1）Analysis of construction road dust The construction road dust is mainly concentrated in the access road and major transport road in the construction area for each project.

The dust in the construction period can be divided into dusting by wind and dusting by power in terms of its cause, of which dusting by wind is mainly produced from the building materials （sand and cement）stacked in the open air and floating dust on the uncovered surface of the construction area in the dry weather and heavy wind while dusting by power is mainly produced from suspension of dust particles in the handling and mixing of building materials due to external force, of which the raised dust due to construction and loading and unloading vehicles is most disastrous. According to relevant literature, raised dust produced from running vehicles accounts for over 60% of total dust volume and can be calculated by the following empirical formula on the precondition of complete dryness:

Where Q——dust from running vehicles, kg/km•vehicle；V—— speed, km/hr；W—— load, t；P——dust volume on the road surface, kg/m2。Table 7-1-1 shows the dust volume of one 10-t truck that passes through one section road 1 km long on the precondition of different road cleaness and driving


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speed. It is known that if road cleanness remains unchanged, the faster the speed, the greater the dust volume will become while at the same speed the dirtier the road, the greater the dust volume will become. Therefore driving at speed limit and keeping the road clean is an effective means to reduce dust.

Table 88: Car dust with different speed and road cleanness

Unit：kg/vehicle•kmP

Speed0.1(kg/m2) 0.2(kg/m2) 0.3(kg/m2) 0.4(kg/m2) 0.5(kg/m2) 1.0(kg/m2)

5(km/hr) 0.051056 0.085865 0.116382 0.144408 0.170715 0.287108

10(km/hr) 0.102112 0.171731 0.232764 0.288815 0.341431 0.574216

15(km/hr) 0.153167 0.257596 0.349146 0.433223 0.512146 0.861323

25(km/hr) 0.255279 0.429326 0.58191 0.722038 0.853577 1.435539

Another main cause for dust in the construction period is dust raised by wind in the open stackyard and on the uncovered ground. For convenience in construction some building materials have to be stacked in the open air ； The surface soil on some construction sites has to be excavated and piled manually. When it is dry and windy, dust raised can be calculated by the empirical formula for stackyard dusting:

Where Q—— dusting volume, kg/t•a；V50——wind velocity at 50 m from the ground ,m/s；V0——wind velocity for dusting, m/s；W——moisture content of dust particle, %.

V0 is related to the particl size and moisture content and therefore reduction of stacking in the open air, assurance of proper moisture content and reduction of uncovered ground are effective measures to decrease dusting by wind. Dust on the construction site and road can be prevented and controlled by sprinkling water and cleaning. Cleaning with watering can decrease dusting volume by 70～80％ whereas watering after cleaning can inhibit over 90％of dust. Relevant tests have shown that watering for dust removal four to five times a day on the construction site can reduce the dust pollution distance to 20～50m. Spread and diffusion of dust particles in the air has something to do with meteorological conditions including wind velocity in addition to the settling


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velocity of dust particles themselves. Take sand dust for example. The settling velocity of dust particles with different size is shown in Error: Reference sourcenot found, from which it is known the settling velocity of dust particles will increase with particle size rapidly. When the particle size reaches 250 μm, the settling velocity is 1.005 m/s and therefore it may be assumed that when the dust particle is larger than 250μm, the main influence occurs in the near distance range downwind at the dust point. But it is some tiny dust particles that rearly affect the external environment. Depending on the climate on the site, their influence scope will also vary.

Table 89: Settling velocity of dust particles with different size

Particle size, μm 10 20 30 40 50 60 70

Settling velocity,

m/s0.003 0.012 0.027 0.048 0.075 0.108 0.147

Particle size , μm 80 90 100 150 200 250 350

Settling velocity,

m/s0.158 0.170 0.182 0.239 0.804 1.005 1.829

Particle size, μm 450 550 650 750 850 950 1050

Settling velocity,

m/s2.211 2.614 3.016 3.418 3.820 4.222 4.624

The dust influence distance in construction is analyzed by analogy（for monitoring results of dust on the construction site, refer to Error: Reference source not found, at a wind velocity of 2.4 m/s）.Table 90: Monitoring results of TSP concentration downwind on the construction

site

Unit：mg/m3 Distance 20m 50m 100m 150m 200m 250m

Concentration 1.503 0.922 0.602 0.591 0.512 0.406

From Table 90 it is clear that at 50 m downwind on the construction site, TSP concentration is lower than the monitored concentration limit （1.0 mg/m3） for unorganized emission specified in the Integrated Emission Standard of Air Pollutants （ GB16297-1996 ） . The dusting intensity on the construction site is related with many factors including site conditions, construction method, equipment and season, meteorological conditions and soil of the construction location.


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The urban flood management and eco-environment treatment project for Bengbu covers a wide area and most of job sites for flood management and storm drainage are distributed linearly with numerous residential areas nearby, which are susceptible to raised dust and protective measures should be taken. The construction impact is temporary and with completion of construction works the impact of dust upon the environment will also disappear accordingly.

7.2.1.2 Odor

This project involves many dredging works and the odor given off in the desilting and transport of bottom mud will affect the environment.

（1）Rating of odor intensity Odor intensity is rated on the basis of olfactory threshold of odor and odor evaluation is carried out with reference to the Japanese Six-rating Classification of Odor Intensity as shown in Table 91. Grade I standard is equal to 2.5-rating of odor intensity and beyond the intensity scope, odor pollution is thought to have occurred and counter-measures have to be taken.

Table 91: Standard of six-rating classification of odor intensity

（Japanese Environmental Hygience Department）Odor intensity Description of sensation intensity

Odor

intensity

Description of sensation

intensity

0 Odorless 3 Marked odor is sensed

1 Slight odor ( sensitivity threshold) 4 Odor

2Able to distinguish the type of odor

( cognitive threshold)5 Strong odor

（2）Analysis of the impact of odor Intensity of odor pollution is analyzed by analogy.

① With referenect to the dredging project of Nanpaozi in Mudanjiang （ dry excavation in summer ） , odor intensity in the pollution source is surveyed and analyzed as follows:

Table 92: Odor intensity of dredged bottom mud （dry excavation in the dry pond）in Nanpaozi of Mudanjiang

Distance Sensation intensity of odor Rating

alongshore Marked odor 3

30 m from the alongshore Slight 2


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80 m from the alongshore Very slight 1

100 m beyond Odorless 0

② In the lake harnessing project of South Lake in Nanning wet dredging is adopted with the result of slight odor by the lake and basically odorless 50m beyond.

③ Conclusion

Analysis by analogy shows that in the dredging process of this project marked odor is sensed by the ditch；2-rating odor intensity is reached 30m beyond with slight odor, below the limit level of odor intensity （2.5-3.5 rating）and basically odorless 50m beyond.

In this project some dredging sites are near the residential quarters, such as Neigoutang in Niushixiang of Guzhen County, Sanpudagou in Mohekou of Wuhe County and Mochong river approach and some residential quarters are within 30 m from the ditches and ponds to be dredged. What is more, residents just live by the ditch and the dredging project will no doubt affect them, but such impact is temporary and after completion of works this impact will disappear accordingly.

7.2.1.3 Tail gas, smoke and dust pollution

In dyke building and construction of flood road at top of dyke, a large number of transport vehicles and construction machinery will be operated. In the operation of these vehicles and machines tail gas will be emitted. Car and machinery tail gas mainly contains HC, CO and NOX. In melting and spreading asphalt, harmful gases like THC and Bap will be produced and in the operation of construction machinery NO2 and CO waste gas will be emitted. The asphat concrete for the construction project should adopt the plant-mixing method, which is concentrated mixing of materials in the plant production and carried out in the specialized mixing plant with a large size and sound equipment. It should be far away from the construction road （over 300 m away from the sensitive point in particular）. This method can reduce the harmful gas produced in asphat melting. Compared with melted smoke pollution, the spread asphalt smoke pollution is slight and the waste gases like NO2 and CO emitted from construction machinery are fewer and won’t exert a great impact upon the nearby environment.

7.2.2 Analysis of acoustic environmental impact

（1）Intensity of noise pollution source Construction noise is made by machinery and transport vehicles mainly. The noise pollution intensity of this project varies with different phase, site and type of job.


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In the construction period numerous machines are used. As job is done in the open air without any sound insulation and elimination measures, noise is spread far and wide and a big area is affected. For the sound level of machinery in the construction period refer to Table 93.

Table 93: Sound levels of major construction machinery

Type of job Main noise source Sound level

Earthwork Excavators, bull-dozers, loaders and submerged pumps 85～108

Foundation

treatment

Pilers, drillers and caterpillar tractors 96～109

Concrete works Cable hoists, concrete mixers, cranes, concrete delivery

pumps and concrete poker vibrators

95～110

Bridge and road

building

Bull-dozers, road rollers, cable hoists and concrete

spreaders

85～100

Note：The piling process in road and bridge building in the above table is included in the foundation treatment phase.

（2）Analysis of noise environmental impact on the construction site From the analysis of construction pollution source it is known that the noise source on the construction site is mainly the construction machinery that makes great noise and at each construction phase a lot of machinery is in operation on the spot with a sound leve of 85～110 dB(A) for a single unit. These construction machines defy protection. For construction in the open air, noise level can be calculated by the following formula for its attenuation with distance：

Where

L1 and L2———sound level, dB(A) at r1 and r2 from the source；r1 and r2———distance from the noise source,m.

In calculation, r1＝1 m Noise attenuation of each construction machine with distance is shown in Table94.

Table 94: Calculation of noise attenuation of major noise-making machinery in the construction period


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Unit：dB(A)

Type of job

Max.

sound

Level

Distance from construction machinery （m）1 10 20 40 80 100 150 200 300 400

Earthwork 108 100 80 74 68 62 60 56 54 50 48

Foundation

treatment109 101 81 75 69 63 61 57 55 51 49

Concrete works 110 102 82 76 70 64 62 58 56 52 50

Bridge and

road building100 92 72 66 60 56 54 50 48 44 42

In the construction period the construction site should implement relevant provisions in the standard of Noise Limits at Boundary of Construction Site （ GB12523-90 ） . Compared with the Standard, the noise pollution at 40 m beyond the diurnal construction machinery reached the Standard on the precondition of not taking any shock reduction and sound insulation measures and the noise pollution at 200 ～ 300 m beyond the nocturnal construction machinery also met the Standard.

A prediction of the impact of construction noise upon the surroundings was conducted, assuming the distance from the construction machinery to the boundary was 20 m under the preconditions that the noise pollution at 1 m beyond the boundary of the construction site reached the standard of Noise Limits at Boundary of Construction Site（GB12523-90）. The findings are shown in Table95.

Table 95: Calculation of noise attenuation of major noise-making machinery in the construction period

Unit：dB(A)

Construction

phaseContent Time

Distance from construction boundary（m）1 10 20 40 80 100 150 200 300 350

Earthwork and

stoneworkEarthwork

Diurnal 75 72 69 66 61 60 57 55 51 50

Nocturnal 55 52 49 46 41 40 37 35 31 30

PilingFoundation

treatment

Diurnal 85 82 79 76 71 70 67 65 61 60

Nocturnal Prohibited — — — — — — — — —


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Structure

Concrete

Works

Road and

bridge

building

Diurnal 70 67 64 61 56 55 52 50 46 45

Nocturnal 55 52 49 46 41 40 37 35 31 30

For acoustic environmental quality around the construction location, the Measuring Method of Environmental Noise of Urban Area （GB3096-93）for Grade II should be followed , namely, 60 dB(A) for diurnal and 50 dB(A) for nocturnal. From the above table 4-2-3 it is found that the impact of construction noise upon the environment is mainly at the piling phase. On the precondition of ensuring the noise pollution at the boundary of construction site should reach the standard, the diurnal noise pollution at 350 m beyond the boundary at the piling phase should meet the standard and the diurnal noise pollution at 80 ～ 100 m beyond the boundary at the other phases should meet the standard. Residents within 100 m from the construction site will be influenced by the construction noise and residents within 350 m from the construction site will be affected by the construction noise at the piling phase.

The pipe network is laid in the urban area. The perimeter of the engineering line is the prosperous area with dense population, where environmentally-sensitive points are numerous. The construction works will affect the acoustic environmental quality of urban area and cause inconveniences to people’s life. But in line with the features of pipe network engineering, pipeline is laid section by section as a rule and each section is laid within a short cycle. Under the prerequisite of taking environmentally-friendly measures strictly, its impact upon the environment and people’s life will be reduced to a minimum.

Moreover, dyke building （ including road at top of dyke ） , dredging of river course and construction of the culvert station will also exert adverse effects upon the surroundings. But as the construction site is not located in the densely—populated area, its impact is relatively weak.

In the construction of the project attention should be paid to reducing artificial noise and proper sound insulation measures should be adopted. Railings should be set up and great noise-making equipment should be used at an appropriate time. Night construction should be avoided as much as possible to reduce the environmental impact in the construction period. At the same time equipment should be placed selectively and natural conditions should be utilized to reduce noise pollution to a minimum.


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As in the section construction the period for each section is short, noise pollution will not produce a great impact after adoption of environmental protection measures and after completion of works its impact will also disappear.

7.2.3 Analysis of water environmental impact

Waster water in the construction period mainly originates from the operation wastewater and domestic wastewater produced by construction workers.

① Operation waste water

Wasterwater from the dredging project is mainly composed of SS as its main pollutant and operation wastewater mainly comes from the following processes:

A. In the rivercourse dredging works, underground water will seep in the foundation pit.

B. Due to improper management, a lot of mud and sand will flow into water bodies in the excavation and filling of roadbed and poured bored holes, leading to increased suspended matter content in the downstream rivercourse and water body, and turbid water, thereby lowering the water quality.

C. The pollutants in the dredged sludge stacked along the shore will be seeped down or laterally with the runoff into neighboring water bodies under the action of rainfall and surface washing.

D. In the construction of a coffer dam when the dam is settled and bedded, the river bed will be disturbed, making some bottom mud suspended again；when the coffer dam is removed, the residual slurry left over in the dam will be discharged into the river, increasing SS content in the water body for a short time.

E. The operation wastewater produced in concrete curing contains suspended substance as its chief pollutant, which should be precipitated and dried at the designated site by the municipal administration department and discharge into the river, canal, farmland or pond is strictly prohibited.

② Domestic sewage

Discharge of sewage from the residential quarters is always small and the main pollution in domestic sewage is caused by excrement and urine from construction workers and washing water and the chief pollutants are BOD5, COD, phosphate, ammonia nitrogen and suspended substance.

According to the analogy survey, the water quality standard of sewage is COD 300 mg/l, BOD5 150 mg/l,SS 150 mg/l. To ensure the treatment effect of domestic sewage, the excrement and urine have to be pretreated in the septic tank and the treated domestic sewage will be directed to a complete set of small treatment equipment for disposal. For the coastal area of Huaihe River, the sewage of Class


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I has to meet the Integrated Discharge Standard for Grade I before it can be discharged into the lower reaches of the river course under construction. For the coastal area of tributaries of Huaihe River, the sewage of Class II has to meet the Integrated Discharge Standard for Grade I before it can be discharged into the lower reaches of the river course under construction.

7.2.4 Impact of solid waste

In the construction period of the project solid waste mainly covers dirt and crushed stone excavated in the earthwork, stone and ash from construction of buildings and sludge in dredging canals and ditches. Moreover, the resident construction workers will also produce some amount of domestic garbage.

7.2.4.1 Bottom mud in the ditches and canals

Because of high moisture content, the dredged silt stacked along the shore will produce percolate, especially in a rainy day the mud may be washed into the river course, thereby lowering the water quality of water body.

Bengbu Environmental Monitoring Station monitored the indicators including the heavy metals in the river course bottom mud and results show the bottom mud in each monitoring site has met the national standard of soil environmental quality for Grade III and the agricultural requirements set in the Control Standards for Pollutants in Sludges from Agricultural Use （ GB4284-84 ） . It indicates the dredged bottom mud has met the requirements for agriculture and forestry and normal growth of plants and won’t do any harm or pollue the plants and environment. Therefore the dredged silt may be stacked in situ along the shore, put into farmland and forest land and used as earth filling in the road for afforestation and earth equilibrium. In this way the stacking and transport volume of sludge will be reduced and the adverse impact of the dredged silt on the environment will be alleviated.

For the pond in partial urban districts served as the water body for the discharge of domestic sewage, the primary cause of the bottom mud formation lies in the deposition of suspended substances in the sewage （mainly residents’ domestic sewage）. Therefore it is suggested no bottom mud should be used as the soil for the crops that are taken directly by mankind and the mud should be filled and embedded in a sanitary way.

7.2.4.2 Construction Waste

The earth to be shipped out and building garbage in the project to be constructed are ordianary solid waste without any toxic and deleterious components and


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should be used in the foundation filling, depression stuffing or coastal greening for the construction works designated by the municipal and planning departments. The remaining garbage may be shipped to the municipal garbage landfill for filling and embedment and discard disposal usually won’t produce any adverse environmental impact.

7.2.4.3 Domestic Solid Waste

During the construction period the construction workers will produce a given amount of domestic garbage in the daily life. If not disposed of promptly, mosquitoes will multiply at the suitable temperature, odor will be given off and diseases will be transmitted, exerting adverse effects on the surroundings. Therefore on the construction site centralized collection points will be set up and after collection of domestic garbage, it will be shipped out by the municipal sanitary department to avoid impact on the surroundings.

7.2.5 Impact on the Eco-environment

7.2.5.1 Impact on vegetation

In the construction of the project, excavation of surface ground will disturb part of original ground feature and vegetation. In construction a small amount of farmland will be occupied. The impact of engineering construction on vegetation is mainly a short-term effect on the crops and vegetation in the rivercourse shoal. After completion of works the original production function of the farmland can be resumed by secondary ploughing and its impact can be eliminated. In the construction, felling of trees and destruction of vegetation should be minimized and after completion of works the trees felled on the way should be replanted to ensure that vegetation coverage in the area will not be reduced because of the implementation of the project.

The engineering construction will lead to uncovered ground, on which a lot of dust will be raised and covered on the nearby crops and branches and leaves of trees, affecting their photosynthesis and resulting in reduction of crop output. In the flowering period it will also affect fruit-setting of plants and reduct yield. The plants on both sides of the access road are also susceptible to road dust raised by the transport vehicles. In the rainy season the loose soil washed by the rainwater will enter the farmland around the construction site and cause siltation, which will also exert adverse effects on the growth of crops.

As planned in the project to be constructed, upon completion of works ecological restoration will be effected by planting trees chiefly.


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7.2.5.2 Impact on the aquatic life

In the river course dredging project excavation of bottom mud will reduce the quantity of bottom life in the mud. But due to the deterioration of overall water environmental quality in Bengbu, the bottom life is confronted with a bad living environment. After the completion of the dredging project, water quality in the river course will be improved markedly and the living environment for the bottom life will also be restored gradually. In the construction period adverse effects will be produced on the bottom life in the river course, but as a whole, far more gains will be produced than losses.

7.2.5.3 Impact on land utilization

In the construction work part of land along the line will be used. Most of land is farmland, urban construction land and floodland.

The construction work will also occupy part of land for the time being. The temporary occupancy of land will destruct the surface vegetation. Besides, rolling and transport by construction machinery and treading by construction workers will also disturb the vegetation in and around the job area to some extent. Appropriate ecological compensation measures will be adopted. Based on the principle of “whoever destructs the vegetation shall restore it and whoever utilizes the land shall compensate”, after completion of works the development organization will make economic compensations for the losses sustained to the residents on the way from temporary occupancy of land in line with relevant regulations.

7.2.5.4 Analysis of the impact of soil erosion

The construction work will destruct the surface vegetation and ground water and top soil will be lost. At the same time a large quantiy of spoil and dirt is stacked on the construction site and once it rains in the construction period, soil erosion can easily occur.

As the dredged silt covers a large plot area for stacking and vegetation is destructed serously, failure to adopt proper preventive measures will result in the several-fold increase in the soil erosion volume in the place where the project to be constructed is located.

7.3 Environmental Impacts during Operation

7.3.1 Prediction and analysis of water-environmental impact


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This environmental evaluation mainly focus on three aspects to analyze the water-environmental impact, one is the impact of the realized environmental benefits and the discharge total amount of pollutants of the improvement of city drainage system along with construction and operation of the sewage treatment plant in the drainage plan; the second one is the impact of the discharge total amount of pollutants to the Huaihe River of the construction of Mohekou Park’s sewage treatment plant, as well as the reduction effect to the total amount of the pollutants in the Park; And the third one is the Longzi Lake water-environmental impact analysis of the discharge of the generated stack field wastewater during desilting of the Longzi Lake.

7.3.1.1 Water-environmental impact analysis of urban drainage project

7.3.1.1.1 Analysis of urban pollution discharge

Based on the statistics of the amount of river pollution discharge outlets of the city in 2005 and 2006, analyze the ratio of each pollution discharge outlet to the entire urban sewage volume.

Table 96: Statistical table of pollution discharge of city pollution discharge outlet

Name of pollution

discharge outlet

Pollution discharge volume in 2005Pollution discharge volume in

2006

Pollution discharge

volume 10000t/a

Proportion in the total pollution

discharge volume of the city

Pollution discharge

volume 10000t/a

Proportion in the total pollution

discharge volume of the

city

Baligou 1228 11.5% 1649 18.3%

Xijiahou 5080 47.0% 4316 47.8%

No.3 Dock 672 6.2% 336 3.7%

No.1 Dock 669 6.2% 325 3.6%

Jiaotong Road

1185 11.2% 870 9.7%

Longzi Lake 1840 17.0% 1510 16.7%

Baojiagou 100 0.9% 21 0.2%

Total 10744 100% 9027 100%


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From the data in the table, we can see that, among the seven major urban pollution discharge outlets, the pollution discharge volume of Xijiagou is the largest, which accounted for more than 47% of the urban total discharge amount, and followed by Baligou, the Longzi Lake, Jiaotong Road, No.3 Dock, No.1 Dock and Baljiagou. We can also see that, the sewage of Bengbu City can be divided by the Xijiagou, the sewage amount of the west area of Xijiagou is larger, which accounted for more than 60% of the total amount, nearly 154,000 t/d; while the sewage of the east area of Xijiagou is less than 40% of the total, amounting to 104,000 t/d. The total collected sewage amount of the entire urban pollution discharge outlets is about 258,000 t/d.

According to the statistics of 2005, in Bengbu city, the sewage treatment capacity is 25.55 million tons, the industrial wastewater treatment capacity is 16.89 million tons and the total amount of sewage collection and treatment is 42.44 million tons/year. The concentrated sewage treatment rate is about 30%, so the total sewage amount of Bengbu City in 2005 is about 141.47 million tons / year, the ratio of the living wastewater to the industrial wastewater is 3:2.

Statistical analysis chart of pollution discharge volume of Bengbu City pollution discharge outlets is Figure 11

Statistical analysis chart of pollution discharge volume of Bengbu City

pollution discharge outlets

11%

48%6%6%

11%

17% 1%BaligouXijiagouNo.3 DockNo.1 DockJiaotong RoadLongzi RiverBaojiagou

Figure 11: Statistical analysis chart of pollution discharge volume of Bengbu City pollution discharge outlets

Seen from the current distribution of Bengbu City drainage system, the sewage entering the 7 pollution discharge outlets is basically collected by the pipe network. Only the east side of Baligou, east bank of the Longzi Lake and Baojiagou area haven’t formed the pipe network, so the sewage access network rate of the pollution discharge outlets of Baligou and the Longzi Lake takes by 50%, and exclude the sewage of Baojiahou. Accordingly, estimate the actual collection rate of Bengbu City sewage pipe network. Table 97 is the estimated results of sewage collection rate.


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Table 97: Estimated results of collection rate of Bengbu City sewage pipe network

Pollution discharge outlet BaligouXijiago

u

No.3

Dock

No.1

Dock

Jiaotong

Road

Longzi

Lake

Sewage access network rate 50% 100% 100% 100% 100% 50%

Sewage amount of actual

access network 10000 t/d614 5080 672 669 1185 1840

Total amount of the sewage

access network 10000 t/d10060

Total amount of urban sewage

in 200514147

Current sewage collection rate 70%

From the estimated data in the table: the current sewage collection rate of Bengbu City is about 70%, the sewage treatment rate is around 30%, which is close to the average treatment rate 33% of the wastewater in the Huaihe River. It is far below the requirement in the plan of reaching 70% of the concentrated sewage treatment rate till 2010.So it is very important to perfect the construction of sewage closure pipe network and speed up the construction of sewage treatment works.

7.3.1.1.2 Water quality analysis of urban sewage

According to 2005 statistics data of the total amount of pollutants with chemical oxygen demand and ammonia nitrogen index, nearly 100,000 tons of the sewage achieved GB18918-2002 Grade I A standard (CODcr 50mg/L, ammonia nitrogen 5mg/L) after the treatment of Xijiagou sewage treatment plant, and then discharged into the Huaihe River, estimate the water quality of the remaining untreated sewage as the current average concentration of Bengbu City untreated sewage. Figure 12, Figure 13 and Figure 14 are the statistical analysis charts of sewage and pollutants discharge of 7 pollution discharge outlets.

Table 98: Statistical analysis table of water quality of Bengbu urban pollution discharge outlets in 2005

S/NName of pollution discharge

outlet

Volume of

wastewater

10000t/a

CODcr

mg/L

Ammonia

nitrogen mg/L

1 Baligou 1228 255 29.0


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2 Xijiahou 5080 132 29.9

3 No.3 Dock 672 184 44.9

4 No.1 Dock 669 244 34.8

5 Jiaotong Road 1185 256 42.8

6 Longzi Lake 1840 225 41.8

7 Baojiagou 100 236 28.7

Weighted average value 10774 187 34.5

Estimated value of total amount of

pollution discharge in 200510774 15147 2640

Statistical value of total amount of

pollution discharge in 200510774 20115 3713

Deviation ratio (Statistical

value/Estimated value)1.35 1.41

Note: *Estimated value: 100,000 tons/day of the sewage in the total sewage of 2005 is treated effectively and achieved Grade I A standard, estimate the COD, Ammonia nitrogen emissions of the remaining sewage by the weighted average of the seven pollution discharge outlets.

2005 CODcr年蚌埠市区排污口排放量统计分析表

16%

33%6%8%

15%

21% 1%八里沟席家沟三号码头一号码头交通路龙子河鲍家沟

Figure 12: Statistical analysis chart of CODcr emissions of Bengbu City


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Statistical analysis chart of CODcr emissions of Bengbu City pollution discharge outlets in 2005

BaligouXijiagouNo.3 DockNo.1 DockJiaotong

RoadLongzi

RiverBaojiagou

2005年蚌埠市区排污口氨氮排放量统计分析表

10%

40%8%6%

14%

21% 1%八里沟席家沟三号码头一号码头交通路龙子河鲍家沟

Figure 13: Statistical analysis chart of ammonia nitrogen emissions of Bengbu City pollution discharge outlets in 2005

From Table 98, we can see that, if estimate the pollution discharge volume by the weighted average of the urban seven pollution discharge outlets, the value is markedly lower than the actual emissions of the pollutants, so we need to make some adjustments of the weighted average value to make it close to the actual discharge concentration of the sewage. Meanwhile, this environmental evaluation uses reverse deduction method to estimate the water quality of the untreated sewage, the specific methods are: based on the sewage discharge volume, emissions of the pollutants of seven major pollution discharge outlets of Bengbu City in 2005, there is 100,000 tons of sewage can achieve Grade I A standard after the treatment of sewage treatment plant, estimate the emissions of the pollutants of these discharge sewage which already achieved the standard. Take the remaining emissions of pollutants as the untreated sewage emissions, then reverse deduct the water quality of the untreated sewage water. Estimated results are shown in Table 99.

Table 99: Reverse deduction estimate table of water quality of untreated sewage water of Bengbu City in 2005

Project

Wastewater

Discharge

Volume

10000 t/a

COD Ammonia nitrogen

Concentration

mg/L

Discharge

amount

Concentration

mg/L

Discharge

amount


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Statistical analysis chart of ammonia nitrogen emissions of Bengbu City pollution discharge outlets in 2005

BaligouXijiagouNo.3 DockNo.1 DockJiaotong

RoadLongzi

RiverBaojiagou

Statistical

value of total

amount

10774 2.0115 0.3713

Treated

Sewage Up

to Standard

3650 50 0.1825 5 0.01825

Untreated

Sewage7124 257 1.829 50 0.35305

From the data in the table, we can see that, if want to match the actual emissions of pollutants, the water quality of the untreated sewage water shall be CODcr of 257mg / L and ammonia nitrogen of 50 mg/L. Analysis of the estimated data in table 5 and table 6 and take into the full consideration of the fluctuation scope of the water quality of seven pollution discharge outlets, this environmental evaluation final confirms: Among the sewage discharged from the seven pollution discharge outlets of Bengbu City, the water quality of the untreated sewage water is CODcr of 250mg/L and ammonia nitrogen of 45gm/L.

In the following analysis of the total pollutants and the prediction of water-environmental impact, we will use such value as the average water quality of the untreated sewage.

7.2.1.1.3 Total amount control analysis of urban sewage

According to the development planning and drainage plan of Bengbu City, till 2010, Bengbu City's sewage collection system will form the basic network and the total amount of the sewage will be 494,100 m3/d.After the completion of urban drainage projects, if without the newly construction of sewage treatment plants for matching, with the increase of the sewage amount and the concentrated pollution discharge outlets, it may lead to the pollution discharged into the Huaihe River much higher than the total amount of discharge sewage in 2005 and cause the adverse impact to the Huaihe River. The environmental evaluation will analyze the changes of the total amount of Bengbu City’s discharge sewage according to the different levels of sewage treatment. And the prediction evaluation of the water-environmental impact of Bengbu section of the Huaihe River.

The total amount control analysis will estimate the recent planning sewage amount in 2010 by the different sewage treatment capacity.

(1) Based on the current sewage treatment capacity, that is only maintain the treatment capacity of 100,000 tons/day of Xijiagou sewage treatment plant, and the water quality of untreated sewage takes the average value of current water


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quality, then estimate the total amount of the pollutants discharged into the Huaihe River.

(2) Suppose there will be Xijiagou sewage treatment plant only to treat the sewage at full capacity in 2010, with the treatment capacity up to 200,000 tons /day of the design scale, then estimate the total amount of the pollutants discharged into the Huaihe River.

(3) Suppose Xijiagou sewage treatment plant, the Yangtaizi sewage treatment plant and the Hebei sewage treatment plant all completed and put into operation according to plan, then estimate the total emissions of the pollutants.

The yearly different sewage treatment capacity and the estimated results of total emissions of the pollutants of Bengbu City planning are shown in Table 100, Figure 14, Figure 15 and Figure 16.

Table 100: Estimated table of yearly total emissions of the pollutants of

Bengbu City Planning

Evaluatio

n period

Total

emissions of

the pollutants

10000 t/a

Treated

sewage

volume

10000 t/a

Untreated

volume

10000 t/a

Change of total amount Change of total amount

COD Increase or

decrease %

Ammonia

nitrogen

Increase or

decrease %

Current

state of

2005

29.5 10 19.5 20115 3713

2010 A 49.4 10 39.4 37778 +87.8% 6654 +79.2%

B 49.4 20 29.4 30478 +51.5% 5194 +39.9%

C 49.4 32.5 16.9 21353 +6.2% 3369 -9.3%


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01020304050

1000

0t/d

（）

Compari son chart of sewage di scharge amounti n pl anni ng year of Bengbu urban area

Currentcondi t i on of2005A of 2010

B of 2010

C of 2010

Figure 14: Statistical Chart of Sewage Discharge Amount in 2010

08000

16000240003200040000

t/a

（）

Compari son chart of total di scharge amount of CODcri n pl anni ng year of Bengbu Ci ty


B of 2010

C of 2010

Figure 15: Statistical Chart of Total Discharge Amount of CODcr in 2010

0

1500

3000

4500

6000

7500

t/a

（）

Compari son chart of total di scharge amount of ammoni a ni trogen i npl anni ng year of Bengbu Ci ty


B of 2010

C of 2010


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Figure 16: Statistical Chart of Total Discharge Amount of Ammonia Nitrogen in 2010

From the date in Table 100 and Figure 14, Figure 15 and Figure 16, we can see that, till 2010, as the population continues to increase and the sustained economic development, as well as the gradually improvement of sewage closure pipe network, the sewage of Bengbu City will increase greatly, which will increase by 67.5% compared with the current situation of 2005.The implementation of urban drainage projects makes the most sewage discharge into the Huaihe River through the pipes, if without the construction of the matching sewage treatment works, the total amount of pollution discharge will also increase substantially. Till 2010, if still maintain the existing sewage treatment capacity, that is 100,000 tons/day treatment capacity of Xijiagou sewage treatment plant, the total amount of COD emissions will increase by 87.8% compared with that in 2005, while the ammonia nitrogen will increase by 79.2%; if the design treatment capacity of 200,000 tons/day of Xijiagou is under the normal operation, the total amount of COD emissions will increase by 51.5% compared with that in 2005, while the ammonia nitrogen will increase by 39.9%;If the supplementary construction of Yangtaizi sewage treatment plant Phase I and Huaishang Hebei sewage treatment plant Phase I can put into use as the planning, the total amount of COD emissions will increase by 6.2% compared with that in 2005, which is close to the current situation of 2005 basically. And the emissions of ammonia nitrogen will decrease by 9.3% compared with that in 2005.It is evident that the construction projects of urban drainage system must be interconnected with the sewage treatment projects, so as to play the role in control the pollution and have the real environmental benefits.

7.3.1.2 Prediction of water-environmental impact of the Huaihe River

7.3.1.2.1 Current situation of pollution discharge of the Huaihe River

According to the monitoring data in 2006, the flow and the water quality of urban seven pollution discharge outlets and three monitoring sections are shown in Table 101.

Table 101: Statistical table of date of pollution discharge outlet and monitoring section of Bengbu City

No. Name of sectionDistance

kmMonitoring value

Flow

m3/sNH3-N mg/L CODcr mg/L

S1Section of Bengbu

sluice0

Scope of the

Monitoring value

85.2～2940

2.6～4.3 9.2～16.2


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Average value187.68

(dry)3.3 (dry) 16.2 (dry)

W1Baligou pollution

discharge outlet3.6/3.6

Scope of the

Monitoring value

0.2-～1.46

17.4～38.4 120～469

Average value 0.52 25.8 317

W2Xijiagou pollution


Scope of the

Monitoring value

0.3～1.86

1.70～18.8 34～224


W3No.3 Dock pollution

discharge outlet8.4/2

Scope of the

Monitoring value

0.04～0.17

26.6～70.9 117～339


W4No.1 Dock pollution

discharge outlet9.4/1

Scope of the

Monitoring value

0.09～0.13

24.1～58.2 120～464


W5

Jiaotong Road

pollution discharge

outlet

12/2.6

Scope of the

Monitoring value

0.18～0.40

23.0～61.1 117～494


W6Longzi pollution


Scope of the

Monitoring value

0.29～0.65

20.6～56.4 123～214


S2New railway bridge

section17/1.5

Scope of the

Monitoring value0.08～2.96 11.7～21.0

Average value 1.05 16.0

W7Baojiagou pollution


Scope of the

Monitoring value1.21～49.6 25～717


S3 Mohekou section 30.5/4

Scope of the

Monitoring value0.21～2.48 10.7～21.5

Average value 1.05 14.5


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W8

Pollution discharge

outlet of Mohekou

Park

32/1.5

Scope of the

Monitoring value

Average value 0.355

(entering30)

50

(entering450

)

According to the drainage planning of Bengbu City, after the completion of this project, the recent sewage closure projects of Bengbu City in 2010 will be basically completed then, the sewage will be concentrated treated by Xijiagou sewage treatment plant, Yangtaizi sewage treatment plant and Hebei sewage treatment plant. The situation of sewage treatment system of Bengbu City in 2010 is shown in Table 102.

Table 102: Statistical table of drainage of Bengbu City’s sewage treatment plants 10000 m3/d

Name of sewage

treatment plantXijiahou Yangtaizi Hebei (Huaibei) Mohekou Park Total

Current state of 2005 10 — — — 14

Planning of 2010 20 10 2.5 3 35.5

Location of pollution

discharge outlet

(below the Bengbu

sluice)

6.4km 16km 6km 32

Outlet water qualityImplementation of GB18918-2002 Grade I A standard: CODcr 50mg/L

ammonia nitrogen 5mg/L

This environmental evaluation conducts the impact analysis of the water quality of Bengbu section of the Huaihe River (Section of Bengbu sluice-------Mohekou Section) and the prediction indexes are CODcr and ammonia nitrogen.

① Simulation of the pollution discharge section of the Huaihe River

According to the technical guidelines of environmental evaluation, the annual average flow of Bengbu section of the Huaihe River is more than 150 m3/s, which is the large river and can be simplified as the rectangular straight river.

② Simplify the pollution sources. Based on the evaluation level and the actual situation of Bengbu section of the Huaihe River, simplify the pollution sources as the consecutive constant emission point sources. The main sources of this system are: Xijiagou sewage treatment plant, Yangtaizi sewage treatment plant, Hebei


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sewage treatment plant and the sewage treatment plan of Mohekou Park, the upstream inflow of Bengbu sluice is also considered to be one influent pollution source of this system.

7.3.1.2.2 Choice of mathematical model

This evaluation uses meandering river steady-state mixed cumulative flow model, predict and evaluate the impact degree and scope of the project’s sewage to the water body of downstream.

Non-persistent pollutants：

q=huy

Mq=h2uMy

Of which：x—The distance between the prediction point and the discharge point, m;

y--Horizontal distance between the prediction point and the discharge point, m;

K1--Degradation coefficient of the pollutants in the river, 1/d;

c--Concentration of the pollutants at the prediction point(x,y), mg/l;

a—The distance between the sewage discharge outlet and the riverbank0≤a≤B), m.

cp--Concentration of the pollutants in the sewage, mg/l;

Qp—Sewage flow, m3/s;

ch—Concentration of the pollutants in the river upstream (background concentration), mg/l;

h--Average depth of the river, m;

My—Horizontal mixed (diffusion) coefficient of the river, m2/s;

u—Flow speed of the river, m/s;

Qh—Flow rate of the river, m3/s;

According to the provisions of NJ/T2.3-93,the horizontal mixed coefficient My is calculated by Taylor method:

Of which: h--Average water depth, m;RIg00002 A17978/CIGZ070287

XDH/GDMAugust 2007

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g-- Acceleration of gravity,m/s2;

I—Hydraulic gradient, m/m;

B—River width, m.

The estimated value of parameter K1 is determined by two-point method:

Of which: ΔX—Section distance of up-down stream, m;

C1, C2—Concentration of the pollutants of the up-down stream water body, mg/L;


Evaluation scope, period and contents of the projection

The evaluation scope of surface water-environmental impact is the Bengbu section of the Huaihe River, and within the downstream 1500 of pollution discharge outlet of sewage treatment plant in Mohekou Fine Chemical Industrial Park (Sanpu River drainage pump station) with the distance of 32km.

The contents of prediction include:

① Simulation of the current water quality to determine the parameters of water quality;

② Predict the water quality under the normal operation after the completion of the sewage treatment plants and evaluate the conditions of the water quality;

③ Predict the water quality of the accidental discharge of the sewage treatment plants and risk analysis the degree of the effects.

7.3.1.2.3 Parameter determination of the Huaihe River water system simulation

Because the flow of the Huaihe River changes greatly in the different years and seasons and affected by various upstream lock gates and other gates substantially. The environmental evaluation is intend to use the average flow 187.68m3/s of the Huaihe River during the drought period in the recent ten years, suppose there is no other influents, just has different pollution discharge outlets, then predict the impact of pollution discharge to the water environment of the Huaihe River.

Based on the monitoring data of the routine monitoring sections of Bengbu in 2005, according to the current pollution discharge volume and the concentrations of pollutants of the seven pollution discharge outlets, as well as the locations of pollution discharge outlets, we can calculate the attenuation coefficient


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KCOD=0.12d-1, KAmmonia nitrogen=0.08d-1 by using formula (1), formula (2) and the parameters.

7.3.1.2.4 Prediction of water quality of Bengbu section of the Huaihe River

① Prediction of the water quality of the sewage treatment plants under the normal operation

Till 2010, the total amount of Bengbu City’s sewage is about 494,000 m3/d, the total sewage treatment capacity of three urban sewage treatment plants and one Park’s sewage treatment plant is about 355,000m3/d, that is the urban sewage treatment rate shall reach 72% after the completion of the sewage treatment plants, which is in line with the requirements of 70% sewage collection treatment rate of the 2010 drainage planning. Summary of the inlet and outlet water quality of the four sewage treatment plants is shown in Table 103.

Table 103: Summary statement of inlet and outlet water quality of the sewage treatment plants

Name of

sewage

treatment

plant

Inlet water quality

Outlet water

quality

Grade I A

standard

Water quality of

accidental

discharge

(By 30% of the

treatment rate)

Water quality of

untreated Sewage

(Sewage system of

the south of the

City)

CODc

r

Ammonia

nitrogen

CODc

r

Ammonia

nitrogen

CO

D

Ammonia

nitrogen

CO

D

Ammonia

nitrogen

Xijiahou 350 40 50 5 245 28 250 45

Yangtaizi 320 35 50 5 224 24.5 250 45

Hebei 400 35 50 5 280 24.5 250 45

Mohekou

Park450 30 50 5 315 21.0 250 45

After the completion of the sewage treatment plants, the outlet water quality under the normal operation is in line with the GB18918-2002 Grade I A standard, the remaining untreated sewage will be mainly from the sewage system of the south of the City in the future planning, which will be discharged. See details in Table 104.

Table 104: List of prediction contents of water environment of Bengbu section of the Huaihe River in 2010

Proposal Conditions of prediction Pollution discharge outlet


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A

Suppose the four sewage treatment plants all

discharge up to standard

The remaining sewage will be discharged into the

Huaihe River through Xijiagou

Four pollution discharge

outlets (Xijiagou, the Longzi

Lake, Small Bengbu Station,

the Sanpu River drainage

station)

B

Suppose the three urban sewage treatment plants

all discharge up to standard

Accidental discharge of Mohekou Park

C All the sewage treatment plants discharge with the

failure to meet the standard

D

Completion of sewage treatment plant in the south

of the City (155,000 t/d)

Discharge all the sewage up to the standard

Specific conditions of the prediction for each proposal and the parameters selection are shown in Table 105.

Prediction parameters selection: The flow of upstream inflow of Bengbu sluice uses the average flow of 187.68 m3/s during the drought period of many years, the average flow speed is 0.11m/s; The background concentration of the pollutants uses the on-line monitoring average concentration CODcr for 16.2mg/L and ammonia nitrogen for 3.3mg/L during the drought period of Bengbu sluice section of the Huaihe River.

Table 105: Summary statement of conditions of prediction and parameters

Proposa

l

Name of

pollution

discharge outlet

Name of

sewage

treatment plant

Location of

pollution

discharge outlet

(From section of

Bengbu sluice)

Water

amount

10000

m3/d

Water quality mg/L

CO

D

Ammonia

nitrogen

Proposa

l A Xijiahou

Xijiahou

6km

20 50 5

Untreated

Sewage outlet13.9 250 45

Small Bengbu

Station

Huaishang

Hebei

6km 2.5 50 5

Longzi Lake Yangtaizi 15.5 10 50 5


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Sanpu River

pump stationMohekou Park 32 3 50 5

Proposa

l B

Xijiahou

Xijiahou

6km

20 50 5

Untreated


Small Bengbu

Station

Huaishang

Hebei6km 2.5 50 5


Sanpu River


Proposa

l C

Xijiahou

Xijiahou

6km

20 245 28

Untreated


Small Bengbu

Station

Huaishang

Hebei6km 2.5 280 24.5

Longzi Lake Yangtaizi 15.5 10 224 24.5

Sanpu River


Proposa

l D

XijiahouXijiahou

6km 33.9 50 5South of city

Small Bengbu

Station

Huaishang

Hebei6km 2.5 50 5


Sanpu River


This environmental evaluation conducts the prediction and analysis of water-environmental impact of Bengbu section of the Huaihe River according to the above four different drainage proposals, the prediction results are shown in Table106, Figure 17, Figure 18 and Figure 19.

Table 106: Prediction table of water quality of the sewage treatment plant under the operation period


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Prediction section

Proposal A Proposal B Proposal C Proposal D

CODc

r

Ammonia

nitrogenCODcr

Ammonia

nitrogenCODcr

Ammoni

a nitrogenCODcr

Ammonia

nitrogen

Section of Bengbu

sluice (Initial

concentration)

CODcr 16.2mg/L, ammonia nitrogen 3.3mg/L.

New railway bridge

section28.13 5.15 28.13 5.15 50.13 7.70 21.62 3.78

Mohekou section 21.72 4.38 21.72 4.38 33.60 5.87 16.26 3.17

Downstream 3.5km

of Mohekou section21.57 4.34 26.11 4.61 37.32 6.04 16.35 3.16

The distance of the

resumption to the

section of Bengbu

sluice (COD

16.2mg/L, ammonia

nitrogen 3.3mg/L)

22km 32km 26km 34km 57km 67km2.4k

m—

GB3838-2002

Class Ⅲ water bodyCODcr 20 mg/L, ammonia nitrogen 1.0 mg/L.

From the data in Table 106 and Figure 17, Figure 18, Figure 19 and Figure 20, we can see that, the change trend of the concentration of pollutants in each evaluation section is: The water quality of new railway bridge section is in the rapid decline compared with the section of Bengbu sluice; the water quality of the downstream of Mohekou section is slightly better than in new railway bridge section, but still has some pollution compared with the water quality of the upstream inflow. For the prediction value of Mohekou section, the results of proposal A is clearly better than proposal B, which reflects the water quality of the sewage of Mohekou Park having the greater impact to the water quality of the Huaihe River.

The main difference between the proposal A and proposal B is that the water quality of downstream 3.5km of Mohekou section (downstream 2km of pollution discharge outlet of Mohekou Park) is close to the water quality of upstream inflow of Bengbu sluice basically. It indicates that once the sewage treatment plant can effectively play its sewage treatment capacity to ensure the tail water of the sewage treatment plant discharge up to the standard, then it will have little environmental impact to the downstream of Bengbu section of the Huaihe River.


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The prediction results of proposal C show that, if the sewage treatment plants can not discharge the tail water up to the standard, the COD and ammonia nitrogen of new railway bridge section will over the standard of Class III water body; the prediction results of Mohekou section show that, through the attenuation of nearly 30km of Bengbu section, the ammonia nitrogen concentration in the sewage is still over the standard, which indicates the water quality of sewage discharged from Bengbu to the Huaihe River has the greater impact to Bengbu section of the Huaihe River and its downstream and it has the great significance for whether the water quality of the downstream of the Huaihe River can maintain the function of Class III water body.


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Figure 17: 2010 Urban Drainage Proposal C, D - Prediction Chart of CODcr Discharge ImpactRIg00002 A17978/CIGZ070287

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Bengbu Watergate

Xintie Bridge

Mohekou

Bengbu Watergate

Xintie Bridge

MohekouProposal BLevel of Bengbu Watergate

Proposal ALevel of

Bengbu Watergate

Figure 18: 2010 Urban Drainage Proposal C, D - Prediction Chart of CODcr Discharge ImpactRIg00002 A17978/CIGZ070287

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Bengbu Watergate

Xintie Bridge

MohekouProposal CLevel of Bengbu Watergate

Bengbu Watergate Xintie

BridgeMohekou

Proposal DLevel

of Bengbu

Figure 19: 2010 Urban Drainage Proposal A, B - Prediction Chart of Ammonia Nitrogen Discharge ImpactRIg00002 A17978/CIGZ070287

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Level of Bengbu

Proposal ABengbu

Watergate

Xintie Bridge

Mohekou

Level of Bengbu

Proposal BBengbu

WatergateXintie Bridge Mohekou

Figure 20: 2010 Urban Drainage Proposal C, D - Prediction Chart of Ammonia Nitrogen Discharge ImpactRIg00002 A17978/CIGZ070287

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Proposal CBengbu

WatergateXintie Bridge

MohekouLevel of Bengbu Watergate

MohekouProposal D

Bengbu Watergate Xintie

Bridge

Through the water quality prediction, this environmental evaluation put forward the following suggestions:(1) Bengbu shall actively operate the supporting construction of the sewerage treatment projects and need to accelerate the pace of development; the urban infrastructure construction, especially the construction of the sewage pipe network and sewage treatment plants project shall be coherent with the development of the Bengbu new district. To ensure the Bengbu section of the Huaihe River maintains the function of Class III water body basically, the new construction and expansion of the sewage treatment plants is imperative. Meanwhile, monitor and predict the serious situation of ammonia nitrogen index exceeding the standard of the water quality, as well as the treatment requirement for the ammonia nitrogen of 5mg/L in the Grade I A standard for the urban sewage treatment plants, we suggest the sewage treatment plants shall take into the enough consideration of the ammonia nitrogen removal efficiency when choosing the sewage treatment process. Treatment process must have strong capacity to remove the phosphorus and nitrogen.(2) In order to minimize the pollution load to the downstream Bengbu of the Huaihe River, we shall in particular, strengthen the monitoring works for the sewage treatment discharge up to the standard of Mohekou Park. Especially the industrial and mining enterprises within the Park must do the pretreatment discharge up to the standard, from one hand, we shall avoid the industrial enterprises in the park to discharge the sewage into the Huaihe River directly; from the other hand, we shall prevent the pretreatment of the enterprises over the standard, further leads to the pollution load of the sewage entering the sewage treatment plant is too large for the normal operation, then a large amount of industrial wastewater will collection discharge with failure to meet the standard, which will cause the serious environmental pollution to the water environment of the Huaihe River. Thus, the emissions of industrial wastewater with the failure to meet the standard of Mohekou Park become the potential risk for the downstream water environment of the Huaihe River.

7.3.1.3 Water-environmental impact analysis of Mohekou sewage treatment plant

7.3.1.3.1 Water-environmental impact analysis during the normal operation period

(1) Investigation on Current Situation of Regional Surface Water

For the sewage treatment plant of Mohekou industrial Park and the supplementary pipe network project are still in the planning, the generated sewage of the enterprises within the Park and some living sewage of Mohekou town are discharged into the Huaihe River through Sanpu big ditch. Sanpu big ditch and the bypass channel of the Mochong River are two artificial irrigation


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ditches, the gates to the Huaihe River are basically closed except the flood discharge.

(2) The main contents of the prediction

After the completion of the sewage treatment plant, the enterprises sewage within the Park and the living sewage of the town will not be discharged into Sanpu big ditch directly any more; after the treatment, the sewage will achieve Grade 1 A standard, then is discharged into the bypass channel of the Mochong River and flows southward to the Huaihe River.

This evaluation mainly predicts the impact of the water quality of the Huaihe River after the completion of the projects, forecasts the contribution value of the concentration of the of the pollutants in the river because of the sewage discharge of the sewage treatment plant, as well as the distribution of the concentration of pollutants in the river.

(3) Predictive factor and model

Predictive factor

The predictive factor of water-environmental impact is COD.

Predictive model

This evaluation uses meandering river steady-state mixed cumulative flow model, predict and evaluate the impact degree and scope of the project’s sewage to the water body of downstream.

Non-persistent pollutants:

q=huy

Mq=h2uMy

Of which：x—The distance between the prediction point and the discharge point, m;

y--Horizontal distance between the prediction point and the discharge point, m;

K1--Degradation coefficient of the pollutants in the river, 1/d;

c--Concentration of the pollutants at the prediction point(x,y), mg/l;

a—The distance between the sewage discharge outlet and the riverbank0≤a≤B),m.

cp--Concentration of the pollutants in the sewage, mg/l;RIg00002 A17978/CIGZ070287

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Qp—Sewage flow,m3/s;

ch—Concentration of the pollutants in the river upstream (background concentration), mg/l;

h--Average depth of the river, m;

My—Horizontal mixed (diffusion) coefficient of the river, m2/s;


Qh—Flow rate of the river, m3/s;

According to the provisions of NJ/T2.3-93,the horizontal mixed coefficient My is calculated by Taylor method:

Of which: h--Average depth, m;

g-- Acceleration of gravity,m/s2;

I—Hydraulic gradient, m/m;

B—River width, m.

The estimated value of parameter K1 is determined by two-point method:

Of which: ΔX—Section distance of up-and down-stream, m;

C1, C2—Concentration of the pollutants of the up-down stream water body, mg/L;


According to the statistics of Hydrologic Data in the calendar years of Bengbu section of the Huaihe River, the average flow of the Huaihe River during the drought period in the recent ten years is 187.68 m3/s, during the gate close period, Bengbu section of the Huaihe River just has the discharge of 12.5 m3/s under the gate open. Considering the gate close during the drought period of Bengbu sluice of the Huaihe River, we can get the relationship of the flow speed and the flow:

u=0.01025Q0.8733

Parameter Selection

The specific hydrological parameters are as follows: Uclose=0.009m/s; Qclose=12.5 m3/s; h=3.0m;B=300m; I=2.9*10-5;K=0.16L/d (Select the water


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capacity of Bengbu City to check the experience value of the research result, and use two-point method to check the routine monitoring data of the sections of the Huaihe River); My=0.062m/s; Ch=12.2mg/L (Monitor the maximum COD of the current situation).The treatment scale of the sewage treatment plant is 30,000 m3/d, during the normal discharge of the sewage: Qp=8.33 m3/s;Cp=50mg/L.

Prediction Result

Integrate the prediction parameters into the formula to calculate the COD prediction result of each monitoring section after the completion of the projects. Prediction results are shown in Table 107.

Table 107: Prediction results of water quality during normal operation period of the sewage treatment plant

Unit: mg/L

C(mg/m3) y

x30m 60m 90m

120

m

150

m

180

m

210

m

240

m

270

m

300

m

Downstream 50m of pollution discharge outlet22.1

4

13.4

9

12.1

3

12.0

8

12.0

8

12.0

8

12.0

8

12.0

8

12.0

8

12.0

8


1

15.6

2

12.6

7

12.0

2

11.9

6

11.9

5

11.9

5

11.9

5

11.9

5

11.9

5


7

16.5

9

13.8

6

12.4

0

11.8

7

11.7

3

11.7

1

11.7

1

11.7

1

11.7

1


3

15.3

0

14.1

0

12.9

7

12.1

0

11.5

4

11.2

3

11.0

9

11.0

4

11.0

2

Downstream 1,000m of pollution discharge

outlet

13.3

7

13.0

5

12.5

8

12.0

4

11.5

0

11.0

3

10.6

5

10.3

7

10.1

8

10.0

7


outlet

12.2

0

11.9

9

11.6

8

11.3

0

10.9

0

10.5

2

10.1

99.92 9.72 9.57


outlet

10.1

0

10.0

09.85 9.66 9.44 9.22 9.00 8.80 8.63 8.49


outlet7.93 7.88 7.81 7.72 7.62 7.50 7.38 7.26 7.15 7.05

Limit value of COD in ClassⅢ standard of Environmental Quality Standards for Surface Water (GB3838-2002)is 20mg/l.From the prediction results, we can see that: The COD concentration at downstream 200m of pollution discharge outlet


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can just reach the standard; the COD concentration at downstream 1300m can just achieve the background concentration.

The sewage causes a certain degree of pollution to the water quality of the Huaihe River within the downstream 1300m of the pollution discharge outlet.

Impact Analysis

After the implementation of the sewage treatment works, the ecological impact is mainly the positive impact, the main negative impact is shown in the impact to the surrounding ecological environment of the pollution discharge outlet, with the smaller impact to the terrestrial ecological environment.

(1) The impact to the surrounding ecological environment of the pollution discharge outlet

The sewage is collection discharge after the closure treatment, there will be considerable non-removal suspended solids and sediments to discharge into the Huaihe River along with the sewage. The surrounding sediments of the pollution discharge outlet will have some impact to the species and quantity of the benthic organism. Meanwhile, for the collection discharge of the sewage, it will form a certain length of the pollution belt near the downstream of the pollution discharge outlet. The original aquatic habitat will be destroyed in the pollution belt, and the species of the aquatic organism will be decreased, while the number of the tolerance organisms will be increased and the species diversity within the pollution belt will be reduced. However, for the width of the pollution belt will not cover too large area of the river, along with the larger flow of the Huaihe River, although it will cause some pollution of the local water, there will be no significant impact. Therefore, the collection discharge of the sewage after the closure treatment will have the little impact to the growth of the surrounding fish and aquatic organisms of the pollution discharge outlet.

(2) Eutrophication problem of the water body

Phosphorus, nitrogen and other pollutants in the living sewage are the essential nutrients for the growth of the aquatic plants. When the river flow is quick and the speed is fast, the impact of the nutrient enrichment is little, but when the river flow is slow, the sediment volume of nitrogen, phosphorus and other nutrient salts will increase accordingly, which may cause the eutrophication problem of the water body.

If not take into the consideration of the removal function of the nitrogen, phosphorus and other nutrient salts in this process, or the removal rate is lower, it may result in the eutrophication of local water, such as the surrounding water of the pollution discharge outlet.

(3) Heavy metal


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In addition, the influent to the sewage treatment plant contains the industrial sewage, which contains the heavy metals in the sewage, while these pollutants will have a chronic, long-term cumulative impact in some organisms. It will have the enrichment of the heavy metals in the fish, further affect human health with the food chain.

(4) Mitigation Measures

In the sewage treatment process design, we shall consider increasing the removal rate of nitrogen, phosphorus and other nutrient salts. At the same time, strengthen the monitoring and management works of the water quality of the surrounding water of the pollution discharge outlet and control the changes of the downstream water quality of the pollution discharge outlet timely.

Sewage treatment plants shall comply with the requirements of CJ3082-1999 “Quality Standard of Wastewater Discharged into Urban Sewer Pipe” and GB18918-2002 “Pollutant Discharge Standard of Municipal Wastewater Treatment Plant” strictly, strictly control the industrial sewage, especially for the special sewage containing heavy metals and other harmful substances, to ensure the normal operation of the sewage treatment plants and the discharge of the tail water up to the standard.

7.3.1.3.2 Impact analysis of environmental accidental risk

(1)Environmental risk of non-normal sewage discharge

Based on the analysis of the biological treatment mechanism of the sewage and the practices of the domestic similar sewage treatment plants, the main reasons of untreated sewage overflow of urban sewage treatment plants are as follows:

① Because of the quality problems or improper maintenance of the sewage treatment equipments and facilities, it will cause the malfunction of the equipment and facilities, further lead to the decline of the sewage treatment efficiency or even the direct discharge of the untreated sewage.

② In case of a power cut of the sewage treatment plant, it will lead to the direct discharge of the untreated sewage. Both of the above circumstances will have an impact on the water quality of the Huaihe River.

The possible sudden and non-sudden accidents of the sewage pipe network and sewage treatment system of the sewage treatment works during the normal operation will affect the normal operation of the sewage treatment plants and have a serious impact to the environment. For example: because of the pipeline jam, pipeline rupture and damage of the pipe joints, cause the bulk sewage outflow and the contamination of surface water and groundwater; a large amount of over-standard industrial sewage joins the urban pipe network, thus leads to the substantial increase of the influent concentration, then cause the effluent of the


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sewage treatment plant can not meet the standard; because of the power cut, equipment damage, abnormal operation of the sewage treatment structures, cause a large number of non-efficient treated sewage be discharged into the receiving water body directly, which results in the accidental pollution.

The assumed condition of the risk impact is: the sewage will be discharged into the bypass channel of the Mochong River directly after the Grade I treatment, after that, it will be discharged into the Huaihe River. The COD removal rate of Grade I treatment is only 30%, the urban sewage treatment plants collect and treat the distributed sewage, then discharge the sewage into the water body, so if the sewage treatment plants have the accident, it will change the more points pollution to a single point collection pollution, which will increase the pollution impact to the water body. Prediction results are shown in Table 108.

Table 108: Prediction results of accidental discharge water quality ofthe sewage treatment plant

Unit: mg/L

C(mg/m3) y

x30m 60m 90m 120m 150m 180m 210m 240m 270m 300m

Downstream 100m of pollution discharge outlet 102.88 77.55 36.57 16.76 12.44 11.98 11.95 11.95 11.95 11.95



Downstream 1,000m of pollution discharge outlet 33.83 33.06 30.90 27.74 24.10 20.49 17.30 14.75 12.89 11.63



From the table, we can see that: The COD of the pollution discharge outlet is over the standard seriously during the accidental risk discharge, the COD at downstream 100m is 5.1 times of the Grade III standard, the generated impact of accidental discharge is very huge. Therefore, the design of the sewage treatment plant shall strictly prevent the occurrences of the risk, need to use the dual power supply and standby pump, meanwhile, the operation must strictly follow the procedures and steps to prevent the accidents. In addition, the environmental management departments shall also take some supervision measures for the sewage treatment plant, so as to promote the management of the sewage treatment plant and ensure the normal operation.


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7.3.1.4 Water-environmental impact analysis and prediction of the Longzi Lake desilting projects

7.3.1.4.1 Standard analysis of treatment of dredging project engineering wastewater

The pollutants in the dredging project engineering wastewater mainly come from the containing pollutants in the water body of the construction site and the enrichment of N, P and heavy metal pollutants in the sediment particles, as long as we control the concentration of emissions of the suspended solids in the wastewater, we can effectively control the concentration of the emissions of other pollutants.

According to the research results of the experimental simulation of the silt of the Sea of Grass, the Dianchi River: The pollutant content in the wastewater will decrease along with the increase of the silt sedimentation time, rest for 48h, the concentration of the pollutants in the wastewater can basically meet the Grade I standard of the sewage integrated emission standard, but the concentration of the suspended solids might not reach the Grade I standard. If the rest time is less than 48h, the concentration of the pollutants in the wastewater will over the Grade I standard of the sewage integrated emission standard. According to the design of this project’s stack field, the silt sedimentation time is generally over 48h, but the silt sedimentation time may be shorten at the later period of the construction, which is not less than one hour generally. Then even not treat it, there will still be no heavy metals pollution, but the secondary pollution of nitrogen, phosphorus, organic matters and suspended solids is inevitable. At this time, we can add the chemical treatment to decrease the concentration of the pollutants in the wastewater.

Table 109: Dredging wastewater composition of silt of the Sea of Grass

(results of experimental simulation)

Experimental

ConditionpH SS

Chromaticit

y

CODM

n

TN TPNH4-

NCu Pb Zn Cd As

Muddy

water at

the

mouth of

the

Daguan

River

Rest for 1h6.

0932 41 26.4

23.

3

0.25

317.8 0.05

0.0

3

＜0.01

＜0.01

0.01

9

Rest for

48h

6.

071 34 7.67

16.

9

0.08

012.9 0.01

＜0.01

＜0.01

＜0.01

0.00

6

Backgroun

d of the

River

6.

486 8 6.74

11.

8

0.75

08.91

0.00

2

0.0

2

0.03

9

0.00

3

0.00

7


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Muddy

water at

the

mouth of

the

Yunliang

river

Rest for 1h6.

0

101

363 65.8

25.

2

0.10

021.7 0.11

0.0

40.08 0.01

0.06

8

Rest for

48h

6.

283 58 10.6

24.

3

0.04

221.4 0.02

0.0

20.01

＜0.01

0.02

9

Backgroun

d of the

River

6.

468 9 7.58

9.7

5

0.85

77.49

0.00

8

0.0

3

0.04

6

0.00

6

0.02

6

Grade I of integrated

emission standard

6-

970 50 100 — 0.5 25 1.0 1.0 4.0 0.1 0.5

7.3.1.4.2 Water-environmental impact prediction of the surface water due to the stack field wastewater discharge

Prediction Model

The prediction model uses the River advection model of the big River (reservoir) under the no wind state for prediction, the model is recommended by Technical Guidelines for Environmental Impact Assessment (HJ/T2.1-2.3). The prediction model is as follows:

……………

Of which: r——The distance between the prediction point and the pollution discharge outlet, m;

Cr--Concentration of the pollutants at the prediction point, mg/l;

Qp—Sewage flow, m3/s;

Cp--Concentration of the pollutants in the sewage, mg/l;

H——Average depth of the River reservoir, m;

φ——Mixing angle, arc, take π radian at the straight shore;

K1——Degradation coefficient of the pollutants in the River reservoir, 1/d;

Cp--Background concentration of the pollutants in the River reservoir, mg/l;

Determination of parameters

The dredging scope of the Longzi Lake is about 3.449 million m2 of the River bottom of the South River district, according to the analogy investigation, the water content of the silt of the dredging projects is 90%, the water content of the silt of pump inhalation is 95% and the water content of the silt at stack field is


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90%.If the high pressure water gun can not recycle the project engineering wastewater, the generated total amount of the project engineering wastewater is about 1.15 million m3, calculate by 8 months to complete the project, the daily water discharge amount is 4792 m3/d.Suppose the high pressure water gun can recycle the project engineering wastewater, take into the full consideration of the construction period and other factors such as evaporation, the determined emissions of project engineering wastewater after the recycling can be decreased by 50%, that is the emissions of project engineering wastewater is about 580,000 m3, calculate by 8 months to complete the project, the daily sewage discharge amount is 2396 m3/d, nearly 0.67 m3/s.

The practice results of dredging project of the Sea of Grass, the Dianchi River show that: Most of the pollutants in the dredging slurry are concentrated in the suspended particles, as long as we can strictly control the emissions of the suspended particles into the receiving water body, most of the pollutants can be trapped in the stack field. The monitoring and test results of the Dianchi River Dredging project show that, the nitrogen and phosphorus content in the different dredging areas and under the different dredging operation conditions is very different accordingly. Now, we convert the test results of the water quality of the wastewater in the different dredging areas and different time uniformly to SS=100mg/L, then the values of T-N, T-P are shown in Table 110.

Table 110: Nitrogen and phosphorus contents during SS equivalent in the different dredging areas of the dredging project of the Sea of Grass, the Dianchi

River.

Index Monitoring period Stack field 1 Stack field 2 Stack field 3 Stack field 4

T-N

mg/L

The first time 6.39 0.855 0.77 1.2

The second time 8.31 1.76 10.2 1.8

T-P

mg/L

The first time 0.845 0.043 0.043 0.071

The second time 1.21 0.100 0.044 0.099

From the date in the table, we can see that, the two monitoring N and P contents can be different by 10-20 times. For the reasons, besides the differences of the pollutant content in the sediment, the “screen role” to the Sediment of the different dredging operation conditions and the working conditions of the stack fields is also the one of the reasons.

This evaluation conducts the prediction (determine the total nitrogen as per the ammonia nitrogen index) of the normal discharge of the wastewater according to the Grade I emission standard of Integrated Wastewater Discharge Standard (GB8978-1996).During the later period, it may cause the abnormal emissions of the project engineering wastewater because of the short stay time, storm runoff and other factors. In the Dianchi River dredging project, the maximum


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concentration SS of the wastewater discharge is 380mg/L, TN is 38.76mg/L and TP is 4.60mg/L.The prediction of this environmental evaluation under the abnormal emissions takes the reference of the highest emission concentration of the wastewater of the Dianchi River dredging operation for calculation.

Table 111: Prediction emission concentration of project engineering wastewater

Unit: mg/L

Total nitrogen Total phosphorus

Normal emission 15 0.5

Abnormal emission 38.76 4.6

Prediction Result

Through the calculation of the prediction model, the impact results of the wastewater emission to the water quality of the Longzi Lake are shown in Table112.

Table 112: Prediction of the contribution value of the concentration of the wastewater emission to the water quality of the Longzi Lake

Unit: mg/L

Normal

emission

Distance from

the outlet

TP TN

Predicted

concentration

Contributed

concentration

Predicted

concentration

Contributed

concentration

100 0.70 0.45 14.5 13.06

200 0.57 0.32 10.0 8.56

400 0.34 0.09 3.02 1.58

500 0.28 0.03 1.89 0.45

600 0.26 0.01 1.54 0.1

800 0.25 0 1.44 0

Abnormal

emission

100 4.37 4.12 35.1 33.66

200 3.21 2.96 23.5 22.06

400 1.04 0.79 5.53 4.09

500 0.54 0.29 2.60 1.16


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600 0.34 0.09 1.69 0.25

800 0.254 0.04 1.44 0

From the above prediction results, we can come to the following conclusions:

1. Within 400m distance from the outlet of project engineering wastewater, the regional concentration of the pollutants in water is decrease rapidly with the increase of the distance; TN and TP concentrations in the water body are close to the background concentrations at the 600m from the outlet of project engineering wastewater.

2. The impact scope of TP and TN to the water quality of the Longzi Lake is about 600m.

Under the normal wastewater emissions of the stack field, the contribution values of the concentration of TP and TN at the 450m from the outlet of project engineering wastewater are lower than the standard values of Class Ⅲ water quality of Environmental Quality Standard for Surface Water. Under the abnormal emissions, when TN is at about 550m from the outlet of project engineering wastewater and TP is at about 800m from the outlet of project engineering wastewater, the both contribution values of the concentration are lower than the relating provisions of Class Ⅲ water quality standard of Environmental Quality Standard for Surface Water.


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Figure 21: Prediction results of project engineering wastewater discharge on the water

7.3.1.4.3 Longzi Lake water-environmental impact analysis of slurry transportation pipeline accident

As the span between the Longzi desilting spot and stack field is larger, so the slurry transportation pipeline of the project is also longer; Because affected by many factors such as the slurry transportation pipeline enduring the uneven pressure, pipeline quality, existing problems during the pipeline construction, it is possible to happen the pipeline rupture or leaking phenomenon which results in the slurry leakage. Once the pipeline is rupture, the slurry will infuse into the River again, which will have a certain degree of the impact to the water quality of the Longzi Lake. We shall inspect the slurry transportation pipelines regularly during the construction period, in order to avoid the pipeline rupture.

7.3.1.4.4 Secondary pollution analysis of dredging project

Sediment dredging is one of the important measures to manage the internal pollution of the River. However, the sediment dredging is a massive man-made interference, the dredging works will promote the emissions of nutrient salts,


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TN正常排放0

510

1520

(mg/

L)浓度

0 200 400 600 800R(m)径向距离

TN事故排放

010

2030

4050

(mg/

L)浓度

0 200 400 600 800R(m)径向距离

TP事故排放

01

23

45

(mg/

L)浓度

0 200 400 600 800R(m)径向距离

TP正常排放

0.2

0.4

0.6

0.8

(mg/

L)浓度

0 200 400 600 800R(m)径向距离

Radial Distance R（m）




TN Normal emission

TN Accidental discharge

TP normal emission TP Accidental discharge

Conc

entr

atio

n (m

g/L) Co

ncen

trat

ion

(mg/

L)

Conc

entr

atio

n (m

g/L)

Conc

entr

atio

n (m

g/L)

heavy metals and other pollutants, so as to have some negative impacts to the environmental quality of the water body.

According to the comparative study of the water quality before and after the dredging in the Taihu Lake in Water Quality Risk Assessment for Sediment Dredging Operations in the Taihu Lake (compiled by Liu Aiju, Kong Fanxiang, Wang Dong), during the dredging operation period and the short time after the end of dredging, the total suspended solids, toxic metal ions and the contents of nitrogen, phosphorus and other nutrient salts in the water body increase, while the water transparency is lower down. The main reason is the dredging works making the surface sediment to resuspend, thus promoting the release of the nitrogen, phosphorus etc. nutrient salts and the toxic heavy metals in the sediment. Such environmental impact will go on for some time, after 2 months of the end of the dredging project, the contents of the suspended solids, heavy metal pollution levels and the contents of nitrogen, phosphorus etc. nutrient salts begin to decrease, which shows that, after the dredging, the suspended solids and absorbed nutrient salts, heavy metals ions in the water body can happen the quickly sedimentation. But compared with the situation before the dredging, the water-environmental quality of the inner River after nine months of the dredging is lower than the level before the dredging. After one year of the dredging, the water quality is increased and all the indicators are lower than the level before the dredging. This indicates the sediment dredging can improve and upgrade the water quality of the River.

7.3.1.4.5 Analogy analysis of water-environmental improvement after the desilting of the Longzi Lake

The pollution sources for water eutrophication can be divided into the outer sources and the inner sources. The River sediment is an important nutrient reservoir for the River, after the decrease of the influent nutrient salts load or complete interception, the nutrient salts in the sediment will be released gradually and become the dominant factors for the River eutrophication.

At present, the Longzi Lake has completed the closure, Yangtaizi sewage treatment plan is under the construction, which is expected to complete and put into use till the end of 2007.Therefore, the sediment of the Longzi Lake becomes the main factor to impact the water quality of the Longzi Lake. There are more villages around the South River, the living sewage of the villagers has been discharged into the Longzi Lake directly without any treatment, the South River mainly collects the farmland runoff, living sewage of the neighboring residents and the influents from the South mountains, so the eutrophication level of the South River sediment is higher and it is special important to remove the South sediment with eutrophication. The South River’s area accounts for nearly 50% of the total area of the Longzi Lake, the dredging for the polluted sediment of the


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South River is equivalent to remove a huge surface pollution source, furthermore, it can also increase the storage capacity and the self-purification capacity of the River. The following table is the comparison of the water quality before and after the implementation of the Chaohu River dredging project.


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Table 113: Comparison situation of water quality before and after the implementation of the Chaohu River dredging project

Unit: mg/LYear

Project

Water intake of first water treatment plant Inner River district of Xibakou

1998 1999 2000 2000 2001 2002 1998 1999 2000 2000. 2001 2002

TP 0.245 0.263 0.280 0.127 0.103 0.172 0.233 0.280 0.324 0.180 0.139 0.143

TN 4.12 3.72 3.58 2.17 2.21 2.82 4.28 4.65 3.57 2.23 2.14 2.60

Permanganat

e index7.12 6.10 6.80 4.18 3.59 4.21 8.60 8.50 6.32 4.10 4.76 4.93

Chlorophyll a

(mg/m3)/ / 2.25 0.90 0.94 0.57 / / 4.96 0.92 0.95 0.36

Ammonia

nitrogen0.381 0.356 0.294 0.153 0.160 0.287 0.450 0.289 0.305 0.160 0.180 0.197

Nitrate

Nitrogen3.60 3.28 3.26 1.92 2.10 2.28 3.80 4.12 3.26 2.15 1.98 2.15

DO 8.40 8.21 8.90 8.20 8.05 8.51 8.30 8.10 8.66 8.32 8.58 8.80

Transparency

(cm)/ 40 31 52 55 80 / 45 30 65 47 80

Total mercury 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005

Total arsenic 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004

Form the above table, we can see that, after the implementation of the Chaohu River dredging project in 2000, the total phosphorus content decreases by nearly 50%, total nitrogen content decreases by nearly 35~45%, thus, the dredging works can improve the water quality significantly.

After the implementation of the Chaohu River dredging project, it will control the emissions of the living sewage of the surrounding enterprises and the residents, as well as greatly reduce or completely eliminate the emissions of the outer pollutants. Part of the Southern ponds will be transformed into the artificial wetlands, after the transformation of the ponds; it can reduce or eliminate the bait material dosing and reduce the agricultural non-point source pollution. All of these will improve the water quality and release the eutrophication process of this regional water body at a certain extent.

7.3.2 Environmental impact analysis of ecology and landscape

7.3.2.1 Ecological improvement role of Longzi dredging project

The domestic relating research results show that, the light, transparency and the light compensation depth are the limiting factors for the growth of the submerged plants. After the completion of the dredging works, the water transparency will be


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improved markedly, the underwater light intensity will increase, which will be beneficial to the growth of the submerged plants and recover the quantity and the diversity of the submerged plants.

The algae will be changed fastest with the influence of the water quality. Along with the improvement of the water quality, the quantity of the algae will increase and the original dominant species of the microcystin, cryptophyta, anabaena and other tolerance algae will be replaced by the diatoms and the chlorophyceae. This makes the greater changes of the structure and the quantity of the algae.

Affected by the dredging operation, the structure of the benthic animals will be destroyed during the construction period and the species of the benthic animals will reduce, too. With the completion of the project, the water quality will improve and the habitat environment of the benthic animals will be restored gradually. The first present things are chironomid larva, limnodrilus sp. etc., no mollusks in the short term. After the further improvement of the water quality, along with the gradual recover of the large aquatic plants, the quantity of the mollusks will also increase gradually and the yaquatic plants with large, the number of mollusks will also gradually increase and the macrobenthos may be restored then.

Fish is the higher organisms of the nutrient level in the aquatic ecosystem. The restoration and development of the fish are rest with the water quality and the recovery degree of other aquatic biological organisms with the lower nutrient level. The removal of the contaminated sediment expands the effective area and the place for the fish natural spawning ground. Looking at the short term, the dredging project will not have a greater impact on the species and quantity of the fish. From a long-term perspective, the dredging project can remove the heavy metals and toxic substances in the sediment, then to cut off their access to the food chain and the access for migration and enrichment in the food chain, thus to improve the quality of the fish. In addition, along with the gradual recovery of the phytoplankton and zooplankton, the bait will increase continually, which is beneficial to the growth and the reproduction for the eating fish.

7.3.2.2 Environmental impact analysis of the Longzi Lake slope dressing and restoration of riparian vegetation

The impact of the construction of the Longzi Lake slope dressing project to the ecological environment is shown in the generated soil erosion. Slope dressing is bound to break the existing coastal landforms and disturb the formed coastal ecological environment. Local slope will be cut off and create the new exposed soil; Local slope will be filled, the new filling soil will expose out of the slope surface, which is very easy for the soil erosion. As part of the soil erosion is inevitable, so we must control the construction operation area strictly during the


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construction process, as well as strengthen the management to minimize the soil erosion.

After the completion of the slope dressing, it will also have the local soil erosion. The generated strength of the soil erosion is closely related with the type of the slope. The main types of the river bank are natural river bank, hard river bank and the ecological river bank. In the Chapter "alternative proposal" of this report, we conduct the selection of the different types of the river bank from the ecological impact, applicable conditions and other aspects, thus to recommend the suitable type of the river bank for this project.

7.3.2.3 Environmental impact analysis of Caoshan Mount vegetation restoration

Caoshan Mount is brown granite soil and the pH value is 7.In 1962, we conducted the artificial reforestation, in 1969, the forest is basically closed, with the forest area of 2064 acres, the average height of the tree is 4 meters and the wood reserve of 4,500 m2. The specie of the man-made forest is single, the pure forest is more while the mixed forest is less, usually is the mixed by the black pine & masson’s pine with black locust & sawtooth oak, so the biodiversity is quite poor. As the Caoshan Mount is next to the Longzi Lake landscape, which is very suitable for the survival, habitat and reproduction for various species, the project is intended to renovate and restore the vegetation of Caoshan Mount, then select the appropriate tree species to increase the vegetation coverage and the biodiversity. The restoration project of Caoshan Mount vegetation will not have the negative impact on the environment and its environmental impact is mainly reflected in the improvement of ecological environment:

1. Restore and renovate the mountain vegetation of Caoshan Mount, so as to achieve the more biodiversity and form a reasonable biological chain, further to play the regulation function of the biological components to the environmental quality, finally to play an important role to keep the ecological balance.

2. The restoration of the mountain vegetation will also increase the area of vegetation and biological components greatly, provide the adequate oxygen source to the city, purify the environment and regulate the climate.

3. Caoshan Mount is an important component of Longzi scenic, the restoration and renovation of the Caoshan Mount vegetation can attract the organisms for survival, habitat and reproduction here, which will have the greater upgrade role of the Longzi Lake scenic landscape.

However, the choice of the planning tree species is very significant for the entire project. The choice of the tree species shall start from the ecological benefits of the vegetation, mainly focus on the restoration of the local vegetation and


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introduction of the alien suitable species as the supplement. The choice of tree species shall pay attention to the following points :

1. According to the soil conditions and site conditions, select the appropriate vegetation to full play the ecological and landscape functions.

2. The tree species shall choose the appropriate native tree species, because the native trees has interacted with the surrounding environment for many years and has achieved the basic harmony with the environment finally. Meanwhile, please select the tree species with anti-pollution, anti-insect, sterile resistance and high survival rate as far as possible, with the attention to the combination of the broad-leaved tree species and conifer tree species.

3. Caoshan Mount shall set the fire buffer zone, plant the fire-resistant trees, then in the event of the forest fires, they can slow the spread of the fire and mitigate the losses.

7.3.3 Sound environmental impact analysis

7.3.3.1 Tianhe drainage pump station

During the operation of the Tianhe drainage pump station, the noise mainly comes from the running noise of the pump motor and the air compressor system, wherein the noise source intensity of single pump unit is 75-85dB (A) generally; the main device of the air compressing system in the main pump house is the air compressor, whose noise source intensity is 85-95 dB(A), while the indoor reverberation noise is 90-100dB (A).

There are five axial flow pumps in Tianhe drainage pump station, for the single unit, calculate by five pumps at most at the same time and use the sound source superposition formula to calculate the source intensity.

Superposition formula to calculate several sound sources:

Of which: LPtotal——Sound pressure level at one sound receptive point, dB(A);

Lpi——Sound pressure level at i sound source to the sound receptive point, dB(A);

n——Total number of the sound sources.

When five pumps running together, the noise source intensity is 92 dB (A), the noise impact of the pumps and the air compressor running will use the point source attenuation formula to predict.


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LA(r)= LA(ro)-20lg(r/ro)

Of which: LA(r)——A sound pressure at r point from the sound source, dB(A);

LA(ro)——A sound pressure at ro point from the sound source, dB(A);

r, ro——Distance, m.

Wherein the noise of the main pump house use the noise prediction model: LP = LA－20lgR－△L,Of which: LP —Generated sound pressure level of the point sound source at the prediction point;

LA —Sound pressure level at the reference location R;

△L—The caused attenuation by various factors, at the semi-free space of the sound source, △L is 8;

Usually, the sound isolation of the equipment station is 15 ～ 25 dB(A), this environmental evaluation predict the attenuation is 20 dB (A).

The prediction results of the pump running noise impact are shown in Table 114.

Table 114: Prediction results of Tianhe drainage pump station’s noise

Noise

sourc

e

Source

intensity

dB(A)

Influential

distance(m)

Influentia

l value at

80m

from the

pump

station

Background value

dB(A)

Superposition value

dB(A)

Daytim

e

Nighttim

e

Daytim

e

Nighttim

e

Daytim

e

Nighttim

e

Water

pump

unit

92 71 224 53.9

38.4 36.6

54.0 54.0

Main

pump

house

80 18 56 41.9 43.5 43.0

Class I of Standard of Environmental Noise of Urban Area: Daytime 55dB(A), Nighttime 45dB(A)

From the prediction results in the table, we can see that: The influential distance of the Tianhe drainage pump station running noise is 224m at nighttime and 71m at daytime; the influential value at 80m from the pump station is 54 dB (A), which meets the daytime sound environmental standard, but exceeding the standard at nighttime.


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The main sensitive points of the surrounding environment during the operation of the Tianhe drainage pump station are the Xuying Country at 500m southeast and the Production & living Management Area of Tianhe drainage pump station (located at nearly 80m northeast of the main pump house), which indicates the operation of the Tianhe drainage pump station will not cause the noise impact to the Xuying Country’s environment, but will make some noises to the workers of the living management area during the nighttime. But Tianhe drainage pump station will only be used during the flood season, the noise pollution is a short-term, temporary influence, with the little impact to the employees of the Drainage Pump Station.

7.3.3.2 Longzi Lake drainage pump station

After the completion of the Longzi Lake drainage pump station, the noise mainly comes from the running noise of the pump motor and the air compressor system, wherein the noise source intensity of single pump unit is 75-85dB (A) generally; the main device of the air compressing system in the main pump house is the air compressor, whose noise source intensity is 85-95 dB(A), while the indoor reverberation noise is 90-100dB (A).

There are five water pump units in the Longzi Lake drainage pump station, calculate by five pumps at most at the same time and use the sound source superposition formula to calculate the source intensity.

Of which: LPtotal——Sound pressure level at one sound receptive point, dB(A);

Lpi——Sound pressure level at i sound source to the sound receptive point, dB(A);

n——Total number of the sound sources.

When five pumps running together, the noise source intensity is 92 dB (A), the noise impact of the pumps and the air compressor running will use the point source attenuation formula to predict:

Of which: LA(r)——A sound pressure at r point from the sound source, dB(A);

LA(ro)——A sound pressure at ro point from the sound source, dB(A);

r, ro——Distance, m.

Wherein the noise of the main pump house use the noise prediction model:RIg00002 A17978/CIGZ070287

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Of which: LP —Generated sound pressure level of the point sound source at the prediction point;

LA —Sound pressure level at the reference location R;

△L—The caused attenuation by various factors, at the semi-free space of the sound source, △L is 8;

Usually, the sound isolation of the equipment station is 15 ～ 25 dB(A), this environmental evaluation predict the attenuation is 20 dB (A). The prediction results of the pump station running noise impact are shown in the following Table115:

Table 115: Prediction results of the Longzi Lake drainage pump station’s noise

Noise source

Source

intensity

dB(A)

Influential

distance(m)

Influential

value at

70m from

the pump

station

Background value

dB(A)

Superposition value

dB(A)

Daytime Nighttime Daytime Nighttime Daytime Nighttime

Water pump

unit92 71 224 55.1

59.4 44.4

60.8 55.5

Main pump

house80 18 56 43.1 59.5 48.0

Class I of Standard of Environmental Noise of Urban Area: Daytime 55dB(A), Nighttime 45dB(A)

From the prediction results in the table, we can see that: If not consider the environmental background noise, the influential distance of the Longzi Lake drainage pump station running noise is 71m at daytime and 224m at nighttime. The influential value of the water pump units to the Xingfu Country is 55.1 dB(A) and the influential value of the main pump house is 43.1 dB (A).Because the background noise of Xingfu Country is higher, so the noise after the superposition of the running noise of the Longzi Lake drainage pump station and its background noise is over the standard.

From the above results, the operation of the pump station will cause the adverse impact to the sound environment of Xingfu Country. However, the pump station will only be used during the flood drainage, so its impact to the surrounding sound environment is short-term. In addition, this project is under the most adverse circumstance of five pumps running at the same time, therefore, in the actual


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operating circumstances, the influence extent and scope will be less than the prediction results of this report.

7.3.3.3 Noise prediction of Huaishang Binhe Ave.

7.3.3.3.1 Prediction parameters

The proportional allocation of the road large, medium and small vehicles is 8%, 30% and 62% respectively, while the traffic volume ratio of the daytime to the nighttime is 0.75: 0.25.The road prediction parameters are shown in Table 116.

7.3.3.3.2 Prediction model

Use the road noise prediction model of Federal Highway Administration (FHWA) to predict the road traffic noise.

Divide the road vehicles as the vehicle classification (such as, large, medium and small cars), then calculate the hour equivalent sound pressure of a certain type of vehicle.

Of which:

Leq(h)i--Hour equivalent sound pressure of the i vehicle, dB(A);

--The average radiation sound pressure of the reference energy of the i vehicle, dB(A);

Ni—The traffic flow passing a certain prediction point of the i vehicle within the designated time T (1h);

D0—The distance to the reference position of measuring the radiation sound pressure of the vehicle, D0=15m;

D—The vertical distance from the center lane to the prediction point, m;

Si—Average speed of the i vehicle, km/h;

T—Time for calculation the equivalent sound pressure, 1h;

a--Ground cover coefficient, which depends on the ground conditions at the site, a=0 or a=0.5;

Φa--Correction function on behalf of the section of the road with the limited length, wherein theΨ1, Ψ2 are the opening angles (rad) at the both ends of the section of the road with the limited length, see attachment B1;

ΔS—Attenuation value which caused by the shelters, dB(A);


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Of which:

The equivalent sound pressure of the mixed traffic flow pattern is obtained by the superposition of the equivalent sound pressures of the various traffic. If divide the traffic flow into the large, medium and small cars, then the equivalent sound pressure of the total traffic flow is:

7.3.3.3.3 Prediction Results

Prediction results are shown in Table 116.

Within 50m area on both sides of the road, implement Class IV standard of “Standard of environmental noise of urban area” (Daytime 70dB(A)and nighttime 55 dB(A)), from the prediction results, we can see that:

Table 116: Prediction parameters table of typical sections’ noise

Section

Road

parameter

Distance to

prediction position

(from the center lane)

Traffic flow (vehicle/day)

Prediction period

Daytime

total amount

Large car

Medium car

Small car

Nighttime

total amount

Large car

Medium car

Small car

Binhe Ave.

Length:11.909m, Width:20~30m, speed: 40km/h, sloping: 1.5%

20m, 30m, 40m, 50m, 60m, 70m, 80m

2010

Table 117: Noise prediction table of typical sections with different distances Unit：dB(A)

Section Prediction periodPrediction distance (from the center lane)

20m 30m 40m 50m 60m 70m 80m

Binhe Ave. 2010 Daytime / 57.7 53 50.9 49.5 48.4 47.6


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Nighttime / 52.9 48.2 46.1 44.7 43.6 42.8

2010Daytime 56 50.6 48.2 46.7 45.6 44.6 43.9

Nighttime 51.4 46 43.6 42.1 41 40 39.3

7.3.4 Environmental impact analysis of solid wastes

7.3.4.1 Analysis of disposal way of the Longzi Lake dredging sludge

The project volume of the Longzi Lake dredging is 1.15 million m3, estimate by the loose coefficient of 1.15, there shall be 1.32 million m3 dredging sludge in total. Dredging sludge will be placed at three stack fields on the south shore of the Longzi Lake, after the sludge dry, it will be used for the construction of the coastal vegetation.

Table Table 118 shows the comparison results of the Longzi Lake dredging sludge composition with the Soil Environmental Quality and Control Standards for Pollutants in Sludges from Agricultural Use. From the table, we can see that, the dredging sludge of the South River can meet the Grade III standard of the soil and the quality of soil will not harm or pollute the plants and the environment. The sediment can also meet the requirements of Control Standards for Pollutants in Sludges from Agricultural Use, thus can be used as the farm soil. So after the sludge dry, it can be used for the ecological landscape construction and will not adversely affect the vegetation.

Table 118: Comparison of the Longzi Lake dredging sludge

Unit: mg/kg

Inde

x

South of the

Longzi Lake

North of the

Longzi Lake

Grade III of Soil

Environmental Quality

Control Standards for

Pollutants in Sludges

from Agricultural Use

Cu 19.02 40.13 400 500

Pb 119.80 104.60 500 1000

Zn 65.58 178.67 500 1000

Cr 186.80 350.33300 (Dry land)

400 (Paddy field)

1000

As 16.40 15.9140 (Dry land)

30 (Paddy field)

75


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Cd 0.35 0.45 1.0 20

THg 0.04 0.01 1.5 15

As the soil of the stack field will be covered by the dredging sediment, the use patter of the soil will be changed completely. The bottom of the stack field is the clay layer with the poor penetration, the enclosure soil will carry out the anti-seepage treatment by the geomembrane, and therefore the original soil will not be affected. After the completion of the stack field transportation and spread, we will plant trees or create the landscapes according to the actual situation; the surface soil is the dredging sediment, whose soil feature value will be decided by the sediment.

Because the land use pattern has been changed, the original farm or fish ponds will be transformed into the landscape green spaces, not as the agricultural productive land, so it will not cause the harm to the human health.

7.3.4.2 Analysis of disposal way of Xijiagou dredging sludge

Xijiagou dredging project has Baligou and Xijiagou such two dredging rivers, with a total length of 11km. Wherein, upstream river at the south of Yanshan Road, Xijiagou is 6.2km, while the river at the south of Tushan road, Baligou is 4.8km.The excavation along the project is 437,600 m2 in total and the fill is 170,000 m2. Of which, the excavation of Xijiagou project is 375,100 m2 and the excavation of Baligou project is 52,500 m2. Baligou project includes the flood control construction, it shall fill up the beach land to 23.5m of the designed height, thus the fill is about 170,000 m2.

The generated sludge of Xijiagou dredging river will be placed nearby. Wherein, the sludge since Yanshan Road to the Southern wall of Naval Academy will be abandoned at the eastern coast and the rest will be placed on both sides of the ditch. The designed height of the mounded soil is 2.0m, the slope is 1:3, the width of the mounded soil will depend on the soil amount of the section, leave the beach land with 10m width between the mounded soil and the mouth of the ditch. The sludge of Baligou project will be placed nearby and used as the fill for flood control project.

7.3.4.2.1 Environmental impact analysis of sludge disposal

Some houses of the surrounding residents are close to the river at the Yinhe Bridge, Yanshan Road, Xijiagou, therefore the dredging project will have some impact on the residents living nearby. The water content of the dredging sludge is high, if placed at the shore, it will have the leachate, especially on the rainy days, the leachate may be washed into the river, thus affect the water quality of the water body. If the muddy water is washed into the urban roads, it will also affect


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the sanitation of the surrounding roads. The placed sludge at the shore, after the dry, the sludge is apt to generate the dusts through the vehicles driving. Because of the numerous emissions of the living sewage and industrial wastewater in the river, as well as the piled living garbage, the stack field for dredging sludge will have the foul smell, especially in the summer, which mainly dues to the rot of the living garbage.

7.3.4.2.2 The reasonable analysis of the sludge disposal method

The dredging sludge shall be internal used of this project, to keep the earthwork balance, so as to reduce the volume of sludge dump and outer transportation, further to mitigate the adverse environmental impact of the dredging sludge.

The residents and the enterprises at the both shores of Xijiagou set the pollution discharge outlet privately, the living sewage was discharged into the river without any treatment, as well as the piled garbage along the both shores, which seriously affect the surrounding environment of Xijiagou. At present, there is serious sediment in the river, the surface sludge has the higher nutrient content which affected by the discharge of the surrounding production wastewater, living sewage and the dump of the living garbage. Compared with the background values of Anhui Province, the mercury content in the sediment of Xijiagou and Baligou is 2.2~2.9 times of the soil background value of Anhui Province, which mainly because of the discharge of the production wastewater, if the disposal is not proper, then it may cause the ecological harm to the local aquatic ecosystem.

7.3.4.2.3 Sludge heap

According to the monitoring results of Baligou and Xijiagou sediment, the monitoring sediment meets the requirements of Grade III of Soil Environmental Quality (GB15618-1995), which can be heaped up nearby, after the drying, we can plant trees above them. However, in order to avoid the heavy metal materials affecting local groundwater environment during the place of the sediments, we shall place the anti-seepage membrane below the stack field before the place of the sludge. As the surface sediment contains higher organic matters, the foul smell impact is more obvious. If want to heap up the sludge along the shore, we shall take effective measures to control foul smell pollution.

Used as farmland and forest land

Table 118 compares the monitoring sediment of Baligou and Xijiagou with the Grade III standard of Soil Environmental Quality (GB15618-1995) and Control Standards for Pollutants in Sludges from Agricultural Use (GB4284-84).From the table, we can see that, the monitoring sediment of Baligou and Xijiagou both meet the requirements of Grade III standard of "Soil Environmental Quality" (GB15618-1995) and Control Standards for Pollutants in Sludges from Agricultural Use (GB4284-84), which shows that the dredging sludge is up to the requirement


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of protecting the production of farming & forestry and the normal growth of plants, as well as no harm or pollution to the plants and the environment basically. From the monitoring results of Baligou and Xijiagou sediment, we found that the organic matter content of the two rivers is relatively high, with the soil fertility is better. Therefore, the project may consider placing the dredging sludge along the spot and using the sludge as the farmland, forest land and fill. The environmental evaluation suggests using the generated sludge of Baligou dredging as the soil for green belt along Baligou.

Table 119: Comparison of Baligou, Xijiagou sediment with the standard

Unit: mg/kg

Monitoring pointOrganic

matter (%)Arsenic

Lea

d

Mercur

yChromium

Total

phosphorus

Total

nitrogen

1# (Baligou) 2.04 10.36 35.5 0.064 34.6 1.88 75.111

2# (Xijiagou) 7.01 13.06 42.5 0.085 60.4 3.22 59.796

(GB15618-

1995)

Grade III

standard

—

30

(Paddy

field)

40 (Dry

land )

500 1.5

400 (Paddy

field)

300 (Dry

land )

— —

GB4284-84 — 75100

015 1000 — —

Used as fill

The flood control project of Baligou needs the fill for about 170,000 m2. Xijiagou dredging will generate the excavation of nearly 375,000 m2, we can consider using the better sludge at the lower as the fill for flood control project of Baligou. But before using the Xijiagou dredging sludge as the fill for flood control project of Baligou, we shall inspect the soil quality, to ensure the soil quality meet the requirement of the project.

Transport to refuse landfill

As some districts of Xijiagou, the surface has the mixture of the living garbage and construction wastes, so it can not be used as the fill or agricultural soil. Moreover, the surface sediment has higher organic matter content, which will have a more obvious foul smell, therefore it is unsuitable to place along the shore and need to transport to the refuse landfill for sanitary landfill.


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The Sanitary Landfill of Bengbu City located in the southern slope of Laoshaoxi, that is 1.5km northeast of the east of Lilou country, with a distance of 13km from the City’s center. Its engineering design scale is 800t / d, with the total capacity of 4 million m3. The Sanitary Landfill uses the new technology of "quasi-aerobic landfill", that is after the transportation of the garbage, it will conduct the earth covering and rolling. Till the landfill to the designed height, it will conduct the medium-term covering and closure. We shall plant the grass or shallow-rooted plants on the final coverage soil. The garbage leachate uses the anaerobic lagoon treatment process. After the anaerobic lagoon treatment and the leachate achieved the Grade III standard of Standard for Pollution Control on the Landfill Site for Domestic Waste (GB16889-1997), transport it to the First Sewage treatment plant of Bengbu City for centralized treatment.

The Sanitary Landfill of Bengbu City was completed at the end of September, 2004, with the service life of 16 years. According to the disposal scale of the refuse landfill, it can receive part of the generated dredging sludge which contains the living garbage and the construction wastes.

To avoid generate the leachate during the transportation of the dredging sludge to sanitary landfill, and have the adverse environmental impact along the way, the dredging sludge shall be natural dried before the transportation to the landfill.

7.3.4.2.4 Conclusion

Summarizing the above analysis, as the surface sludge of Xijiagou is affected greatly by the discharge of the living garbage, construction wastes and living sewage, this report recommend that, the surface sludge of Xijiagou which doped with the living garbage and construction wastes is not suitable for place on spot or reuse, which shall be sent to the Sanitary landfill for sanitary landfill. Lower soil is better, the dredging soil which meets the requirements of the fill can be used as the fill for flood control project of Baligou. The remaining part can be placed at both sides of the ditch, we shall place the anti-seepage membrane below the stack field before the place of the sludge, after the completion of the deposition, plant the vegetation to reduce soil erosion on the above of the dredging yard.

7.3.4.3 Analysis of sludge disposal of Mohekou sewage treatment plant

The main solid wastes of sewage treatment plant are composed of grille residual, grit chamber sediment, dewatering sludge and the living garbage of the workers, under certain temperature and humidity, especially in the hot weather, these substances are apt to decay and stink by the microbial function, wherein the dewatering sludge has the largest impact on the surrounding environment, whose main characteristics are:

① High water content (≤80％),easy to lose;RIg00002 A17978/CIGZ070287

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② Fine particles and poor water permeability;

③ Easy to become a breeding ground for mosquitoes and thus become the spread source of the diseases;

④ Easy to generate the leachate, once the water pollutants enter into the water body, they will pollute the surface water and groundwater.

The generated volume of the solid wastes of the proposed project during the operation period is shown in Table 120.

Table 120: Emissions of main solid wastes of sewage treatment plant

Name of project Type of solid waste Discharge amount Water content

Sewage treatment plant

Grille residual 1.8m3/d 85～90％Grit chamber sediment 0.9m3/d 60％

Residual sludge 14.3m3/d 75％Living garbage 30kg/d —

1. Environmental impact of the sludge dewatering

Generally, it need to concentrate before the sludge dewatering, the concentrated tank often emit the foul smell, especially in the hot summer, there is often floating sludge on the pool surface, which is very easy to breed the mosquitoes.

After the concentration, during the sludge dewatering, the dewatering room will emit the foul smell; if there is any leakage during the operation of the sludge dewatering, it will cause the environmental pollution.

2. Environmental impact of the sludge dump process

The dewatering sludge shall be clean and transported in time, for the sludge which can not be timely removal, it shall have the temporary storage place. The dewatering sludge will form the muddy when meet with the water, with the good mobility and easy to lose; by the rainwater washing, the leachate will contain lots of pollutants to pollute the ground surface and groundwater bodies. Therefore, the dewatering sludge can not be placed at ease, we shall set up the temporary stack field after the special treatment and have the anti-seepage layer, as well as adding the awning; In addition, the dewatering sludge is not completely stable, so the long-term storage of the sludge will have the anaerobic digestion. The generated stench of H2S and other materials will affect the air quality; the dump place of dewatering sludge is a also a breeding ground for mosquitoes, which have the adverse impact to the sanitation. Given the above reasons, the dewatering sludge shall be timely removed, avoid piling up in the factory.


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3. Environmental impact of the sludge transportation

Despite the sludge has been treated within the factory at varying degree, but the sludge still have some harmful pollutants. The sludge of the sewage treatment plants of this project just through the concentration and dewatering treatments, which can not achieve the requirements of stable and harmless, the sludge contains large amounts of the corruptive organic matters and other pathogenic microbes, such as Escherichia coli, eggs of ascarid. Therefore, the environmental problems during the transportation of sludge are very important.

Currently, the main transportation of sludge is the vehicle-transporting. If the vehicle body and the wheels contaminated by the sludge during the loading and unloading process, or the closeness function of the vehicle is not good, then the vehicle will leak the sludge around the sewage treatment plant or along the road, which will create the pollution to the road. The transport mode of the sludge shall stop the phenomenon of cross-flow of muddy water and the foul smell. Sewage treatment plant shall use the closed special vehicles, which can prevent the leakage of water, the leakage of soil and its disturbance. Meanwhile, the sludge transportation time shall be strictly controlled, avoid the peak traffic times as far as possible. In short, the transportation of sludge is a problem that can not be ignored, it must be taken seriously.

4. Disposal method of the sewage treatment plant’s sludge

The sludge is a product during the sewage treatment process, it is an important component of the sewage treatment, the aim of the sludge treatment it to reduce the water content of the sludge and sludge volume, so as to achieve a stable state, and create the conditions for further disposal and comprehensive utilization, the general process is "concentration- dewatering -disposal" or "concentration –digestion –dewatering -disposal."

According to the feasibility study of the project, due to the sewage treatment process of this project uses the biological nitrogen and phosphorus removal process, the sludge age is longer, the sludge state is more stable, can not carry out the nitrification treatment, but if use the nitrification treatment, we shall increase a series of structures and equipments of the digestion pool, heating, mixing and marsh gas handling etc., at the same time, it need to increase the investment, for the land area of the sewage treatment plant in the park is limited, so it can not construct the nitrification treatment system for the sludge.

According to the analogy information, the sludge component of the sewage treatment plant has some relationship with the water quality of the treated sewage. For the sewage treatment plant which mainly treats the industrial wastewaters, the components of its residual sludge will have higher content of the heavy metals, which is far beyond the standard of agricultural sludge; therefore,


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this environmental evaluation recommends not to use the sludge as the farmland fertilizer, but to conduct the safe landfill disposal.

5. Disposal of the grille residual and sediment

The grille residual and grit chamber sediment are both the garbage of the sewage treatment plant, must be collected, stored and transported properly. Recommend to be transported to the refuse landfill together with the living garbage. The specific storage, packaging and transportation etc. must be in accordance with the relating provisions strictly. Although its generated volume is not big, but if ignore it, it will cause harm to the environment. The light waste plastic bags and other packaging will wind waft around the sewage treatment plant; the sediment or the floating sediment must be removed timely, otherwise they will stink, decay and breed the mosquitoes.

6. Environmental impact of disposal of living garbage

The proposed sewage treatment plant will generate less living garbage, it can be cleaned and transported along with the grille residual and grit chamber sediment, no need to treat alone. But the clean and transport must be timely, otherwise, the long-term storage will make the garbage dump become the breeding grounds for mosquitoes, which also have the adverse impact to the plant sanitation. The clean and transport process shall also be in line with the health and safety procedures strictly, avoid spill and disturbance along the road, thus cause the pollution on the environment.

7. Summary of refuse landfill

The Sanitary Landfill of Bengbu City located in the southern slope of Laoshaoxi, that is 1.5km northeast of the east of Lilou country, with a distance of 13km from the City’s center. Its engineering design scale is 800t / d, with the total capacity of 4 million m3. The Sanitary Landfill uses the new technology of "quasi-aerobic landfill", that is after the transportation of the garbage, it will conduct the earth covering and rolling. Till the landfill to the designed height, it will conduct the medium-term covering and closure. We shall plant the grass or shallow-rooted plants on the final coverage soil. The garbage leachate uses the anaerobic lagoon treatment process. After the anaerobic lagoon treatment and the leachate achieved the Grade standard of “Standard for Pollution Control on the Landfill Site for Domestic Waste” (GB16889-1997), transport it to the First Sewage treatment plant of Bengbu City for centralized treatment.

The Sanitary Landfill of Bengbu City was completed at the end of September, 2004, with the service life of 16 years. According to the disposal scale of the refuse landfill, it can receive the generated dredging sludge of this project.

7.3.5 Atmospheric Environmental Impact AnalysisRIg00002 A17978/CIGZ070287

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7.3.5.1 Project of sewage treatment plant

7.3.5.1.1 Meteorological characteristics of pollution

(1) Temperature, wind direction and wind speed

The evaluated district locates in the transition zone of the subtropical zone and warm temperate zone, with the four distinct seasons and a mild climate, the average annual temperature is 15.6℃; The statistical results of the meteorological information in the recent five years show that, the yearly dominant wind direction of Bengbu City is east-northeast (ENE), with the frequency of 11%, the secondly dominant wind direction is northeast (NE) and east (E), with the frequency of 8%.Due to the impact of the seasonal weather, the wind direction and frequency present the different characteristics during the different season; the average annual wind speed is 2.73m/s, for the average wind speed in each season, the wind speed in Spring is the maximum, while in Autumn is the minimum. The yearly and seasonal average temperature and wind speed are shown in Table 121, the statistical results of annual wind direction are shown in Table 121, the annual wind direction rose diagram is shown in Figure 22.

Table 121: Statistical table of seasonal and yearly average temperature and wind speed of Bengbu City

Season Winter Spring Summer Autumn Whole year

Average temperature

(℃)1.31 15.6 28.2 16.7 15.6

Average wind speed

(m/s)2.76 2.61 2.57 2.69 2.73

Table 122: Statistical results of wind direction and frequency in each month of the year

Month

Wind

direction

1 2 3 4 5 6 7 8 9 10 11 12

Whol

e

year

N 3 4 3 3 3 1 2 3 3 3 4 3 3

NNE 5 7 7 5 4 4 4 9 7 5 7 6 5

NE 7 10 10 7 7 4 6 8 10 9 6 8 8

ENE 10 11 15 14 13 9 10 17 12 13 10 8 11

E 6 8 7 5 5 6 5 6 6 6 5 4 8


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ESE 5 6 6 7 8 9 7 6 6 6 3 2 7

SE 3 5 4 4 7 6 5 3 4 4 2 2 5

SSE 3 5 6 9 7 13 9 4 5 5 4 5 6

S 3 4 3 7 3 5 8 3 4 4 3 4 4

SSW 6 6 5 9 5 8 8 3 3 3 6 5 6

SW 6 4 3 5 3 4 3 2 2 2 4 2 5

WSW 5 3 2 3 3 3 3 1 3 3 3 3 3

W 5 3 2 2 2 1 1 2 2 2 2 4 3

WNW 6 4 3 4 2 2 2 3 3 3 4 7 4

NW 4 3 3 3 2 2 2 2 4 4 4 4 3

NNW 4 3 4 2 2 2 1 3 2 2 5 4 3

C 18 15 18 15 25 24 25 26 30 30 32 29 18

Figure 22: Annual wind direction rose diagram of Bengbu City

(2) Atmospheric stabilityUsing the classification of the Pasquill stability speculated in the Appendix D of GB/T13201-91 to classify the atmospheric stability of Bengbu City, it can divided into A, B, C, D, E, F six grades since the strong instability to stability.Statistics results show that, the frequency of the neutral stable Class D is the highest; accounting for 54.0%, which followed by a more stable Class E,


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accounting for 16.6%, the stable Class F accounts for 16.1%, the distribution frequency of each stability is shown in Table 123.

Table 123: Statistical table of distribution frequency of Atmospheric stability

Stability

Frequency %

Time

A B C D E F

Spring 0.2 3.2 6.9 48.4 19.1 22.2

Summer 0.3 2.8 8.5 58.3 14.4 15.7

Autumn 0.5 3.0 8.2 58.7 17.3 12.3

Winter 2.6 9.2 8.2 50.5 15.5 14.2

Whole year 0.9 4.6 7.9 54.0 16.1 16.1

(3)Rainfall

The regional average rainfall information of many years is shown in Table 124.

Table 124: Rainfall Characteristics Table

Month 1 2 3 4 5 6 7 8 9 10 11 12Whole

year

Averag

e

rainfall

of many

years

(mm)

26.

532.5

60.

7

62.

7

74.

8106.4 206.3 154.3

86.

9

37.

9

40.

4

22.

0911.4

7.3.5.1.2 Environmental impact assessment of odor pollutants

(1)Prediction of factory boundary concentration

Prediction Model

The exhaust pollution of this project is mainly the unorganized emission of the odor pollutants such as H2S and NH3, the area of the emission source is less than 1km2.According to the Technical Guidelines for Environmental Impact Assessment - Atmospheric Environment (HJ/T2.293),the diffusion model of the downwind surface pollutants adopts the area source diffusion model, that is taking the emissions of the area source as the point source which located its geometric center, after the appropriate amendments of the diffusion parameters, then uses


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the point source model to calculate directly, thus to present the emissions of the area source approximately.

The diffusion formula of the point source module is as follows:

Fy

uQyxc

yzy

2

2

2exp

2),(

k

kn z

e

z

e zHnhzHnhF 2

2

2

2

22

exp2

2exp

Of which: C(x,y)－Ground concentration of pollutants, mg/Nm3;

　　Q－Emissions at unit time, mg/s;

　　X－Downwind horizontal distance from the exhaust chimney, m;

　　 Y － Vertical distance from this point to the horizontal surface of the average wind direction through this source point, m;

　　U－Average wind speed of source height, m/s;

　　He－Effective source height, m;

　　h－Height of the mixed layer;

　　n－Reflection times (Generally n=4); 　 σy—Horizontal diffusion parameter, m;

　　σy—Vertical diffusion parameter, m;

Amend the σy and σz respectively by the area source model:

15.2

3.42

2

11

HX

aX

az

yay

Of which: X――The distance since the receiving point to the center of the area source;

――The length of the area source at y direction;

――Average emission height of the area source.

Model parameters selection

The diffusion parameters, height of the mixed layer adopts the recommended values of “Technical Guidelines for Environmental Impact Assessment - Atmospheric Environment” (HJ/T2.2-93).


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Prediction contents

Average wind speed, hour concentration values of the downwind pollutants with the different stabilities.

Prediction results and impact assessment

Average wind speed, hour concentration prediction results of the downwind H2S and NH3 with the different stabilities are shown in Table 125 and Table 126.

Table 125: Average wind speed, hour concentration prediction results of the downwind H2S with the different stabilities

(mg/Nm3)

Name of pollution source Distance (m) A B C D E F


0 0.0020 0.0021 0.0018 0.0018 0.0015 0.0018

20 0.0041 0.0044 0.0041 0.0038 0.0034 0.0039

40 0.0055 0.0058 0.0085 0.0114 0.0124 0.0041

60 0.0036 0.0038 0.0062 0.0094 0.0110 0.0024

80 0.0025 0.0027 0.0047 0.0077 0.0096 0.0016

100 0.0019 0.0020 0.0037 0.0065 0.0084 0.0011

120 0.0015 0.0015 0.0030 0.0055 0.0073 0.0008

140 0.0011 0.0012 0.0024 0.0047 0.0065 0.0006

160 0.0009 0.0010 0.0020 0.0041 0.0058 0.0005

180 0.0008 0.0008 0.0017 0.0036 0.0052 0.0004

200 0.0007 0.0007 0.0015 0.0032 0.0046 0.0004

220 0.0006 0.0006 0.0013 0.0028 0.0042 0.0003

240 0.0005 0.0006 0.0011 0.0025 0.0039 0.0002

260 0.0004 0.0005 0.0010 0.0023 0.0035 0.0002

280 0.0004 0.0004 0.0009 0.0021 0.0032 0.0002

300 0.0004 0.0004 0.0008 0.0019 0.0030 0.0001

Table 126: Average wind speed, hour concentration prediction results of the downwind NH3 with the different stabilities


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Name of pollution source Distance (m) A B C D E F


0 0.0096 0.0105 0.0111 0.0098 0.0091 0.0083

20 0.0209 0.0218 0.0231 0.0217 0.0200 0.0179

40 0.0215 0.0290 0.0307 0.0452 0.0603 0.0658

60 0.0128 0.0190 0.0201 0.0329 0.0496 0.0582

80 0.0084 0.0134 0.0142 0.0248 0.0408 0.0507

100 0.0059 0.0099 0.0105 0.0194 0.0340 0.0442

120 0.0044 0.0077 0.0082 0.0155 0.0288 0.0388

140 0.0034 0.0061 0.0065 0.0128 0.0248 0.0343

160 0.0027 0.0050 0.0053 0.0107 0.0215 0.0306

180 0.0022 0.0041 0.0044 0.0091 0.0188 0.0274

200 0.0018 0.0035 0.0037 0.0079 0.0167 0.0248

220 0.0015 0.0030 0.0032 0.0068 0.0149 0.0224

240 0.0013 0.0027 0.0028 0.0060 0.0134 0.0205

260 0.0011 0.0023 0.0025 0.0053 0.0121 0.0188

280 0.0010 0.0020 0.0022 0.0048 0.0110 0.0173

300 0.0008 0.0018 0.0020 0.0043 0.0101 0.0160

From the above tables, we can see that: the maximum value of H2S of sewage treatment plant is 0.0041mg/Nm3, the maximum value of NH3 of sewage treatment plant is 0.0658mg/Nm3, which appear at the edge of the processing modules of the sewage treatment plant (40m, area source takes 60×60m2); the hour concentration of H2S and NH3 at factory boundary are both in line with the threshold requirements of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002)(The concentration of H2S<0.06mg/Nm3, the concentration of NH3<0.06mg/Nm3).

7.3.5.1.3 Calculation of sanitation protection distance

① Prediction model of sanitation protection distance


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According to the speculated control method of sanitation protection distance of Technical Methods for Making Local Emission Standards of Air Pollutants (GB/T13201-91), calculate the sanitation protection distance of odors of sewage treatment plant.

The sanitation protection distance of all industries and enterprises shall be calculated by the following formula:

Of which: QC－Control level of unorganized harmful gas emissions of the industrial enterprises, kg/h;

　　Cm－Standard concentration limits, mg/Nm3;

　　L－Then needed sanitation protection distance of industrial enterprises, m;

　　γ－Equivalent radius of emission source at the production unit, calculate it based on the covering area of the production unit S(m2), γ=(S/π)0.5;

　　A, B, C, D－Calculating parameters of sanitation protection distance② Parameters selection and calculating results

Determination of unorganized emission source intensity: unorganized emission source intensity of sewage treatment plant, H2S:0.0227kg/h, NH3:0.12kg / h.

Standard concentration limits: Hygienic standards for the Design of Industrial Enterprises (TJ36-79)stipulates the one time maximum allowable concentration limits of the residential area: the one time maximum allowable concentration limit of NH3 is 0.20mg/Nm3, while the one time maximum allowable concentration limit of H2S is 0.01mg/Nm3.

Area of unorganized emission source: 3600 m2.

Calculate the parameters of A, B, C, D: According to GB/T13201-91, select A as 400, B as 0.01, C as 1.85 and D as 0.78.

Based on the calculation, the sanitation protection distance of sewage treatment plant is shown in Table 127.

Table 127: Calculating results of sanitation protection distance of sewage treatment plant

Impact factor Sanitation protection distance (m)

H2S 155

NH3 44


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Around the sewage treatment plant is the open space, within the distance of 200m, there is no environmental protection target. But at the south of sewage treatment plant is the Bang-Ning highway, although the distance between the sewage treatment plant and the buildings emitting the orders meet the requirements of ”Quality Standard for Construction of Municipal Wastewater Treatment Plant Engineering”, but in order to reduce the impact, we shall construct the green protective buffer belt around the plant (the width is better to be10m, for the green protective buffer belt at the south of the factory boundary shall be appropriately widened and densified), and we shall plant the flowers and trees within the factory to block the diffusion passes of odor pollutants. In addition, the sewage treatment plant should adjust the layout of the factory appropriately, place the buildings which emitting the odors at one side far from the road and arrange the office within the sewage treatment plant at the upwind.


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8 Mitigation Measures

8.1 Prevention & control measures for pollution under construction period

8.1.1 Prevention & control measures for ambient air pollution

The main pollutants of this project produced under construction period are dust, odor and motor vehicle emissions.

（1）Prevention & Control Measures for Odor Pollution①After the completion of pollution interception project on two banks, river training works are operated in sections in the period of low flow, the cleanout garbage are immediately sent to the designated place for decontaminated treatment;

②The sludge, which is dug out in river training works, should be transported outside immediately, and it is not allowed to pile up the sludge along the project line within the scope of 30 cm, where has environmental sensitive point. hermetically sealed tank car is adopted in the process of transportation in order to avoid spattering on the way and prevent the production of odor pollution, for fear it influences the residents near by. If that sludge can not be temporarily transported outside, the bottom mud should be put into straw bag for storage in order to reduce the dust and odor emission;

③If the sludge can not be immediately cleaned and transported, the bottom mud should be put into straw bag for storage in order to reduce the dust and odor emission and avoid the impact on quality life of the residents near by;

④More attention should be given to personal protection of building team, inspection and rescue.

⑤River dredging should be avoided to be done in summer.

（2）Prevention & Control Measures for Dusty Pollution ① Shall strengthen the management, construct civilizedly and load & unload building materials; wheel washing installation should be set on the exit of construction site in order to clear adhesive clay on the surface; someone is responsible for clearing the wheels and the sanitation of site access, it is prohibited to drive on the road if the wheel has the clay; paulin should be covered for the vehicles, which transport the dusty materials, such as lime, sand and gravel, cement as well as pulverized fuel ash (PFA), it is suitable not to be


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overloaded for assuring that the materials cannot be shattered during transportation; driving routes and time should be planed well for the purpose of avoiding to drive on sensitive area such as downtown, transportation central place and residential buildings, if the clay are shatters on the road in the process of transportation, cleaning work should be done immediately in order to reduce the dust caused by transportation; as for the section with high requirements on environment, night transportation can be chosen as the case may be for cutting down the effect of the dust against the environment.

② Sprinkling and cleaning measures can be taken to prevent and control the dust produced from construction filed and roads. Special warehouse should be provided to pile up building materials as cement, and the shattered cement on the floor must be cleaned in time, the bag should be guaranteed against breakage during transportation and loading; the piling site for lime and sandy soil is not be in the open air as possible, if those cannot be piled up in the open air, piling up area must be away from waters, and Sprinkling and Cleaning System should be laid down in order to improve surface moisture content, in addition, someone is in charge of sprinkling and cleaning the sites not less than 2 times at daily starting and closing time, the effect of which is to control the dust; when the construction is made on the road closing to environmental sensitive areas, the frequency and amount should be increased; it is required that one sprinkler can be prepared for the construction site of each sub-project.

According to relevant investigation, it is shown that main dust of the construction filed is produced by those running transportation vehicles, approximately accounting for 60% of total dust and relating to driving road and speed. Generally, under the effect of natural wind, the scope impacted by the dust produced by construction sites and roads is within 100m. If 4 ～5 times of daily sprinkling and cleaning works for dust-control are made, polluting distance caused by the dust can be reduced to 20-50m; sprinkling and cleaning can reduce 70 ～ 80 ％ of the dust, however, if the sprinkling is made after cleaning work has been done, under such case, dust-control efficiency can reach more than 90 ％ , please see the following table.

Table 128: Test Results for Sprinkling & Dust-Control on Construction Site

Distance (m) 5 20 30 50100-150

TSP（mg/m3）Average Without Sprinklin

g

10.14 2.89

1.15

0.86

0.61


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discharge Concentration by Hour

Sprinkling

2.011.40

0.67

0.27

0.21

③Hardening treatment must be made on construction site floor, conditionally, concrete terrace can be adopted.

④The selected construction unit should have certain power and capability, merchantable plant- mixing cement and closed transport vehicle are adopted, especially for the urban areas where environmental sensitive point are concentrative comparatively, at the same time, Cement Mixing Station should be built at construction sits, and merchantable cement should be used. As for temporary and odd Cement Mixing Fields, it should make the best of being away from residential buildings when selecting factory sites.

⑤ Shall strengthen the management on landfill earthmoving site and to regulate the measures such as earthmoving surface compaction, regular spraying and coverage; wasted soil and construction waste are not suitable to be piled up for a long time, so it should be collected and transported to low-lying lands for filling disposal appointed by municipal management authority or delivered to garbage landfill field to make appropriate disposal.

⑥After finishing the usage for temporary land, vegetation on such land should be restored immediately for the conservation of soil against erosion.

⑦The major Construction of Urban Sewage Pipe Network and enclosure pipeline for water source are made at the urban areas with comparative dense population, if there are many residential points near by and other environmental sensitive targets, and there are environmental sensitive targets within 200m on construction site, under such condition, the shield should be set up around there. There are environmental sensitive points within 50m on the way of Wuhe County’s large furrow, so when construction is operated on this section, clean and available shield should be set around there.

⑧ The bottom mud which is cleaned out from flood control ditch and reservoir of Huairou County, should be possible to be used for firming side ditch and restoring vegetation. The cleaned out life sewage should be sent to Garbage Landfill Field for reducing the time of site storage. In the process of cleaning the garbage, masking work should be done in order to prevent leakage and falling on the way.

⑨ When dredging sludge is stacked along the ditches in the process of drying, it should be tamped in time and the vegetation should be planted to restore Ecology and prevent dried sludge from producing secondary dusty pollution.

（3）Vehicle Exhaust


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①The reduction of pollution load is the fundamental way to handle the problem of air pollution, transport vehicle and construction machinery with fuel burning shall make use of qualified lead-free gasoline, inferior oil is prohibited. Daily maintenance and regular inspection to fuel burning machinery should be strengthen, engine should operate under normal and good state; at the same time, tail gas emission purifier should be installed to make tail gas reach discharge standard.

② Transport management should be reinforced, and spot check is made on tail gas emission certificate, the vehicle with tail gas over standard is forbidden to drive on the road.

③ Greenbelt management at both side of the streets should be strengthen. The plants as arbor and frutex available for absorbing the pollutants in tail gas and lawn are planted at both sides in order to prevent exhaust gas from spreading surrounding environments. Normally, adsorptive capacity of evergreen broad-leaved forest is stronger than deciduous forest and coniferous forest.

（ 4 ） Others: During construction period, the wasted building materials are not allowed to be reused as fuel. Works canteen should use Liquefied Petroleum Gas or Electric Cooking Utensils, and Oil Cooking Utensils are prohibited.

8.1.2 Prevention & Control Measures for Noise Pollution

From the analysis for the noise impact in construction period, we can see that the production of the noise is inevitable, the noise will be accompanying with the construction sites, and the noise from construction site will have great impact on surrounding environment. The places of subproject all have the distribution of sensitive point. According to Clause 22 of Noise Limits for Construction Site （ GB12523-90 ） ,the subprojects must carry out the said standard on surrounding boundary in the process of construction in order to reduce and get rid of noise impact to near sensitive point. From predicated results we know that the noise produced in the period of construction is over the standard regulated in Noise Limits for Construction Site. Try to prevent pollution, project construction and construction unit shall adopt relevant Prevention & Control Measures for Noise and reduce noise impact to environment to a great extent. In the process of actual construction, Regulations of the People’s Republic of China on Prevention and Control of Pollution and local regulations for Prevention and Control of Pollution from Environmental Noise shall be implemented strictly.

（1）Reasonable Arrangement for Construction Time ①Scientific construction plan shall be formulated in order to avoid the usage of high-noise equipments at the same time as possible; in addition, construction time for high-noise equipments shall be arranged at daytime to reduce night


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construction. Within 100m away from the section of construction site, where has environmental sensitive points, it is prohibited to operate with high noise and high vibration equipments at noon or at night.

②When construction is made near school and hospital, scientific construction plan shall be formulated, and construction unit shall consult with them for using time of high noise equipments, as for the school, it try to arrange the operation at weekend or out of class in order to avoid the impact on normal class.

（2）Reasonable Layout for Construction Site ①Reasonable arrangement shall be made for construction site, and high noise equipments shall be away from noise sensitive points as for specific construction site, which are impacted seriously, shall adopt temporary sound proof enclosing structure, or it is considered to build temporary workers barrack near sensitive points to replace the function of sound insulation wall, earth working project shall try to arrange several sets of equipments to operate at one time to reduce impact period. Fixed vibrated source of construction site is comparatively concentrated to reduce the scope of vibration interruption.

②The transport vehicle for construction is arranged to the side away from residential area when accessing the yard.

③The reduction for traffic noise on construction: Due to great impact of transportation on environment during construction, so it is necessary to reduce transportation volume at night and limit speed of large truck, and the accession of residential area shall have speed limit .In addition, transport vehicle shall make regular repair and maintenance and cut down or stop whistle, and transportation routes shall be arranged reasonably.

（3）Reduction of Equipment Noise Level①On the selection of types, low noise equipments or the equipments with sound insulation and noise elimination equipments, such as hydraulic machinery instead of fuel burning machinery, and high frequency adopted for vibrator, above described equipments shall be used. Compare to other vehicles at same level, the noise level of low noise transport vehicle is lower 10 ～ 15dB （ A ） on running processes, as for excavator and stirrer in different types, there is difference of 5dB（A）for noise level. ②Fixed mechanical equipments and excavating as well as earthmoving, such as excavator, bulldozer, ect, can reduce their noise through noise silencer of exhaust ducting and the separation of engine’s vibrating parts.

③The noise level of mechanical equipment will be increased on operation for the vibration of loosing parts or the damage of silencer, therefore, inspection, repair and maintenance shall be made for mechanical equipments, and the equipments


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should keep lubricating and each part shall be fixed to reduce vibrated noise on operation. Integral equipments shall be put firmly to keep good contact with the floor. Conditionally, vibration-absorbing base should be adopted to reduce the noise.

④Laid up facilities should be closed immediately, and transport vehicle shall slow down and cut down whistle.

⑤As for prefabricated components, such as bridge and storage gate, are tried to make at suitable site and transport to construction site for field assembly.

（4）Reduction of Man Made Noise①Machineries are operated as per regulations, and operating regulations should be abided by in the process of disassembling guard and bracket to reduce noise from collision.

②Whistle and bell are used less as possible in conducting operation, but state of the art equipments are adopted.

（5）Establishment of Temporary Sound Barrier ①As for machineries with relevant fixed place, machineries should try to access into in if those can be done in shed; if not, sound barrier of single side is established within 30m away from sensitive point.

②In addition to above mentioned noise reduction measures, construction unit should set up good community relation with surrounding units and residents, as for the units and residents disturbed by construction unit, notice should be given to that unit prior to operation, the construction unit shall report their construction schedule and adopted measures to reduce noise in order to obtain mutual understanding. In accordance with the regulations in “Law of the People's Republic of China on Prevention and Control of Pollution from Environmental Noise”, if the noise still cannot meet regulated limits after adopting noise reduction measures, construction unit should make apology and appropriate compensation to the organizations or individual impacted by the noise.

③ Adoption of Individual Protection Measures: Personal noise protection apparatus is the main protection measures adopted by individual. As for constructers, who are working near high noise equipments, can adopt assemblage and use noise protection apparatus such as earplug, earphone and noise protection helmet, ect.

④ In addition, Complaint call should be set up during construction period to accept and positively handle customers’ complaint on noise Disturbance.

8.1.3 Prevention & control measures for solid wastes


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（ 1 ） Prevention & Control Measures for Dredged Spoil and Desilting as well as Dredging Sludge

①Dredging soil and construction wastes are reclaimed at appointed place required by municipal and planning authority; construction unit must go through formalities on the discharge of dredged spoil and sludge according to regulations and sanitary landfill is made on appointed accepted place upon approval, meanwhile, the disposal facilities for leachate should be well-managed and reach the standard of discharge.

②If the acceptable capacity for filling place is limit, it is suggested that construction unit comprehensively use part of bottom mud, such as on paving the roads, making tiles and so on, in this way, Bricks and Tiles Plant can avoid and reduce the damage against farmland caused by borrowing the soil, and the realization of diversified investment promotes comprehensive improvement of river cause. Bottom mud should be monitored prior to comprehensive utilization, if it is found that the heavy metal in the bottom mud is over standard, such mud shall be delivered to garbage landfills to make sanitary disposal and not allowed to make comprehensive utilization.

③It is try to make internal earthwork balance of the project; dredged sludge can be piled up at both sides along large furrow, dredged spoil are used at filling area of the levee of Huaibei and for earthwork balance of piling up area; if the surface is polluted seriously, it is considered to deliver them to landfill space, but dewatering should be done at banks, hermetically sealed tank car is adopted for transportation. For example, part of sludge produced by construction in Huairou County can be used to reinforce the slope of flood control ditch and the embankment of dew pond at original place and dredged spoil can be used for other works in this way, the comprehensive utilization for the resources is realized. As for dredging sludge caused from Wuhe County can be piled up at both sides along large furrow, and dredged soil is used for the landfill of the works in Industrial Parks. The bottom mud dug out from Tianhe fishing ground in rive area should try to be used as soil for surrounding gardens and low lying place landfill.

④ Before clearance and dredging sludge are used comprehensively, according to actual requirements, bottom mud are monitored at selective points, if it is found that there is the heavy metal in the soil or the heavy metal in the bottom mud is over standard, such soil shall not be used for cropper, which is directly edible for human being.

（2）Prevention & Control Measures for Construction Wastes① The wasted sands and stone, building materials, steels and packing materials are managed and recollected by a person in charge to save the resources, after completion of construction, construction sited should be cleared in time, it is


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prohibited to pile up building wasted materials to affect city appearance and environmental sanitary.

② Building garbage as the tiles can be disposed by general storage method, however, the garbage must be finally sent to appointed disposal site.

③ Fully enclosed construction is adopted to control the pollution and effect within the scope of construction site during construction period and reduce the impact against surrounding environments as possible. And Barricading Piling Method is adopted to dispose dusty wastes

④ When delivering bulk and wasted materials, the transport vehicles must load appropriately, paulin or enclosed vehicle is adopted; outer clearance should be made well before starting to work at construction site, and shattering along the road should be prevented to avoid the effect on the landscape and sanitary; the materials transportation made by construction vehicles should try to be kept away from sensitive points of rush-hour traffic and driver on appointed section, meanwhile, relevant appropriate prevention & Control measures are adopted to cut down traffic pressure of the materials transportation and the leakage of the materials, it is possible to cause secondary dusty pollution.

⑤ It is prohibited to pile up engineering materials as sands and stone at peripheral lakes and rivers, meanwhile, engineering wastes and life sewage as well as piling site for wastes and storage point for garbage all should be away from water surface setup of lake and river. The mud shattered on construction site and detour should be cleared in time in order to prevent soil hardening from solidification and avoid the impact on the factory and road flat; Clearance and transport should be made for all kinds of garbage at construction site.

（ 3 ） Prevention & Control Measures for Life Sewage at Construction Site and Other Solid Wastes

① Temporary garbage dumping point is set up at construction sits, life sewage produced by the constructors and the garbage caused by the clearance from flood prevention ditch should be concentratively collected and piled up and transported outside in time, these garbage are not allowed to dump at periphery randomly.

② As for movable toilet that is set up at building camp should be regularly sanitized, and Environmental Sanitation Authority is responsible for regularly clearance and wash.

③ Barriers in riverway and riverbeach in construction section should be cleared out before clearance and the works of flood prevention pumping station begin to operate, life sewage piled along the ditch should be transported to garbage disposal plant, and discharge outlet for life and industrial polluted water are cleared in case of being blocked; It must be assured that there are no residue left


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in riverway when the cofferdam are removed after finishing the construction, and all need to be clear and tidy made by the requirements.

④ Construction machinery and the vehicle must be managed strictly, it is prohibited to leak oil bearing materials and dump these wastes at random so as to avoid soil and water environment pollution. Used oil and its containers belong to hazardous wastes of “waste mineral oil”, if the waste oil is not allowed to dump at random, under such case, it should be stored in special containers and then the qualified units are entrusted to make harmless disposal for those wastes.

8.1.4 Prevention & control measures for soil erosion

Before the execution of project construction, all kinds of pre-arranged planning on preventing soil erosion should be made well in order to protect and reasonably use water and land resources to a great extent. In the period of construction, the excavation for land surface is great, which produces a lot of wasted soil and seriously destroy vegetation, so if there is no appropriated measures, the soil loss will present the trend of multiply increase at the place where the project plans to be established,, therefore, strict environmental protection measures are adopted to effectively prevent the occurrence of soil erosion; on temporary occupying areas, the occupying time should be reduced as possible and the occupied land should be cleared in time to restore original function of the land; .in the period of all project and within the scope if the construction, the effective management and protection measures should be taken to cut down the impact caused by oil erosion by the greatest degree.

（1）Excavation during construction in period should try to avoid raining season, and daily excavation should be cleared on the day as possible, if not, daily excavated soil should be standardizedly piled up; temporary dumping sites should chose comparative flat places, and necessary facilities, such as flood prevention ditch, flood prevention pipe network or retaining wall, should be set on all sides in order to buffer and reduce the losses of wasted soil, and after finishing using the land, vegetation on such land should be restored immediately for the conservation of soil against erosion.

（2）On the river side, the afforestation function to prevent soil erosion should be fully considered, especially embankment project, during construction, two sides of the dike should be covered by dustproof net, when necessary, side ditch and stagnant pool on riverway are built; reasonable stacking of the earthwork at construction site should be given more attention and keep certain distance with riverway and ditch, in addition, straw bag are piled up all around to prevent the sand from inflowing into the waters and cut down the impact of soil erosion on


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rivers and drainage ditches; the afforestation should be made immediately after finishing embankment .

（3）There is height difference between some roads and surrounding terrain, so retaining wall is established at both sides of the roads to prevent soil erosion caused by rain wash.

（4）Original landform should be maintained as possible during construction, so the reduction of fill and excavation, earthwork volume and construction cost should be made for the purpose of trying to use initial vegetation to conserve water and soil. The program should be made well for the vegetation, which must be damaged; it is forbidden to destroy the plants at random in construction sites, after finishing the construction .At the same time, drainage measures in the period of construction are made well so as to avoid soil erosion caused by heavy rain.

（5）The work for earthwork balance under construction are made better, and the excavated earthwork should try to be used as backfilling soil for construction site; after backfilling, the rest wasted soil produced by laying the pipeline are delivered to other construction sites (e.g. embankment, flood prevention road works, ect.) as construction fill and the land for afforestation in order to avoid unreasonable landfill.

（ 6 ） the construction should not be completely expanded out to reduce the period of single project, but to be carried out in different sections and period, especially for the works of laying pipe network. Protection measures are adopted for the exposed area left by excavation, therefore, the exposure period should be cut down to reduce soil erosion.

（7）The slope of the works tries to adopt grouted square turf to obtain protection or turf as protection.

（8）Due to the reservoir and desilting from flood prevention ditch relating to the construction in Huairou County, the cleaned out sludge can be used for the slope of flood control ditch and reservoir according to argillaceous features, or delivered to garbage landfill field to fill. The reduction for the time of site storage is to prevent soil erosion caused by rain wash.

8.1.5 Prevention & control measures for water pollution

（1）When the buildings are under construction, the construction unit should set up sedimentation tank to discharge rain sewage and water pools at construction site produced in the period of construction after all reach the standard through disposal. Piling mud should be sent to designated place by the treatment of sedimentation and drying according to the requirements of urban area


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management department, and it is prohibited to discharge the piling mud into around farmland or ditches, reservoirs and rivers in case of blockage of drainage channel; at the same time, it is prohibited to discharge the piling mud into municipal pipeline network to block the pipeline.

（2）Storage area for construction materials should be away from surface water and set up runoff place where is not easily to be washed; in addition, storage area for powdered materials should be matched with the coverings such as straw bag and paulin and open ditch should be dug around storage area in order to prevent runoff washing .

（ 3 ） Planting the lawn or installing fixed filter screen for clay can prevent soil erosion caused by the runoff of rainfall.

（ 4 ） The discharge of life sewage from construction site must be uncompromisingly controlled. As for construction process presenting linear distribution just like pipeline, the builders disperse comparatively, so they should try to make use of existing life facilities near construction sites. If there are no sanitary facilities, oil separator tank and septic tank should be set up at construction site for the case of temporary restaurant set up at building site. After life sewage of the builders is pretreated, it is delivered to municipal departments to regularly make spot transportation, and then these life sewage are sent to sewage treatment plant by tank car available for sewage transportation, it is prohibited to discharge at construction site.

（5 ）Construction unit should adopt all necessary measures to prevent sewage without disposal from flowing into rivers and ditches.

（ 6 ） The management on construction sites should be strengthened, the sites and landfill slope of earthwork keep plat and tidy to reduce the earthwork to enter into riverway near landfill site; the wastes at construction sites must be cleaned and transported outside in time.

（7） Building materials, such as oil and chemical products, is not suitable to be filled near the rivers and waters and should keep away from rivers with temporary covered paulin to prevent them into water from washing out by gale and rainfall. Environmental management should be reinforced to avoid oil materials leakage caused by construction machineries or the dumping of oil materials into waters to produce pollution, and it is suggested that the method of vessel-receiving is adopted for oil leakage of the machineries.

（8）Dredging Works: construction should be done during dry season in order to avoid the impact caused by riverway flooding; the sludge produced by riverway Dredging should be stored at least 10m away from the shore according to the requirements of works design so as to avoid the sludge flowing into the riverway through runoff; sedimentation tank is put at low lying place of construction sits,


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and underground infiltration pumped by sinking pump, wasted water from construction operation and life sewage of the constructors are discharged into the waters after being disposed in sedimentation tank. There is foundation trench around sludge landfill field, which connects with sedimentation tank, the remaining water caused by sludge landfill are discharged into the river at downstream for avoiding flowing into riverway or the impact on water quality and environmental sanitary at construction sits led by wanton discharge .

（9）Flood Prevention Control for Tianhe: Construction should be done during dry season, and the construction period should be reduced in order to avoid the impact caused by riverway flooding. At construction sits of Tianhe Pumping Station, sedimentation tank is put at low lying place, and operating waste water of the construction, such as water building pit infiltration pumped by sinking pump, waste mud water, waste water contained oil, should be given priority to be reused at construction site after being disposed through sedimentation tank and grease trap, these disposed water are adopted as operating water and sprinkling to control dust in order to reduce discharge volume of waste water. The construction waste water and life sewage must reach Grade I Standard before being discharged into the Huaihe River. Side ditch for drainage must be set there when perimeter irrigation station and fishing ground of the Tianhe River are reconstructed, and sedimentation tank is put at low lying place away from the Tianhe River, after being disposed through oil separator sedimentation tank, waste water caused by construction should meet water operation requirements specified in “Standard for Irrigation Water Quality” and is discharged into the ditches of perimeter farmland, and it is prohibited to discharge those waste water into the Tianhe River directly. Dredging and excavating works for the bed need to done when reconstructing pumping station and fishing ground, the cleaned out sludge should be stored away from the shores in case of sludge and rainfall in storage filed flowing into the rivers; drainage ditches are set around the area for piling the mud, and project engineering wastewater is disposed at sedimentation tank that is set up at low lying place and flows into peripheral ditches in order to avoid engineering wastewater flow into the Tianhe River or the Huaihe River or directly into farmland soil.

（10）Water Environment Protection Measures for the Longzi Lake①In order to guarantee that dredging project engineering wastewater of the Longzi Lake reaches the standard, environmental monitoring plan regulated as per this report must be followed strictly, engineering wastewater quality are monitored at discharge outlet of sedimentation tank. Once it is found that water quality is over standard, engineering measures should be adopted to adjust the amount of medicine and increase staying time of engineering wastewater in order to ensure effluent water quality.


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②In order to avoid occurrence of leakage accidents on mud Conveyance Pipe in the process of transporting bottom mud to storage filed after dredging and excavating, several aspects should be controlled strictly, such as the selection of pipe materials, pipe installation g and so on. In the process of pipeline operation, daily maintenance and visitatorial inspection should be strengthen in order to find and handle possible leakage accidents and avoid the impact of pipeline breakage or mud leakage on water quality of Longzi Lake.

③In order to guarantee that there is no appreciable adverse effect on water quality of the Longzi Lake caused by landfill wastewater, during its initial engineering period, settling time should be assured not less than 48 hours, and in the latter period, Medicine Adding Settlement Promoting Method is adopted to guarantee that engineering wastewater reach the standard for discharge.

④During the period of hydraulic fill at storage field, special person is responsible for visitatorial inspection to low reclamation dam in order to find and handle possible leakage accidents caused by collapse and avoid the sludge flowing out into the waters or farmland leading to secondary pollution.

⑤ Distinct warning sign should be put around storage field for avoiding man made breakage on low reclamation dam or occurrence of the dangers caused by the strangers entering into the storage field by mistake.

⑥There is a small life sewage integrated treatment facility at construction site of the Longzi Lake Flood Prevention Pumping Station, life sewage of the constructors reaches Grade I Standard of Integrated Wastewater Discharge Standard after being disposed and then are discharged into the Longzi Lake. As for construction site of dredging engineering, life sewage produced by the constructors is little, and it is allowed not to build sedimentation tank, life sewage is discharged into storage sedimentation tank, and it mixes with dreading wastewater and then they are discharged together after being disposed.

⑦There is a sedimentation tank at construction site of the Longzi Lake Flood Prevention Pumping Station, after underground water at construction site is pumped into sedimentation tank, and then that water will be discharged into the Huaihe River through sedimentation, in addition, operation wastewater under construction is also discharged into the Huaihe River through sedimentation.

⑧After finishing dredging engineering for Lake Bottom and dismantling construction cofferdam of the Longzi Lake Flood Prevention Pumping Station, construction site for lake bottom should be cleaned immediately, building garbage are controlled strictly to leave at lake bottom, because those left garbage will impact water quality of the Longzi Lake and sedimental environment.

8.1.6 Measures for Reliving Social Environmental Impact RIg00002 A17978/CIGZ070287

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（1）All kinds of preparation should be made prior to construction; the contents relating to the works are investigated and understood in detail, and the preparation for emergency works should be done well cooperating with relevant authorities in advance to ensure normal state of social life.

（2） In order to cut down the impact on urban residents life and transportation caused by engineering construction into minimum degree, during construction period, the driving routes for the vehicle should be determined according to uniform traffic diversion plan in order to prevent traffic jam; a notice to reassure the public is made by making use of broadcast, TV, newspaper and magazine.

（3）A notice is put at construction site, it includes main contents of engineering, construction time, public acceptance for inconvenience brought by construction and states connect person as well as complaint hotlines, ect.

（4）Transportation for building materials and waste earthwork should avoid the rush hours or driving at night to reduce traffic jam and the impact on resident trip.

（5）Pipeline and river dredging engineering should adopt section construction, meanwhile, excavation and backfilling should be finished as soon as possible. Temporary pavement should be set, especially when the construction is carried out near public installations such as hospital, school and station, in addition, traffic warning signs are matched, and traffic polices disperse and dispatch the vehicle on the rush hours in order to ensure the smooth of pedestrian and vehicle; transportation for the materials should try to avoid rush hours so as to relief urban traffic flow pressure; when the pipelines cross through arterial road, priority will be given to pipe jacking construction for reducing the impact on transportation to a great extent.

（ 6 ） In order to guarantee traffic smooth for the residents, clearance and transportation for industrial garage clean out of pipe network and road construction should be done immediately.

（7）Low noise equipments are used for the project which must operated at night, and hanging height and direction of the construction lamps shouldn’t impact the residents’ rest at night.

（8）Emergency preparation should be done in advance by relevant authorities for the occurrence of the problems impacting residential water supply and discharge during construction period,

（ 9 ） According to relevant national and local resettlement policies and compensation for removal due to land expropriation, reasonable compensation and resettlement work should be made for the villagers whose lands are expropriated and houses are removed. At the same time, immigration comments should be appreciated to ensure their working and life conditions not less than


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current level and dwelling space is improved, in addition, residential area has complete matched public installations as school, hospital, nurseries and kindergartens, shop and transportation.

（ 10 ） Administrative staff and the constructors should be further cultivated on the education and awareness for cultural relic protection. During the period of construction, once the existence of cultural relics and historic sites had been discovered, administrative staff and the constructors shall notify Cultural Relic Protection Authority in time, and then construction will go on only after those cultural relic are properly disposed.

（11）After the Tianhe River’s fishing ground is demolished, its development and construction should be done according to protection program for the Tianhe River water source, at the same time, construction plan shall obtain the comment of relevant authorities on land, planning, water resources and environment protection. Development areas and land development intensity should be controlled.

（12）The breadth of the roads to be built is controlled to save land occupancy, and the reduction of vehicle flowrate and traffic pressure are favorable for cutting down loss degree on road bed and surface and reducing pollution from vehicle exhaust.

（ 13 ） Adverse impact on traffic will be reduced by speeding up schedule and cutting construction period.

8.1.7 Measures for Ecological Environment Protection

Instantaneous changes will be brought to existing ecological landscape during the period of construction, therefore construction should be done in section and area in order to appropriately protect ecological landscape environment along the line. The following points should be paid more attention during construction:

（1）Operating area for construction must be controlled strictly, and propaganda and education work on environment protection awareness should be enhanced for the constructors. During construction period, those deeply-excavated and high-filled road sections will destroy terrain, physiognomy, vegetation and occupy the land, and it also leads to surface exposure and alters soil structure to change ecologic structure and the function of the areas along the line, finally, the stability of ecologic system will be affected. Therefore, propaganda and education work on environment protection awareness should be enhanced for the constructors, and the constructors are forbidden to destroy the plant out of designed land.

（ 2 ） The construction process for roads and pipe net work should be done according to construction stage and area, and protection measures are adopted


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for the exposed area left by excavation, therefore, the exposure period should be cut down to protect surface layer and the plants. As for the flowers and trees planted, in the middle and both sides of construction section, transplantation and protection work need to be done well, and is it not necessary to replant all damaged plants, but temporary transplantation. Temporary storage and protection should be made after separating the soil layer with fertility on the land surface, reclamation green measures should be adopted after completing the construction. Engineering supervisory personnel are required to strengthen the supervision on such work, therefore, such operation is one of important factors for biological diversity within the land for construction use and improving survival rate of the plants and grass within the scope of project afforestation.

（3）The afforestation function to prevent soil erosion should be fully considered, under possible circumstance, afforestation should be made matching with factory green plan when one section is finished so as to reach the purpose of reducing soil erosion; turf side slope protection is a kind of engineering measures to create artificial phytocoenosis for temporary use to make the slope covered the plants quickly, the selected turf is the plant with the features of strong purifying ability, adversity resistance, easy control, high value for comprehensive use and landscape beautification available, at the same time, survival rate for the plants and good purifying effect should be guaranteed.

（ 4 ） The areas that need to be removed should be constructed with order in section so as to avoid landscape confusion along the line to disturb landscape appreciation, at the same time, the shield (wood, glass, and sheet iron, ect.) can be set up as surrounding barrier to reduce landscape pollution. During the process of construction, more attention should be given to the plants such as trees and green space in adjacent area.

（5）After reasonable distribution for cuts and fills is made well, piling point for wasted soil should take protective measures to avoid cutting and filling in raining period and prevent soil erosion, water pollution and blockage of drainage pipe caused by rain wash. Meanwhile, balancing of cuts and fill should try to be made better, and the excavated earthwork is used as backfilling soil for leveling off construction site; the rest wasted soil produced by construction after backfilling should be sent to filling and earth-moving area of north side of the Huaibei Embankment to make earthwork balance.

（6）On the premise of meeting the requirements of engineering construction, flat place should be selected as temporary piling site and floor area should be save as possible, at the same time, construction schedule should be arranged reasonably. After the completion of the works, construction unit must clear construction sits in time and withdraw occupying sites, in addition, those destroyed plants should be replanted as possible to recover original ecology.


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（ 7 ） As for temporary occupied land in engineering construction, reclamation measures should be positively adopted after finishing the construction in order to recover agricultural production as soon as possible.

（8 ）After the construction in piling site, which occupies flood land, is finished, grass seed should be sowed in time for afforestation in order to prevent dust caused by sludge drying and soil erosion in raining season.

（ 9 ） Dredging depth should be controlled strictly for avoiding serious impact against benthic biota and root system of submerged plant in bottom sludge.

（10）When bottom land training is done during reconstructing the Tianhe River fishing ground, dredging and excavating areas and acreage should be controlled strictly in order to cut down the impact and interference on ecological environment of the Tianhe River fishing ground.

（ 11 ） Ecological supervising works are assumed jointly by Project Supervisory Authority and environmental protection personnel of Construction Authority, and visitatorial inspection is adopted to check the implementing conditions of ecological protection measures.

8.1.8 Prevention & Control Measures for Other Pollutions under Construction

（1）During construction process, construction unit should try to make concurrent construction for those areas, where the roads and pipe networks all need to be done, in this way, roads destruction caused by the construction of pipe network can be avoided, which not only can lead to repeated construction, but produce pollution of noise, atmosphere and water against surrounding environments and bring ecological impact such as soil erosion and vegetation destruction.

（ 2 ） After entering into working area, the constructors regularly choose the pesticide to kill the pests such as mosquito and fly and adopt rattrap or poison bait to kill the rats in living area.

（3）Construction Management Authority should strengthen monitoring epidemic disease, make regular medical observation for the constructors and strictly follow the system of reporting epidemic diseases. Especially, the kitchen in construction site should have a complete medical examination and accept training on sanitary and anti-epidemic knowledge. In addition, prevention and treatment knowledge for frequency encountered diseases and usual illness (such as epidemic hemorrhagic fever, hepatitis and food poisoning) should be widely propagated in order to enhance group’s awareness on preventing and resisting the diseases.


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（4）Shall protect water source and get rid of pollution, and regular examination is made on drinking water quality and migrant workers’ food in order to cut down any possible way to pollute drinking water.

8.2 Prevention & control measures for pollution under operation period

8.2.1 Prevention & control measures for atmospheric pollution

8.2.1.1 Prevention & Control Measures for Road Vehicles Exhaust Gas

（1）Clean fuel (LPG)is widely popularized to reduce discharge volume of CO, THC and NO2 in vehicle exhaust. And the installation of exhaust purifier can reduce 70％ of CO and 50% of NO2 in vehicle exhaust.

（ 2 ） Afforestation of both side should be strengthened, the trees and grass available for absorbing pollutants in vehicle exhaust, such as arbor and frutex, are selected to be planted and their function in dust suction, noise reduction and environment beatification are given full play so as to control the spread of vehicle exhaust to surrounding environment, at the same time, the maintenance of afforestation is made well.

（3）Shall strengthen monitoring on vehicle exhaust, and the automobile on the road is monitored in strict accordance with standard, those which can’t meet standard are not allowed to drive on the road in order to control discharge source

（ 4 ） Shall strengthen management on the automobile to reduce vehicle idling mode and cut down the discharge of pollutants in exhaust.

（ 5 ） Shall strengthen daily repair and maintenance to keep good state and reduce discharge volume of pollutants in exhaust.

（6）The vehicle, the exhaust of which is over standard, should be eliminated in time.

（ 7 ） Further improvement should be made on passing conditions on crossing roads, and traffic signal cycle of city sections should be set up reasonably to improve passing rate of the vehicle, reduce the phenomena of traffic jam and abate pollutants in exhaust.

（ 8 ） The vehicles, which deliver the materials containing the dust, should use paulin to cover the goods, and the shatter of materials should be strictly controlled.

8.2.1.2 Reliving Measures for Odor Impact of Sewage Treatment Plant


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（1）Sanitary prevention and protection distance are set up in strict accordance with regulations, at the same time, shall guarantee that factory and surrounding living areas don’t suffered the impact of odor gas.

（2）Factory afforestation should be improved and green isolation belt is set up.

（3）Strict management should be made on storage, transportation and disposal process for the sludge.

（ 4 ） Accidents Emergency Response System is established to prevent risk accidents.

8.2.2 Prevention & control measures for acoustic environment pollution

8.2.2.1 Prevention & control measures for flood prevention pumping station

（1）High-quality low noise pumping station and air compressor are preferred in Flood Prevention Station; inlet & outlet pipeline’s size for the pump should be suitable and matching; acoustic enclosure should be set up out of air compressor, and sound insulation is realized by its internal acoustic material; flexible and elastic connection are made for inlet & outlet connecting pipeline of the pump, and pipeline support of the pump can be used as elastic bearing and pump assembly is treated as vibration insulation, such as metallic spring and robber absorber, to make shock absorbing treatment.

（2）Two storied gate and window are required to be set up in equipment room of Flood Prevention Station, and there is a greenbelt with mixed trees of arbor and frutex around pumping station in order to play a role in sound insulation and noise reduction against operating noise caused by Flood Prevention Station.

8.2.2.2 Prevention & control measures for road traffic noise

（1）The frequency for tracking monitoring on sensitive points near the section is one time after middle term of operating period, if the monitoring results show that the noise is over standard due to the increase of traffic volume, relocation measures should be adopted in time. It is suggested that resettlement for relocated residents be responsible for construction unit.

（2）According to scientific data, sound planning and scientific layout, Planning Authority, Environmental Protection Administration and Transport Authority cooperate wholeheartedly to do a good job on urban planning and avoid occurrence of new noise sensitive point. In order to reduce possible impact led by traffic noise, it is suggested that the authority in charge should notify relevant


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streets, governments and Village Committee at different levels along the line in an official documents not to plan and construct school, hospital and residential area near both sides of the roads. If it must be construction within the coverage of influence, under such cases, building owners are responsible for taking measures to prevent traffic noise at their peril.

（3）Construction quality should be controlled strictly in order to guarantee that there are no problems as sinking, crack and roughness occurred on pavement during operating period to increase driving noises.

（4）Under permitted conditions, it is suggested that pavement should adopt low noise pavement, which is made of Porosity Porous Asphalt Mixture Surface, and the noise can be made reduction of 3-6 dB(A) by comparing with traditional dense aggregate pavement.

（ 5 ） Shall strengthen the management on the vehicles. In the front of the hospital and kindergarten, the vehicles need to slow down and are forbidden to make tooting.

（ 6 ）The trees and evergreen ornamental arbor try to planted at both sides of reconstructed and newly built road, and the grass is planted the slope of the bridge, which not only can play a role of reducing the noise, but to improve urban environment and beautify road landscape.

8.2.2.3 Prevention & control measures for noise pollution from sewage treatment plant

Main noise sources of sewage treatment works are the equipment noises produced by Sewage Treatment Plant and Sewage Lifting Pump Station, including mechanical equipments such as sewage pump, blower, and the measures for preventing and controlling noises are adopted as follows:

（1）Low noise blowers, sewage pumps and the others are selected.

（2）Impedance complex muffler is set up at air inlet and outlet of the blowers.

（3）Sound insulation room is adopted for the treatment for noise reduction,

（ 4 ） As for aeration tank, the measures, such as vibration-absorption, sound insulation and underground tunnel blast, are adopted for blower house.

（5）Center control monitoring room is set up in blower house control, and it is not necessary for the operators to work in blower house.

8.2.2.4 Water treatment plant

Main noises of Water Treatment Plant under operation period are: blower and water pump. The noises caused by the operation of these equipments is between


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80~90 decibels, and it is able to meet the requirements of Standard of Noise at Boundary of Industrial Enterprises GB12348-90 (Class III) through sound insulation and reduction. Relevant noise control and Prevention & Control Measures should be adopted in order to cut down noise impact under operation period.

（1）Low noise equipments should be chosen as possible, as for the equipments with higher noise (（≥75dB(A)）, the measures as protective mask and insulation wall are adopted to reduce noise. All equipments adopt flexible connection and vibration insulation treatment should be made well as possible to reduce the noise caused by indoor equipment operation.

（2）The workers, who are working at noise environment for a long time, should be equipped with ear protector, and regular examination on their listening is made.

（3）Shall strengthen equipments maintenance and management to ensure them normal operation and avoid noise pollution caused by abnormal operation.

（4）Shall strengthen afforestation at open space, especially for blower house and around pump house. Open space around buildings is fully made use of, where flowers are planted, and parterre as well as greenbelt are built, in this way, a green system consists of parterre, greenbelt and avenue tree.

8.2.3 Prevention & control measures for solid wastes pollution

8.2.3.1 Prevention & control measures for solid wastes pollution at flood prevention pumping station

（1）Life sewage of the management at Flood Prevention Pumping Station should be collectively stored and delivered to Environmental Sanitation Authority to transport outside for disposal.

（ 2 ） Gate residue produced by inlet gate of Flood Prevention Pumping Station should be collected at designated points, after being drained, these gate residues are delivered to Environmental Sanitation Authority to transport outside for disposal, and it is not allowed to be stored near or around Flood Prevention Pumping Station.

8.2.3.2 Control measures for the sludge of sewage treatment plant

（1）Sludge bulkingSludge bulking is one of more difficult problems to be solved met by Sewage Treatment Plant, and it mainly occurs at secondary sedimentation tank. Sludge bulking refers to destruct the macrostructure of sludge floc caused by overgrowth of filiform microorganism, and filamentous substances disturb the compress and


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Sedimentation to lead to sludge bulking on volume. In the process of sewage treatment, if the influent concentration of the sewage is very high or aeration time is short, the activated sludge process is possible to overload. The features of the sludge deterioration are having putrid flavor, presenting ascending trends of activated sludge in secondary sedimentation tank and forming foam or appearing filamentous microorganism. For miscible liquid is not easy to separated, so it will impact sewage treatment.

The main measures for solving sludge bulking are as follows:

①Reduce reflux quantity of the sludge to remove more surplus sludge and promote the formation of fresh sludge in aeration tank;

②Increase air supply;

③Make a part of sewage after sedimentation for side stream in order to reduce load;

④Increase chlorine in return sludge;

⑤Add hydrogen peroxide instead of chlorine;

⑥Add nutriments in case of the content of nitrogen and phosphorus deficiency;

⑦Adopt step aeration as operating mode;

⑧Add the flocculants as ferric trichloride into secondary sedimentation tank;

⑨Stop temporarily to discharge digestion tank liquor to aeration tank;

（2）Sludge Thickening and DehydrationCo-treatment for Primary and secondary sludge in different stages has its own advantages and disadvantages, sludge fermentation is easy to be aroused at the time of sludge thickening, but sludge fermentation has the problems on hard compression and turbidness of supernatant liquor; and it is easy for the dehydration of secondary sludge at the time of dehydration. In order to prevent sludge fermentation at the time of sludge thickening, the method of adding coagulant aid can be adopted to improve stability of the sludge.

（3）Sludge, Gate residue and Sinking Slag Landfill All produced sludge, gate residue and sinking slag are delivered to garbage landfill site for sanitary landfill, and the accessing conditions for them are as follows:

① Require packing or container transportation for sludge, gate residue and sinking slag in order to produce secondary pollution on route;

② Transport implemented according to regulate time and running route


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After sludge, gate residue and sinking slag have entered into sanitary landfill, the following points should be made in the process of landfill:

① To cover the sludge with the soil day by day to prevent the production of odor and other environmental hazard;

② To Adopt mixing landfill for sludge and garbage favorable for anaerobic decomposition of the garbage.

（4）Shall regularly monitor the soil of sludge piling site and underground water, and stop continuing to do landfill and use in case of funding pollution problems and then remedial measures are adopted to prevent expansion or transfer of the pollution.

（5）Secondary pollution problems, such as air pollution and underground, should be prevented in the process of piling up and transporting the sludge. Protected special transporter is adopted for sludge transportation; meanwhile, the time of sludge transportation should be controlled strictly in order to avoid peak hours.

（6）Regular monitoring should be made on sewage treatment plant in order to prevent secondary pollution produced by heavy metal in the sludge; and garbage landfill site should be notified immediately if it is found that the heavy metal in the sludge is over standard. Sludge and life sewage are filled separately and strict watertight measures should be done well. In addition, bottom mud leachate is delivered to sewage treatment plant for disposal, and then it is discharged after reaching the standard.

8.2.3.3 Control measures for solid wastes in water treatment plant

（1）The sludge in Water Treatment Plant contains organic materials and various microelement as Ca、Mg、Fe, which not only can be used as the nutrients for plant growth to improve soil fertility and microbial activity of the soil so as to promote crop growth, but also solve the problem of final treatment on the sludge and use it into resource to create certain economic performance.

（ 2 ） Packing materials used for life sewage and medicine should be managed separately and placed at special places in order to prevent cross contamination, and then Environmental Sanitation Authority and medicine suppliers are responsible for disposing them separately.

8.2.3.4 Control measures for solid wastes in civil engineer

（ 1 ） Shall strengthen monitoring work on pollution treatment of solid wastes along the roads, relevant contents are compiled into Road Vehicles Operating Rules and Road Maintenance Rules and implemented subject to supervision of local Environmental Sanitary Authority.


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8.2.4 Prevention & control measures for water pollution

8.2.4.1 Prevention & Control Measures for Water Pollution on Road and Bridge Engineering

（ 1 ） The protective barrier for the section, where has canal bridge, should be reinforced, and warning sign for dangerous goods vehicle should be set up.

8.2.4.2 Prevention & control measures for water pollution on urban pipe network

（ 1 ） Municipal Infrastructure Authority strictly matches the construction of drainage branch on enclosure area and discharges life sewage along the areas into closure pipeline.

（ 2 ）Environmental Protection Authority in charge urges the company to make standardized construction on pollution discharge outlet, but the companied within the area of drainage works service are prohibited to discharge the pollution to surface waters.

（3） It is prohibited to dump the garbage to urban surface channel and culvert, and garbage is not allowed to dump into the waters to worsen pollution or block drainage channel.

（4）Shall strengthen the monitoring on water pollution, and regular water quality monitoring should be made for key waters, if the problems are found, please handle them immediately

（5）Shall speed up the construction of Sewage Treatment Plant to guarantee the validity of urban pipe network.

8.2.4.3 Prevention & control measures for water pollution of dredging ditch

（ 1 ） Shall strengthen the management along the ditches, and life sewage is prohibited to wantonly pile up so as to avoid the leachate of life sewage flowing into riverway to influence water environment on surface waters.

（ 2 ） Pollution discharge outlets, which are privately set up by the companies along the line and the residents, are strictly controlled. At the same time, untreated life sewage and industrial waste water are also controlled strictly to be discharged into riverway.

8.2.4.4 Prevention & control measures for water pollution of sewage treatment plant


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（1）The companies with heavy pollution are reformed on the spot, and shutout, stop, merge, transform or move are carried out for those companies, which don’t meet the requirements.

（2）The inflowing water quality to Sewage Treatment Plant must be controlled in order to guarantee normal operation of each Sewage Treatment Plant and make outflowing water quality meet national regulations on waste water discharge standard.

（ 3 ） As for the waste water, which is discharged by the companies with great polluting load, must be first pretreated in factory, and accidents reservoir should be built to avoid producing high load shock to Sewage Treatment Plant so as to impact treatment efficiency and effluent water quality.

（ 4 ） The measures for preventing the occurrence of risk accidents can be considered from the design and management, and then feasible precautions and measures for accidents can be proposed and Accidents Emergency Response System is established.

（5）Shall strengthen the monitoring on water pollution, including the monitoring on inflowing and outflowing water quality, the Huaihe River water quality of discharge outlet downstream, sludge storage and groundwater environment in treatment & disposal area, ect.

（ 6 ） Shall establish running management and operating responsibility system; and then staff training should be made well, in addition, technical examination file is set up, under such system, those who can’t pass technical examination are not allowed to hold a post.

（7）Under occurrence of the accidents, shall guarantee the normal operation of grillage and grit channel so as to make certain reduction of SS and COD in inflowing water; meanwhile, the reasons cab be found out from main pollution source of water collecting system, and relevant factories will adopt corresponding emergency measures to control discharge volume of microbial hazardous substances; if there is irresistible external cause, the conditions, such as dual –circuit power failure, unexpected natural disaster, will lead to the sewage to be discharged outside before being disposed, under such circumstance, source enterprise, in whole or in part, stops to discharge sewage to pipeline in order to make sure of safety waters function.

8.2.4.5 Prevention & control measures for water pollution of water treatment plant

（ 1 ） If waste liquid is able to meet the requirements of Sewage Discharge Standard of Grade III after accepting physical and chemical examination made by


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the Lab of Water Treatment Plant, it can be directly discharged into municipal sewage pipe network.

（ 2 ） Life sewage in the period of operation meets Grade III of Integrated Wastewater discharge Standard （ GB 8978-1996 ） after being disposed by treatment facilitates such as anaerobic tank, and then the disposed sewage inflow into urban sewage pipe network.

8.2.4.6 Measures for urban water source protection

The Tianhe River as emergency water source place of urban water supply of Bengbu City, protection should be made for the Tianhe River Flood Prevention Station when it is built and put into operation.

（ 1 ） Life sewage produced by the staff of the Tianhe River Flood Prevention Station flows into complete sewage treatment facilities after being disposed in anaerobic tank within living management area and then reaches the standard.

（2）It is suggested that a part of waste water will be reused to the factory as the water for afforestation and road washing after carrying out life sewage treatment of Grade II, in this way, the discharge of sewage and net water use are reduced.

（ 3 ） It is suggested to set up sewage collection pipe network in living management area, and the network connects with sewage treatment station. Waste water produced by washing the road still can be discharged into sewage treatment system to realize sewage zero-drainage.

（ 4 ） The sewage to discharge outside must reach Grade I of “Integrated Wastewater Discharge Standard”, and then lower culvert of the Tianhe River Gate is discharged into the Huaihe River, any waste water is prohibited, including water discharged into the Tianhe River by runoff erosion

（ 5 ） The quality for pipeline construction should be controlled strictly so as to avoid sewage leakage or overflowing into the waters such as the Tianhe River, the Huaihe River caused by damage of sewage pipeline and the occurrence of pollution accidents.

8.2.5 Measures for Ecological Environment Protection

（ 1 ） On the one hand, the tress within engineering construction scope will be transplanted; on the other hand, engineering construction will destroy surface vegetation within this scope and bring adverse impact on regional ecological environment. In the period of construction, original surface vegetation is destroyed by temporary project, but it will be restored after adopting some recovery measures.


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（ 2 ） The maintenance for road engineering and river training works should be made well, and it is prohibited to discharge hazardous substances into riverway along with drainage.

（3）In the latter period of the construction and initial operating period, according to landscape design, landscape engineering will be done by implementing afforestation to the section available within the scope of land expropriation, where engineering construction will be done.

（4）At both sides of the roads, those ornamental trees and shrubs, which have strong ability of resisting pollution and absorbing hazardous gas, have the function of sound elimination and dust control and possess certain visual value, are planted, in addition, those planted trees should be suitable for this area, and the mixture of arbor and frutex are planted. Dwarfing trees are planted densely at both sides of the roads, which form ornamental tree wall and is made of sound proof tree wall.

（5）The road waste water not only has higher suspended matters, but contains other pollutants as petroleum; Therefore, the waste water is not allowed to be discharged into farmland soil and waters. Side ditch for drainage should be set up at roadside to collect storm water runoff and make road waste water flow into low lying land, after sedimentation, these waste-water spill into surrounding farmland and ditches to reduce the soil erosion area and the degree for both sides of the roads against pavement rainfall and cut down the volume of water and soil loss.

（6）Extensive aquatic plants are cultivated and planted around the Tianhe River of rivage area, which connect with territory vegetation. In this way, diversified and abundant ecosystem is formed, which is able to cut down polluting impact caused by territory pollution source.

（7） After pumping station is finished, afforestation should be made as soon as possible around the factory, at both sides of the road and empty space in order to realize the restoration of the vegetation, in addition, the slope is stable, and then the rock and surface soil are not exposed.

（8）After ditch dredging engineering is finished, biological diversity in the ditch can be improved through artificially planting some aquatic plants and adding the aquatic animals as fish fry.

（9）Environmental sanitary management on dike should be done well and it is prohibited to dump the garbage. In addition, Environmental Sanitation Authority should enhance supervision and visitatorial inspection.


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9 Alternative Analysis

9.1 Zero-project analysis

Proposal A: Flood control and the implementation plan of ecological environment control project in Bangbu city

Proposal B: No-action and no-project (Zero Proposal).

The Zero Proposal comparative analysis results of eight sub-projects are showed in the tables below.


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Table 129: Zero-option Comparison of Tianhe Flood Control Project

ComparisonProposal A

Comparative results

Proposal B (no-project proposal)

Comparative results

Advantages

1. Improve the flood control standards and reduce the flood

disasters; Environmental improvements spur the economic

development; After the implementation of this project, when

the Tianhe River encountering 20-year flood, it will reduce

the submerged area of 15,000 mu and reduce the

submerged villages of 35. It can effectively protect economic

benefits of the areas around the Tianhe River.

2. Raise the water level of the Tianhe River, increase the

storage capacity and water volume, and ensure the

agricultural water use, city emergency drinking water, and

the need for ecological water at downstream during the short

water period of the surrounding areas.


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Disadvantages

1. Need to invest RMB65.2 million for construction;

2. Temporary covering area of about 1.5 mu, with the

permanent covering area of about 20.33 mu, also need to

remove the connecting buildings along the river side of the

original gates.

3. The construction will cause the temporary adverse impacts

on the surrounding water, air and sound environments, as

well as the farm soil.

1. Frequent disasters during the flood season, large

tracts of farmland, ponds and villages are inundated,

which affect the production and living standards of

the local farmers and restrict the developments of

agriculture economic and aquaculture. Coastal

agricultural irrigation is submerged, which cause

certain economic losses.

2. The water level is decreased during the dry year,

and the storage capacity is also reduced, urban

drinking water is in conflicts with the agricultural

irrigation water, while the self-purification ability of

the water body is weakened, so the water quality of

the Tianhe River is under the threat.

Table 130: Zero-option Comparison of Longzi Lake Flood Control and Environment Improvement Project

Comparison Proposal A Proposal B (no-project proposal)

Advantages

1. Increase the storage capacity, improve the water

storage capacity, reduce the economic losses

which caused by the floods.

2. Improve the security safeguard of the flood

control; lower the extent and scope of the flood

losses.

1. Without the investment and requisition of land.

2. Avoid the adverse environmental impacts during the

construction period.


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Disadvantages

1. Invest RMB67.6 million on the Longzi Lake

drainage station;

2. Occupy about 847 mu of the farmland, beaches

and ponds.

3. Produce certain adverse impacts to the water,

air, sound, and ecological environment.

1. A serious situation of water bodies, the water storage

capacity is significantly reduced, poor capacity to

regulate in the flood season; the surrounding area may

have the waterlogging.

2. Bottom land and without drainage facilities, affected by

amplitude of setup of the Huaihe River’s high-water

level, the overflowing water can not be discharged,

and the economic losses at the surrounding areas is

very serious.


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Table 131 : Zero-option Comparison of Urban (South of Huai River) Environmental Infrastructure Improvement Project


Advantages

1. Improve the urban infrastructure and the overall level of the urban

areas, promote the economic development and enhance the

investment capacity;

2. Improve the sewerage collection rate of the city; improve the

regional water environment and the ecological environment.

3. Enhance the capacity of drainage pump station, improve the ability

of urban drainage and flood control of the security safeguard in

flood season.

4. Comply with the overall planning of Bangbu City, and it is one of

the important measures of water pollution control.

5. The majority of public support this project and the construction of

the project meets the public demands.

1. Without construction investment costs

2. Avoid the various negative environmental impacts which

caused during the construction period of Proposal A.

3. Avoid the interference to the residents along the project.


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Disadvantages

1. Produce the dust, foul smell, sewage, noise, solid waste etc.

pollutions during the construction period, destroy the vegetation,

cause the soil erosion, increase the temporary traffic pressure, and

damage the landscape of construction site.

2. Produce the noise during the operation period of pump station;

affect the environmentally sensitive points within the short

distances.

1. The urban infrastructure construction level is below the

demand of economic development.

2. Low sewage treatment rate, which is far below the national

environmental protection requirements, further hamper the

economic development of the cities seriously.

3. Urban flood control level is not in line with the planning

requirements.


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Table 132 : Zero-option Comparison of Xijiagou & Baligou Environment Improvement Project


Advantages

1. Improve the flood control standards and increase the drainage

capacity, reduce the flood losses; Improve the environment, then

lead the economic development.

2. Increase 690 mu (Chinese acre) of available land through the

transform of Baligou bottom land, with the significant economic

benefits.

3. Remove the sludge and foul smell pollution of the ditches, improve

the water quality and reduce the pollution to the Huaihe River.

4. Demolish the illegal buildings and beautify the city landscapes.


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Disadvantages

1. Need to invest RMB78 million.

2. Need temporary covering area of about 660 mu, with the permanent

covering area of about 626 mu.

3. Need to demolish the buildings.

4. Increase the waste water, dust, noise etc. adverse environmental

impacts during the construction period at the site.

5. The construction causes the short-term traffic impact.

1. Bad current environmental condition, serious pollution

of the garbage and the foul smell, the illegal buildings

and waste dumps affect the urban landscape

seriously.

2. Poor capacity of storm water drainage, serious flood-

submerged situations in the surrounding regions,

which reduce the farmers’ income and living

conditions.

3. Weak natural landscape and the infrastructure, which

affect the investment works seriously.


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Table 133 : Zero-option Comparison of Huaishang District flood control and Urban Environmental Infrastructure Improvement Project


Advantages

1. Improve the flood control standards and reduce the impacts of flood

disasters, promote the regional economic development and improve

people's living conditions.

2. Increase the coverage of plants of the surface, reduce the soil erosion,

which are beneficial to improve the surrounding ecological

environment; beautify and enhance the overall image of the city.

1. Avoid the relocation of the residents in the construction

site; maintain their current living sate and land-using

state.

2. Avoid the adverse impacts on the environment during

the construction and operation periods.

Disadvantages

1. Cause temporary adverse impacts on the surrounding sound

environment, atmospheric condition and so on, destroy the vegetation,

cause the soil erosion; Increase the traffic pressure of the surrounding

areas temporarily, and damage the landscapes on construction site;

2. The road works will permanent occupy some land, and change the

land using patterns; Generate the traffic noise pollution and automobile

exhaust pollution during the operation.

1. The problem is at the construction site, where the

downstream water of Beifei River can not drainage due

to the amplitude of setup of the Huaihe River and the

Huaihongxin River’s high-water level, so it is very

vulnerable to have the waterlogging disasters;

2. The current state of water conservancy construction

and infrastructure of the construction site can not meet

the requirements of regional development, nor the

overall planning objectives, which restrict the urban

economic development extremely.


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Table 134 : Zero-option Comparison of Guzhen County Integrated Environment Improvement Project


Advantages

1. Improve the water quality and city ecological and landscape environment of

the Sanba River, improve the people's quality of the living environment, thus to

promote the sustainable development of Guzhen county;

2. Improve the concentrated sewage treatment rate of Guzhen, building the

foundation for the normal operation of the sewage treatment plant in the later

period;

3. Increase the construction of infrastructure and improve the investment

environment.

Avoid the various negative environmental impacts which caused

during the construction and operation periods of Proposal A.

Disadvantages

1. Cause temporary adverse impacts on the surrounding atmospheric, water

and noise environments.

2. Destroy the vegetation, cause the soil erosion, increase the temporary

traffic pressure and destroy the landscapes on construction site;

3. Produce the noise during the operation period of pump station; affect the

environmentally sensitive points within the short distances.

1. The urban infrastructure construction level is below the

demand of economic development.

2. A lot of untreated domestic & production wastewater

discharged into the city drains or the Sanba River directly;

as a result, the pollution of water body is worsening and

lowers the urban landscape level. Low capacity of city flood

control and drainage, subjected to frequent flooding

disasters and lower the living standards.


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Table 135 : Zero-option Comparison of Huaiyuan County Integrated Environment Improvement Project

ComponentCompari

sonProposal A Proposal B (No-project proposal)

Huaiyuan

Flood Control

Project

Advanta

ges

1. Improve city's overall capacity of flood control and drainage, increase

the flood storage capacity of the ponds and increase the drainage

capacity of flood discharge trench, so as to mitigate the flood harms to

the urban and residents.

2. Improve the surrounding environments of ponds and flood discharge

trench, improve the people's quality of life and promote the

sustainable development of Huaiyuan.

Avoid the various impacts which caused during the

construction and operation periods of Proposal A.

Disadva

ntages

1. Less dust, waste (sewage) water, noise, solid wastes and other

pollution are generated during the construction period.

2. Destroy the vegetation, cause the soil erosion, increase the temporary

traffic pressure and destroy the landscapes on construction site.

1. Low storage capacity of water storage ponds. Poor

capacity of flood discharge of the trench, with the

more disaster risks.

2. Frequent overflow situations of the ponds and flood

discharge trench during the heavy rain, which affect

the quality of life of the neighboring residents.

Huaiyuan

Road Project

Advanta

ges

1. Improve the highway grade and traffic level of Huaiyuan Country,

perfect the road network system, promote the city’s development and

improve the life of the local residents and the traffic conditions.

2. Perfect the infrastructure construction of the cereals and oils

processing zone, and improve the capacity to attract investment.

Avoid the noise and automobile exhaust impacts which

caused during the construction period of Proposal A.


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Disadva

ntages

1. Generate the dust, water (sewage) water, noise, solid waste etc.

pollutions during the construction period, destroy the vegetation,

cause the soil erosion, and damage the landscape of construction

site.

2. Generate the traffic noise and automobile exhaust during the

operation period, which affect the nearby residents.

1. Bad condition of County infrastructure and blocked

urban transport and roads, which limit the overall

development of Huaiyuan Country and the foreign

exchanges of the residents.

2. Lack of the infrastructure construction in the cereals

and oils processing zone, which affect the logistics

level and the capacity to attract the investment.


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Table 136 : Zero-option Comparison of Wuhe County Mohekou Integrated Environment Improvement Project


Advantages

1. Construct the new drainage pump station, improve the capacity

of flood control and drainage on the construction site, reduce the

regional disaster risks, improve the investment environment and

promote the sustainable economic development.

2. Construct the new surface water plant and sewage treatment

plant, enhance the safety of the regional drinking water, and boost

the discharge of sewage up to standard of the enterprises in the

park, so as to reduce the pollution to the Huaihe River.

3. Improve the level of infrastructure and spur the development of

related industries, as well as provide more employment

opportunities.

1. Avoid the relocation of and the requisition of the

farmlands of the residents in the construction site,

maintain their current living sate and land-using state.

2. Avoid the adverse impacts on the environment during the

construction and operation periods; stop the pollution

risks of industrial wastewater to the Huaihe River.


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Disadvantage

s

1. Cause temporary adverse impacts on the surrounding

atmospheric, water and noise environments.

2. Relocate the residents, requisition of the farmland, destroy the

vegetation and natural landscape;

3. Sewage treatment plant, water purification plant, roads etc. will

permanent occupy some land, and change the land using patterns.

4. Enterprises generate the wastewater, exhaust emission and

noise pollutions during the production.

5. Sewage treatment plant and other plants generate the foul smell,

sludge and other pollutants during the operation, which affect

surrounding environment to a certain degree;

6. Raise the sewage treatment costs and increase the living

expenses of the residents;

1. Along with the economic development of the park, under the

lack of infrastructure, the discharge of the sewage from the

enterprises will increase the volume of sludge in the big

ditches and the pollution levels, further to threaten the

security of groundwater, and affect people's quality of life and

sustainable economic development;

2. Low level of the enterprise sewage treatment, which cause

the pollution to the Huaihe River.


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9.2 Comparison and selection of dredging method for Longzi Lake

There are two dredging methods to dredge the bottom mud; one is adopting the twist-inhale dredger, while another is using the hydro slurry unit set to dredge

Dredging works first begins from the southern dredging area in Nanhu District. Preparation work should be done before dredging, including the operation of barriers clearance on River Surface and Beds, flow guide for construction and the establishment of reclamation dam at piling up site and discharge outlet. Barriers Clearance Operation is to remove the barriers available for fishing, such as deadman, bamboo rod, waste fishing net, shipwreck and submerged dike, in order to ensure the safe of dredging construction.

Flow guide for construction generally can be classified into two basic methods, namely, Whole –Section Cofferdam Method and Sub-Section Method. The basic features of Whole –Section Cofferdam Method refer to that main stream channel is intercepted with one time and water flow is led to the side of outlet structure. And flow guide for Sub-Section Method is also called Sub-Section Method or flow guide in riverbed. The so-called sub section means that riverbed is formed by several dry -land building pits and is constructed sectionally.

Hydro slurry unit set is adopted for construction, and the builders operate the high pressure water jet to cut off high concentration slurry, and then slurry pumping station delivers them into piling up site by soil discharging pipeline. When retention time for bottom mud at piling up site has been over designated retention time, dredging project engineering wastewater produced at upper layer is discharged from outlet structure of the piling up site.

When amphibious environmental sludge clearance machine is adopted to carry out the construction, the scoop of the dredger is put on the mud layer to dig out polluted sludge, and then the slurry is formed by the mixture of soil and water, which is delivered to soil discharging pipeline by using the function of mud pumping station through dredging tube. Soil discharging pipeline can be linked to land based pipeline with surface water floating pipeline and also to downcast pipeline with by surface water floating pipeline and then to surface water floating pipeline, at last, it links land based pipeline to discharge the slurry into piling up site.

The facilities at piling up site, such as reclamation dam and outlet structure, are set up and installed around selective bottom mud piling up site.

The comparision for applicable conditions andadvantages & disadvantages of two dreaging methods is made as the table below:


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Table 137: Advantages & Disadvantages Comparison for Dredging Methods

Item Hydro Slurry Unit SetAmphibious Environmental

Sludge ClearanceMmachine

Main Machinery

and Equipment

Floating-body, slurry pump, high pressure

water jet, pipelines and power installations

Dredger, slurry pump,

pipelines and positioning devices

Applicable

Condition

Rivers and rivers with shallow water and less

water volume.

Larger scope of the water bodies and

broader applicable conditions

Energy

Consumption

Slurry pump and high pressure water jet

consume the electricity.

Slurry pump and high pressure water jet

consume the electricity.

Dredger consumes a lot of fuel.

Work efficiency

Lower efficiency, greater construction intensity

and labor intensity, as well as the longer

construction period.

Higher work efficiency, less construction

workers, as well as the shorter construction

period.

Early Period

Preparation

Need to construct by drying the ponds, thus

need the flow guide before the construction.

Construction for drying resertvior is not

required, and flow guide is not required

before construction

Discharge

DistanceShort discharge distance

Long discharge distance, with flexible

discharge distance.

Precision

Manual control, higher precision of the depth,

without the restriction of the bottom

topography, the geological and surrounding

environments.

there is no great difference between the

precision degree and hydro slurry unit set

Environmental

Impact

Electricity consumption only, with fewer

pollutants.

Build the cofferdam for flow guide before

the construction, so as not cause the

water suspensions rise sharply.

Less dredging works and the generated

project residual water can be used for the

Generate the fuel exhaust

Less dredging works with less

discharge volume of the dredging

residual water.


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high pressure water jet, with the less

discharge volume of the residual water.

Ecological

Impact

Because of the small impact on the water

quality, it has the less impact on the

phytoplankton & zooplankton and fish in

the water consequently.

Less destroy to the benthic fauna and

their survival environment of manual

dredging.

High precision of depth, available for the

reduction of the dredging volume of the

bottom mud and thecovering area in

piling up site.

Less impact on water quality, and

lighter impact on water phytoplankton and

zooplankton

Less impact onbenthic fauna and their

survival environment

High precision of depth, available for

the reduction of the dredging volume of the

bottom mud and thecovering area in piling

up site.

As a result of the thickness of the project’s pollution layer is within 0.3m, and average depth of the Longzi River is around 3m, but it is not realizable to construct with drying reservoir for huge area of river water. From the comparison made for Advantages & Disadvantages Comparison for Dredging Methods and comprehensive analysis on the construction precision, environmental impact and disposal situation of the dredging bottom mud, it is thought that the hydro slurry unit set is suitable for the construction of this project.

9.3 Comparison and Selection of Closure Pipelines Route of Sewage Outlets to River Located in West of Guzhen

Closure Pipelines project of Sewage Outlets to River Located in West of Guzhen is connecting the closure pipelines in the pond below the railway bridge of the park located in the west of the city, which intercepts the sewage of west of the city to the sewage main pipe of Huangyuan Road. According to the field inspection, the pipelines route of this project has two options, which are Proposal A and Proposal B respectively.

Proposal A: Below the railway bridge of the park located in the west of the Guzhen→Railway Station Square→Huihe Road→Join the sewage main pipe of Huangyuan Road;

Proposal B: Below the railway bridge of the park located in the west of the Guzhen→Railway Station Square→Huihe Road→Shengli Road→Miaogang Road→Join the sewage main pipe of Huangyuan Road;

Both the advantages and disadvantages of the two proposals are shown in the table below.


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Table 138: Comparison of Closure Pipelines Route Proposals of Drinking Water Source

Proposal A Proposal B

Advantages 1. Due to shorter length of the pipelines, so

the investment is smaller;

2. Due to the wider road way of Huhe

Road, the laying of the pipelines shall have

little impact to the traffic.

1. Shengli Road and Miaogang Road are

not the main roads, and the traffic flow is

relatively small.

2. Fewer public facilities at the both sides

of Shengli Road and Miaogang Road,

such as hospitals, schools etc. which are

vulnerable to be affected by the

construction.

3. Shengli Road and Miaogang Road are

the roads under the plan to modify of

Guzhen, the laying of the pipelines and

the road construction can be carried out

simultaneously.

Disadvanta

ges

1. There are more prosperous sections at

the both sides of Huihe Road, such as a

number of schools, hospitals etc. maybe

affected by the construction.

2. Huihe Road is the main road of Guzhen

with the heavy traffic; the construction will

generate a greater impact to the traffic.

1. Longer length of the pipelines, with the

bigger investment;

2. Narrow road and it is not convenient for

construction.

In summary, this environmental evaluation deems Proposal C is the best on the environment, on the one hand, the set of sewage outlet along the Huaihe River must obtain the written consent of water conservancy department and the environmental protection department, in principle it can not increase new sewage outlet along the Huaihe River shore; on the other hand, according to the modification notice of “Pollutant Discharge Standard of Municipal Wastewater Treatment Plant” GB18918-2002 and suggestions of Environmental Protection Bureau, the sewage discharged into the Huaihe River must meet Grade I a standard, but the emission concentration of the pollutants of Grade I a standard can not meet the requirements of "Standard for Irrigation Water Quality” (GB5084-92) , can not be used for irrigation. As the tail water of mainly proposed fine chemical wastewater, if it is discharged into the farm irrigation trench, it will cause certain pollution risks on the surrounding soil, groundwater and crops, particularly for the water crops. We can see that, it is not suitable to discharge the tail water of sewage treatment plant to the Mochongyin River, thus this


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environmental evaluation suggests to discharge the tail water of sewage treatment plant to diversion channel of the Sanpu River drainage station through the pipelines, then through the outlet of drainage station to discharge the tail water of sewage treatment plant to the Huaihe River. Proposal C is the recommended proposal of this environmental evaluation.

9.4 Comparison and Selection for the Establishment of Sewage Treatment Plant

9.4.1 Inflowing Water Quality

The mainstay of Bengbu Chemical Industry is fine chemicals and key industries relate to biochemistry, organic intermediate and chemical products, ect, the products of which cover many chemical production spheres, such as feed additive, food additive, additive, flavoring material, medicine, insecticides, paint, chemical reagents and organic intermediate. Meanwhile, biochemistry, organic intermediate and medicine consist of there features of Bengbu Municipal Chemical Industry. Mo Hekou Industrial Area of Wuhe River Economic Development Zone, which focus on fine chemicals and takes general industry into consideration. Survey for the condition of existing signed enterprises can refer to the following table.

Table 139: Survey for Enterprise Basic Information of MoHekou Industrial Park

S/N Enterprises Name Products Production Type

1 AnHui Juyuan Chemical Co., Ltd o-

phenylendiamine

Chemicals

2 WuTong Battery Battery Light Industries

3 AnHui Longhai Seed Industry Seed processing General processing

4 AnHui Yongheng Textile Textiles Products Light Industries

5 BengBu Fu Ande Filter Light Industries


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6 BengBu Clutural Color Printing Printing and

Packing

Light Industries

7 TongDa Municipal Administration Insulated Material Light Industries

8 BengBu Tengfei insulated Container Building Building

9 BengBu Municipal The Huaihe River

Rubber Ingredients

Activator Chemicals

10 BengBu Municipal GuangHua Fine

Chemicals Plant

Activator Chemicals

11 BiaoShen Electronic Technology Co., Ltd. Electronic

Products

Light Industries

12 Japan Cherry Bolossom Technologies Co.,

Ltd

Daily Chemicals Chemicals

13 Qian XinKun International Co., Ltd Textiles and light

industrial products

Light Industries

14 Beijing Feige Dadi Cultural and Art Cnter Handicraft Culture

15 Jiasi Chemicals m-chloroaniline Chemicals

16 Shanghai Dexiang Timber Co., Ltd Density Plate General processing

17 Wuhai Kaidi Electric Power Co., Ltd Power Supply Straw Power Supply

18 TaiDe Development Co., Ltd Daily Chemicals Chemicals

19 Anhui Baishi Chemical Co., Ltd Vanillin Chemicals

20 Bengbu Longchang Rubber Products Co.,

Ltd

Rubber Tubing Chemicals

21 Nantong Huaxia Chemical Co.,Ltd Plastic Products Chemicals

22 Hefei Jianlong Health and Technology Co.,

Ltd

Gelatine Chemicals

After Sewage Treatment Plant established in Park, the drainage for regional enterprises shall implement Grade 3 of Integrated Wastewater Discharge Standard (GB8978-1996). Take CODcr index as example, Grade 3 Standard of CODcr is 1000mg/L for chemical area, which possibly involves the industries, such as dye, organ phosphorous pesticide, medicine pharmaceutical ingredient and


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biological pharmacy, it is higher than the requirements of general enterprises,that is, Grade 3 Standard of CODcr is 500mg/L. Therefore, Jinshui water quality of Water Treatment Plant should refer to those sewage treatment plants, which have been established and formed certain industrial scale, e.g. Sewage Treatment Plants in Shanghai and Nanking Chemical Area.

Shanghai Chemical Industrial Area is located at North Bank of Hangzhou Bay and its planning area is 29.4 km2. This is one of the largest -scale investment industrial projects in China during the period “Tenth Five Years Plan” and is the first special development zone taking petroleum and fine chemicals as orientation, meanwhile, it also becomes the southern center of Four Great Industrial Bases in Shanghai. The development of Shanghai Chemical Industrial Shanghai Area has formed certain scale, at present, so many Transnational Corporations referring to British Petroleum and Chemical Cooperation, BASF Aktiengesellschaft, Germany Bayer, Germany Degussa, America Huntsman Corporation, Mitsubishi Gas Chemical Company, Inc, Sumitomo and world famous public utility enterprises including Suez, VOPAK, France Air Liquide Group, Praxair Electronics, ect all have been settled in this Area. Shanghai Chemical Industrial Area has formed a complete products chain, which consists of three parts, namely, the first part is the up-stream products that include Naphtha, ethylene and so on, the second part is middle-stream products that involve isocyanate, polycarbonate, ect and the last part is downstream products that refer to fine chemical, synthetics and so on. In order to meet discharge requirements of biochemical production enterprises as petrochemical industry, a Sewage Treatment Plant has been established and operated in Shanghai Chemical Industrial Area, its sewage treatment scale is 7000m3/d and it mainly receive production wastewater produced by the projects ofGaohua Phenolacetone, PVC of Tianyuan Chemicals, Bisphenol of Bayer Company, poly-isocyanate and so on.

Nanjing Chemical Industrial Park is located at Jiangbei Region of Nanking. This region is the earliest chemical base where has many large- scaled enterprises at present, such as Yangzi Petrochemical Company, Sinopec Petrochemical Group, BASF-YPC Company Ltd, a Joint Venture made by BASF Aktiengesellschaft and Nanking Chemical Indurstrial Company. Nanking Chemical Industrial District covers 41 km2, where mainly focuses on the development of petrochemicals, basic organic chemical materials, chemicals, polymer material, new type chemical materials and life medical projects.

Inflowing index for above mentioned two sewage treatment plant in chemical area can be seen in the table below.


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Table 140: Inflowing Water Qaulity of Sewage Treatment Plant in Haihua and Nanking Chemical Area

Name Inflowing Volume (m3/d)

CODcr(mg/L) BOD5(mg/L) SS

Sewage Treatment Plant in

Shanghai Chemical Area

7000 700 250 350

Sewage Treatment Plant in

Nanking Chemical Area

12500 1000 300 300

We can see from the introduction for the said 3 chemical areas that Mo Hekou Park has obvious similarities on industrial features with another 2 chemical areas in Shanghai and Nanking, therefore, the analogy for the condition of inflowing water quality between above mentioned 2 chemical areas will have more important guiding significance on determining the water quality of this project.

According to the analogy made for the sewage treatment plants of this project and other domestic sewage treatment plants, the inflowing water quality of industrial park is decided to be set as follows: CODcr450mg/L, BOD5120mg/L, SS200mg/L, NH3-N30mg/L, and TP3.5mg/L.

Sewage treatment plants in chemical area are different from other general municipal sewage treatment, its main inflowing water is indusial waste water in industrial park, so organic content in pollutants is generally lower than urban sewage, from the angle of conservative design, if inflowing water quality is decided as per upper limit statistics concluded by research and investigation, it will be favorable to guarantee the reliability for late sewage treatment to reach the standard.

Therefore, the opinion of this environmental evaluation is that feasible studying inflowing water quality to be decided is relevantly lower, and it is advised to make fully demonstration on subsequent design.

9.4.2 Feasibility for Technology Standard

Inflowing water quality in Sewage Treatment Plant of Mohekou Chemical Industrial Area is the industrial wastewater primarily produced by Fine Chemical Enterprises and Pharmaceutical Enterprises, its organic pollution concentration is very high and the biodegradability is worse, therefore, these wastewater need to be disposed with high degree, and multi-system complex treatment plan must be adopted in order to realize the treatment for those produced wastewater.


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The industries in Tianjing Municipal Chemical Industrial Area take green fine chemicals and ocean chemicals as leading role and primarily focus on the development of highly valued high-tech industries such as pharmaceutical chemicals and new materials. Through the comparison and selection & argumentation for sewage treatment technology and the survey condition for the analogy of sewage treatment works in chemical area, Hydrolytic Oxidation+ Bio-Reaction+MBR Filter Technology is finally adopted in order to ensure that final water quality meets Grade 1 Standard B of “Pollutant Discharge Standard of Municipal Wastewater Treatment Plant” (GBl8918-2002).

Hydrolytic Oxidation Tank performs the function of anaerophyte to hydrolyze macromolecular persistent organic substance in water into molecular degradation labile organic substance in order to reach the purpose of improving biodegradability of wastewater and partial organic substance degradation. The fillers are thrown into Reaction Tank when the water of Hydrolytic Oxidation Tank outflows into it. The specific surface area of the filler is great, so it is available for microorganism to absorb and grow. When aeration oxygenation is made, ascending buoyancy of air bubble propel the fillers and around waters to flow, when cutting through the gap of the water and fillers, the air is reblocked by the fillers and cut into small bubbles. In such process, the bubbles are mixed with wastewater after fully stirring, so the connection and delivering efficiency between biological membrane and oxygen are strengthen. The growing microbial biomass on the fillers is greater than floating microbial biomass in water, which greatly improves treatment efficiency and is effective to prevent sludge expansion, especially for the fungus with long history and periodicity, such as nitrifier, and the fillers can ensure their ability of viability and propagation, so it is favorable for nitrification. The project adopts the technology of chemical desulphurization and polyaluminium is determined to be as technological medical reagent for desulphurization; the process is that chemical desulphurization reagent is put into Biochemical Reaction Tank, and then the produced sediments can be removed with the excess sludge.

The filtration of membrane in MBR (membrane bioreactor) can make macromolecular fully intercepted into Bio-Reactor to realize complete separation of HRT and SRT in order to keep higher MLSS and longer SRT in reactor, in this way, favorable conditions are created to improve removal efficiency for persistent and dissolved organic substance, and the volume of excess sludge is greatly decreased.

According to survey condition for CODcr removal rate index at different stages of Sewage Treatment Plants with same technologies, 3 main technologies, which include Hydrolytic Oxidation+ Bio-Reaction+MBR Filter Technology, are adopted


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to realize CODcr removal performance, and predicated outflowing water quality is as follows:

Table 141: Schedule for CODcr Removal Effect and Predicated Outflowing Water Quality on Key Technologies

Project CODcr Concentration

Removal Rate

Inflowing 1000mg/L

Hydrolytic Oxidation Pond Outflowing 600 mg/L 40%

Bio-Reaction Tank Outflowing 90 mg/L 85%

MBR Unit Outflowing 45 mg/L 50%

We can see from Analogic Survey Condition that the adoption of Hydrolytic Oxidation+ Bio-Reaction+MBR Filter Technology can make CODcr reach Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GBl8918-2002), Grade 1, Standard A.

The opinion of this environmental evaluation is that outflowing water quality cannot meet Grade 1 Standard A of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GBl8918-2002) by adopting the technology for A2/0 microporous exposure oxidation channels treatment; therefore, the technology should be fully demonstrated on subsequent design.


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10Public Consultation

For specific form, content and time of the information publicity and public participation for this project, refer to Table 1422.

Table 142: Summary of public participation and information publicity work

Conte

ntMode Place Time Executive body

Infor

matio

n

public

ity of

the

propo

sed

projec

t Issuance of announcement at

the construction site

E-announcement column of

Huaishang district

government

2007.1.26

Huaishang district

government &

environmental evaluation

agency

Administrating Committee of

Mohekou Town Park2007.1.30

Office of Wuhe County

World Bank Project

Leading Group and


agency

Open Government Affairs

Column of Guzhen County

Government

2007.1.27

Office of Guzhen County

World Bank Project &


agency

Announcement column of

Huaiyuan County

Government

2007.1.26

Office of Huaiyuan County



agency

Announcement column of

Qinji town and Changqing

township

2007.1.28

Yuhui District Government

& environmental evaluation

agency

Online project information

announcement

Website of Bengbu Municipal

People’s Government2007.3.30

Municipal Project Office &


agency

Publication of information in

the newspaperBengbu Daily 2007.4.4

Municipal Project Office

&environmental evaluation

agency


the newspaper


the newspaper

2007.8.10 Municipal Project Office &


agency


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Announcement of the full text

of environmental evaluation

report

Libraries of the city and three

counties2007.8.10


governments of the three

counties

Public

partici

pation

for

the

first

phase

Seeking public opinions

（simultaneous release of

questionnaire for public

participation）

Old urban district, Longzihe

district, new & hi-tech zone

and economic development

zone

2007.1.25

～1.30



agency

Qinji town and Changqing

township

2007.1.28

～1.30

Yuhui District Government

& environmental evaluation

agency

Xiaobengbu village,

Shuangdun village, Wuan

village, Jintai village and

Chengtai village in

Huaishang district

2007.1.26

～1.30

Project Office of the district

government &


agency

Afflicted villages near

Mohekou Town Industry

Park and Sanpu village

2007.1.30

County Project Office,

Administrating Committee

of the Park &


agency

Chengguan town of Guzhen

county and near suburban

villages

2007.1.28

～1.30

Office of Guzhen County



agency

Chengguan town of Guzhen

county and near suburban

villages

2007.1.26

～1.28

Office of Huaiyuan County

World Bank Project

Leading Group &


agency

Public

partici

pation

for

the

secon

d

phase

Public consultation forum

（ imultaneous release of


participation）

Meeting room of Wuhe

Mohekou Industry Park

Administrating Committe

2007.7.6

Administrating Committee

of Mohekou Park &


agency

Meeting room of Guzeh

county government

2007.7.9 Guzhen County

Development & Reform

Committee World Bank

Project Leading Group &


agency


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Meeting room of Huaiyuan

county government2007.7.9

Huaiyuan County

Development & Reform

Committee World Bank

Project Leading Group &


agency

Seeking public opinions

（simultaneous release of


participation）

Old urban district, Longzihe

district, new & hi-tech zone,

economic development zone,

Huaishang district and Yuhui

district and

2007.7.4～7.10

Sub-project Office, Owners

of the city and district

projects and


agency

Seeking experts’ opinionsLetter of seeking opinions is

sent in Bengbu city

2007.7.5～7.15

Office of Bengbu City



agency

10.1 Public Participation

The public notification of project information means the announcement of the content of the intended project and the potential environmental impact to the public of the project site, so that the group affected by this project and the local public can be acquainted with relevant information in time.

The information publicity of this project is carried out in three stages by the ways of publishing the issue information in newspapers, publicizing the information of planned construction project in the government bulletin board, showing the project’s content and the full text of the environmental impact assessment (EIA) report publicly in the public website, displaying the EIA documents in the local library at the construction location, etc.

During the first stage, in premise of preliminary determination of the project, publicize the information of the project, which plans to use the World Bank loan, in the government bulletin board and local newspapers at the project construction place;

During the second stage, in preliminary development of the environmental impact assessment work, based on the completion of establishing the General EIA Summary, publicize the project basic situation and the potential environmental problems in local government’s website, in order to let the local public gain related data and information promptly and to collect and feed back the public opinions;

During the third stage, after completing the first draft of the environmental impact assessment report, publicize all the EIA reports of the sub-projects and


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the overall EIA report in the public website, publicize the EIA reports of the sub-projects in the Bengbu local website and display the report text in the local library at the construction place, to facilitate public of the construction place to get the related data. The overall EIA report is publicized in the World Bank website after being translated into English.

At present, information public work at the first stage and the second stage has been handled and completed by the EIA agency together with the construction agency and local government of the construction place from January to March in 2007. In April, 2007, the World Bank project leading office in Bengbu city has demonstrated the project construction information publicly in "the Bengbu Daily" with newspaper publicity, and announced the website for detailed information issue and the contact telephone. At the same time, PMO has publicized “information publicity of the construction project of Bengbu comprehensive environment treatment with the World Bank loan” in the website of Bengbu people's government. Various administration agencies of the project have done the project construction information publicity in the construction local government bulletin board respectively. Nobody proposed the objection to the project’s construction until now.

The publicity of the third stage has been carried out from August 8, - August 12, 2007. The city PMO published the publicizing information of the EIA report of the planned project with the World Bank loan on Bengbu Daily, and published the way to get the materials and the consultation telephone. No feedback has been obtained by present.


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Figure 23: Online Public Notification of Project Information


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Public Notification in Guzhen County Public Notification in Huaiyuan

County

Public Notification in Huaishang District Public Notification in Wuhe

County

Figure 24: Project Public Notification in the Project Location


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Figure 25: Public Notification of Project Information in Newspaper


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Table 143: Data sheet of information publicity of Bengbu World Bank Project

Serial

number

Name of Project Project covered content Time of

CompletionTime of

PublicityPlace of publicity

1Tianhe flood prevention

drainage station projectBuild one new Tianhe drainage station

2007.8.8 2007.8.10Bengbu City

government website

2007.8.10 2007.8.12 Bengbu City Library

2

comprehensive

environment

improvement project of

Xijiagou and Baligou

1 ）Xijiagou ---river route scouring 、bank enhancing 、bridge construction

2 ）Baligou---treatment of 3.1km river route, including river route scouring 、bank

protecting、corresponding bridge construction, construction program of Xiangjiao Dam

2007.8.8 2007.8.10Bengbu City

government website


3

Improvement project of

urban(south of Huaihe

River)environmental

infrastructure and facility

1 ）3 drainage pumping stations, 1 promotion pumping station ；2 ） rain and

sewage collecting pipes in economic development district ；3 ） rain and sewage

pipes in high-tech district；4 ） rain and sewage pipes in Longzi Lake district and

Lilou Road

2007.8.8 2007.8.10Bengbu City

government website


4

Longzi Lake project of

flood prevention and

drainage station and

environment

improvement

1 ） Longzi Lake drainage station

2 ）Longzi Lake silt cleaning program, and program of bank improvement

2007.8.8 2007.8.10Bengbu City

government website



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Serial

number


CompletionTime of


5

Huaishang

District （North bank of

Huai River ）project of

flood drainage

prevention &

Infrastructure and

facility improvement

1 ）Wuxiaojie Street of Drainage station and the corresponding engineering ；2)

extension of Xiaobengbu drainage pumping station ；3 ）newly building of

Wangxiao Ditch drainage pumping station and the Yinshuida Ditch; 4) Binhe Road,

North Daqing Road, Wuzhong Road, Houlou Road, East Zhengfu Road; 5) main

sewage collecting pipes project from Wobei city district to Huaishang District

2007.8.8 2007.8.10Bengbu City

government website


6

Project of Guzhen

County comprehensive

environmental

improvement

1 ） transformation and newly building of sewage collecting and drainage pipes; 2)

ditch and pond improvement, slope protection, forestations; 3) main collecting pipes

construction from east bank of Sanba River to sewage treatment factory; slope

protection of the south section of Sanba River, forestations and the river path; 4)

drainage ditch scouring and embanking; flood prevention crest path; 4 new culverts

and sluices building, 5 new pumping stations building and renewal transformation of;

new bridge building and slope protection

2007.8.8 2007.8.10Bengbu City

government website

2007.8.10 2007.8.12Guzhen County

Library

7

Mohekou project of

comprehensive

environment

improvement in Wuhe

county

1 ）Sanpu Lake drainage pumping station and it corresponding engineering ；2 ）water treatment plant and its corresponding pipe network ；3 ）sewage

treatment plant and its corresponding pipe network ；4 ）6 rain water collecting pipe

engineering in the zone

2007.8.8 2007.8.10Bengbu City

government website

2007.8.10 2007.8.12 Wuhe County Library


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Serial

number


CompletionTime of


8

Huaiyuan County ‘s

project of

comprehensive

environment

improvement

1) drainage ditch engineering ；2 ）drainage pipe engineering ；3 ）2 drainage

pumping stations ；4 ） road engineering and the corresponding rain water collecting

pipe engineering in West City District

2007.8.8 2007.8.10Bengbu City

government website

2007.8.10 2007.8.12Huaiyuan County

Library

9EIA overall report （ in

English） summary of 8 sub-projects 2007.8.10 2007.8.12The website of Would

Bank


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10.2 Public participation

This project involves a wide area, the composition of impacted people is complex, the urban project involves mainly the inhabitants in the old city and some villagers in the new planning area; the 3 counties projects are far away from the urban area, most of the impacted people are farmers, so the public negotiation and public participation should be launched according to the different areas and people.

This project adopts various forms such as public negotiation workshop, opinion consultation letters to experts, public remarks and survey. Public participation is divided into 2 phase, the first phase is at the beginning of EA, during the preparation of EA outline from Jan. 2007 to Mar.2007, the second phase is when the draft EIA report is almost finished.

The first public participation is primarily by ways of on-site visits and investigation tables providing. There are 240 public participation investigation tables provided for 8 sub-projects altogether and 220 tables taken back, with the returning ratio of 92%. The regions investigated covered the Bengbu urban district and construction places of the three suburban counties.

In the work of the second public participation, different participating measures were adopted in view of the different project. With EIA work progressing, the main affected crowd and the region were screened, public opinion collecting was carried on, and the project environmental impact symposium and the experts’ opinion collecting work were simultaneously done.

1) In the scope of Bengbu planned area, every construction agency and the EIA agency visited the main affected region together and distributed in the investigation tables for public participation. This time in the main affected regions around the 5 projects in the urban district (city draining water, project Longzi Lake project, Xijiagou project, Huaishang area project and Tianhe drainage pumping station project), 550 investigation tables were provided altogether for public participation, among which 531 tables were taken back with the returning ratio 97%.

2 ） In view of the project category and environment problem of the project planning to use the World Bank loan, the local experienced experts’ opinions and the suggestions were asked. Recommended by the Bengbu department concerned and the construction agency, senior experts in the hydraulic engineering, the municipal administration infrastructure engineering, as well as the environmental protection aspect, were invited. EIA agency designed specially the consultation table to seek opinions from each expert and seven of them


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proposed the valued suggestion to the project construction in the engineering technical and the environmental protection aspect.

3) In view of the characteristics of suburban county projects, the EIA agency together with the construction agency developed symposium with the affected publics on the environmental impact of project construction in Huaiyuan County, Guzhen County as well as Wuhe County Mohekou Town. At the same time the investigation tables were provided for public participation in order to collect the local public's opinions and suggestions widely and to feedback promptly the public’s opinion and worries to the construction agency and each sub-project PMO. This time 300 tables altogether were provided for public participation in the three suburban counties of construction, among which 273 were taken back with the returning-ratio 91%.


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Figure 26: Public participation survey and public workshops

10.2.1 The First Public Participation Survey

220 copies of public participation survey report were distributed in the first public participation survey, 20 copies for Huiyuan County, 50 copies for Guzhen County, 20 copies for Wuhe County and 130 copies for the urban area.

1. 100% of those surveyed supported the construction of this project


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Opinion consultation at place

Public workshop in Huaiyuan County

Public workshop in Mohekou Town

Public workshop in Guzhen County

2. 98% of the survey respondents believed that the water drainage system of Bengbu was not clear enough, and were looking forward to the improvement of the municipal water drainage system.

3. 70% of those surveyed have suffered from flood, and 30% have even suffered from flood frequently.

4. Almost all of the survey respondents believed that it was very necessary to improve the flood control and flood drainage capacity, while 35% considered it necessary.

5. About 80% of the surveyed peoples think that the current drainage system of Bengbu isn’t complete, and it impacts the water quality of urban canals, the pollution of Xijiagou and Baligou is serious, the sanitation condition of the surrounding environment is bad, the garbage at 2 sides of the rivers and odor pollution are evident.

6. 35% of those surveyed believed that traffic would be affected during the construction of the project, 25% believed that there would be noise impact, while 20% believed that they would suffer from the dust and 20% believed that they would be affected by the temporary land occupancy. 70% of those surveyed could accept the impact of the construction, 30% could accept the impact on the premise that measures have been taken to reduce them. It could be concluded that the citizen is willing to accept the construction’s impact on them for the sake of the improvement of their living environment.

7. 100% of the survey respondents believed that the project would play a positive role in many aspects, so the construction of it should be carried out soon.

10.2.2 Investigation of the 2nd public participation

Based on the investigation from July 4 to July 10, 2007, 850 investigation tables were provided for public participation of the urban area and the sub-urban projects, among which 803 tables were taken back with the returning ratio 94%.

10.2.2.1 Main conclusions

Among the surveyors, 100 percent of the surveyors expressed their supports to the construction of Bengbu city project of the facility for flood prevention and drainage pumping and for the comprehensive environment improvement, using the World Bank. They thought that this project is a good project benefiting the people and promoting the urban development. The surveyor thought generally that the project construction can enhance the ability of flood and drainage prevention and safety controlling in the city’s flood


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season, perfect city’s infrastructure, improves the urban combined environment, enhance the residents’ living quality of life, promote the city overall image, enhancement the ability to attract commercial investments, and promote the development of local economy.

Above 90% of the surveyors all said they know about the construction project situation, other people said they know about the project construction of Bengbu city project of the facility for flood prevention and drainage pumping and for the comprehensive environment improvement, using the World Bank, which indicated that the information publicity of the this project achieved remarkable success.

1．For Tianhe flood prevention project: The surveyors generally reflected that drainage condition was serious in the

flood season in the Tianhe area, especially the riverside marsh land. The drainage water can only disperse into the Tianhe, not outside into Huaihe River, which caused the great loss in agricultural production. The construction of large-capacity drainage pumping station is extremely needed;

On the other hand, after the Tianhe river has been recognized as the water source in emergency, above 90% peripheral farmers were worried that it will affect the normal water taking for the Tianhe peripheral agricultural production to take water from the emergency water source in the water lacking period of the drought season.

95% people thought main adverse effects in the construction period were the transportation impeded and the land occupying.

More than 90% of the people thought that the main function of the construction Tianhe pumping station was to enhance the Tianhe drainage pumping ability, to guarantee the safety of the Tianhe peripheral area in flood season, to promote agricultural production.

No surveyors expressed adverse opinions in the location choice of the Tianhe pumping station.

2．For Longzi Lake project All the surveyors expressed their supports to the project construction. But

they hoped that the drainage pumping station project should do rational planning before the construction, consider the expense and production of the project construction, use the fund reasonably, and cut down the expenditures.

75% of the surveyors reflected that the coastal area of the Longzi Lake drains water was impeded frequently in the flood season. They thought it is necessary to carry on scouring, coordinating to drainage pumping station


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construction simultaneously to improve the ability effectively of flood prevention and drainage pumping in this area.

60% of the surveyors thought it was extremely necessary to clear the silt in Longzi Lake, and it can improve the local overall environment to do coordinated coastal slope protection forestations.

The surveyors all agreed that the main adverse effects in the project construction were the construction raising dust, the transportation impeding and the land occupying. It is hoped to decrease the influence by reducing construction time and realizing the construction environmental protection measures.

3．For urban water and drainage pumping project 92% of the surveyors reflected that Bengbu's drainage system was impeded,

and it is needed urgently to consummate the municipal drainage system construction.

90% of the surveyors thought the construction of the draining water pipe network will be advantageous in improving the urban overall water environment.

98% people thought it is extremely helpful to construct rain and sewage pipe network in the Longzi Lake District for the improvement of the Longzi Lake and the peripheral water environment.

4．For Xijiagou Project 92% of the surveyors indicated that they support the construction of the

project. They also thought that the scouring of the ditches and the new building of the drainage pumping station at the same time can effectively enhance the ability of the flood prevention and drainage pumping in local area;

More than half of the surveyors expressed their great unsatisfaction with the peripheral environment of Xijiagou and Baligou. The main problems were the water environmental pollution caused by the sewage discharge, the odor caused by the trash in coast stacks, and the environmental sanitation problems.

The surveyors all agreed that the main adverse effect in the project construction is the transportation and the land occupying. It is hoped to decrease the influence by reducing construction time and realizing the construction environmental protection measures.

5．For Huaishang District Project


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All the surveyors supported the project construction, and they thought it essential to improve the drainage system and enhance the ability of flood prevention and drainage pumping in Huaishang area. To build and consummate the infrastructures such as the road in the north area of Huaihe River main dike, the draining water pipe networks and so on;

92% of the surveyors reflected existing drainage pumping system was impeded in the Huaishang area. They also indicated that through scouring the silt in the ditches and canals, building new (changing, expanding) drainage pumping stations , reinforcing embankment and so on to enhance the ability of flood prevention and drainage pumping in Huaishang area;

The surveyors thought that with the implementation of the project the main order of the impacts on their living were the noise; the raising dust, the temporary land occupying and the transportation, respectively. They hoped that in the construction the construction agency should pay attention to publicing the construction announcement in advance, constructing according to the plans, using environmental protection measures to dustproof, noise reduction, wastewater processing and so on, reducing the temporary land occupying, occupying less farmlands, shortening the project working period, restoring the surface vegetations promptly.

The surveyors suggested that the project should occupy less farmland in caring about the people’s actually difficulty; the project should speed up the progress; in the pumping station construction the river system should be safeguarded to be unimpeded; Inhabitant's relocation and arrangement should be dealt with promptly. The project construction agency should pay attention to the surveyors’ suggestions, and help the project complete smoothly.

6．For Guzhen County Project 84% of the surveyors indicated the understanding of the project construction,

96% indicated their support to the project construction, and nobody expressed the opposition.

63% of the surveyors expressed their unsatisfaction with the existing drainage channel flow capacity of the Guzhen County. They thought that the environmental sanitation condition of the peripheral canal was poor at the central town in Guzhen County.

87% of the surveyors thought that the flooding disaster in Guzhen County was serious. 90% of the surveyors agreed that the flood discharging and drainage pumping ability of the existing drainage ditch pumping station was not able to meet the requirements for flood prevention and draining water pumping.


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The surveyors all agreed that the main adverse effects in the project construction will be the transportation impeding, the land occupying in the construction as well as the noise influence. It is hoped to decrease the influence by formulating the construction plan scientifically, reducing the construction time and realizing the construction environmental protection measures.

7．For Huaiyuan County Project Nearly all the surveyors expressed their supports positively to the project

construction, and hoped that this project implements as soon as possible.

The surveyors generally reflected that the ability of flood prevention and drainage pumping in Huaiyuan County was poor. They also suggested several measures to enhance comprehensively the ability of flood prevention and drainage pumping, such as building new drainage pumping station, doing silt scouring of drainage ditches, reinforcing embankment, etc.

All the surveyors told that because various wastewaters were discharged and the trash was casually stacked, the peripheral environmental sanitation condition was extremely poor the suburban pools and drainage ditches in the Huaiyuan County Town. They indicated that it was extremely necessary to carry on comprehensive improvement, including silt clearing and vegetation restoration;

The surveyor thought generally that the adverse effects during the project construction stage were mainly of temporary land occupying, construction noise and transportation consequences. They hoped to be informed ahead of time before the construction about the construction plan and the adverse effects. It is asked to decrease the influence by shortening the construction time, reducing the land occupancy and realizing the construction environmental protection measures at the construction place.

8．For Wuhe County Mohekou Project 95% of the surveyors indicated that they know the construction content and

the situation of this project; and expressed their supports to the project construction.

Regarding to the construction of the surface water works, the surveyors expressed cared about the supply water quality most, the guarantee of the water volume supply as well as the necessaries of the water supplying pipe network. They also indicated that they wish to use the water from the surface water works.


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77% of the surveyors thought it was urgently needed to improve the water facilities, the sewage facilities, the road facilities in the industry development area;

The surveyors thought that the impacts on their living with the implementation of the project will be the raising dust, the transportation, the noise and the temporary land occupying. It is hoped to decrease the influence by formulating the construction plan scientifically, reducing the construction time and realizing the construction environmental protection measures.

10.2.2.2 Feedback opinions and worries

According to the results of the EIA personnels’ visit on site as well as the survey of public participation to each sub-projects, the EIA agency will feed back the public opinion and worries collected to the departments concerned. The public opinions and the feedback results are shown in Table 144:

Table 144: Sheet of the public opinions and the feedback results

Serial

number

Public opinions and the

problems worried

Department for

feedbacksuggestions for handling

1

During the construction

period, reduce land

occupying area, announce

ahead of time, finish

pollution preventing and

controlling in the

construction period

Designing agencyCarry on multi-plan selection, reduce the

land occupying in the project;

Project

construction

agency

choose the construction unit seriously,

take the plan and the arrangement of

temporary occupying land area in the

construction as the evaluation target

Construction

agency

formulate construction plan, make clear

about the construction arrangement and the

progress; complete the construction

announcement before the construction

admission

EIA agency

consummate the construction contamination

control and the environmental protection

measure

2． Mohekou Town farmers

hope to use water

supplied by the surface

water works

Planning

department

Formulate the corresponding water supply

plan

Wuhe County

urban construction

department

construction of the necessary water supply

pipe network of the Mohekou Town

The association of

pipe network In

connections for Mohekou Town water taking

should be reserved in water supplying main


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Serial

number


problems worried

Department for


Mohekou Garden

zone

pipe

designing agency

Based on the water consumption in the

Mohekou Town, consider a convention on

the scale of the surface water works and

water resource with Huaihongxin River

Xiangjian Lake. Guarantee the water

supplying ability

3

The public in Huaishang

area requested that the

construction agency care

about people’s actually

difficulty and the project

should occupy less

farmland.

Construction unit

Do comparison and selection of multi- plans

on the project contents and the selected

location occupying land area, take less

occupying land area and non occupying of

farmlands as the principle, demonstrate the

project necessity fully

designing

department

carries on the technical proof on the

construction scale and the implementation

plan

to avoid waste in land resources and the

construction funds

Construction unit

use advanced environmental protecting

working practice, enhance job location

management, control the construction

temporary occupying land area strictly

It is suggested that the

river system should be

unimpeded in the

construction of the

pumping station.

the construction

agency,

Designing

department

Formulate detailed construction plans, the

construction technology methods required

are included in the tender content of the

construction

the construction

unit

Complete the adjustment of the temporary

drainage system before the construction,

Jamming of the original drainage channel is

not permitted

The inhabitant's relocation

and placement should be

set in time and well

arranged. Construction unit

The construction unit executes the related

national policies strictly according to the

relocation placement plans and the

compensation standards.

Make sure of the each expense of the

placement and guarantee the prompt

arriving of the compensation fund.

Local government The local government does the surveillance


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Serial

number


problems worried

Department for


and the coordination for the relocation and

placement work.

4

The public at Xijiagou and

Baligou, Guzhen County,

the location of the

Huaiyuan County project,

requested to strengthen

the management after

the completion of the silt-

scouring of the drainage

ditches and the ponds, in

order to avoid the

pollution of the trashes

and the wastewater, and

to protect the social

environment benefit of

this construction project.

the management

association of the

High- and new-

tech development

zone, each

construction

agency in the

Guzhen County,

and the Huaiyuan

County, as well as

the local urban

management

departments

1. Carry on the necessary construction of

the sewage truncation pipe network at the

same time of silt clearing of the ditches and

the ponds, control the sewage injection

strictly.

2. Enhance environmental sanitation

management, forbid piling trashes near the

ditches and the ponds

3. Construct necessary facility for trash

receiving and transportation, guarantee

fixed point depositing of living trashes, do

centralized collection and shipment.

10.2.3 Summary of the conditions of symposiums in the three counties

10.2.3.1 Huaiyuan County

The conference of “Huaiyuan County project of flood prevention and ecology treatment” was held at 9:00~10:30 in the morning on July 9, 2007 in the conference room of Huaiyuan County Development and Planning Commission. The conference was managed by Qin, the Director of the Development and Planning Commission. The representatives who attended the conference were 19 people in total, from the various areas of the construction located, mainly were the inhabitants in Chengguan Town community, farmers from Lizuizi village, Xinzhuangzi village, Meicheng village, Longtou Village, the inhabitants at the Bianhe Road, the staffs in the Chinese Medicine Hospital.

In the conference the project origin and its content were introduced first by the various projects construction units. Then the EIA agency analyzed and introduced the main environmental effects and the environmental protecting mitigation measures in the project construction period and the operation period. Finally the public representatives, the construction agency and the EIA agency made discussion and the opinion requiring on the main subjects. The public in the


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construction location expressed their opinions and the ideas. The main subject and the public opinion of the conference are summarized in Table 145.

Table 145: Sheet of the results summary of the symposium on the environmental impact of the Huaiyuan Project

Main subjects Main conclusions Resolving proposals

What is the most

unsatisfied aspect in the

present environment

situation in the region

involved in the project?

1) The most unsatisfied aspect in the

present environment situation for the

inhabitants is the poor ability of the city

drainage pumping. For example, the Lizuizi

drainage system was ponding so seriously

in the rainy season that it affected the

ordinary living.

2) It is hoped to consummate the drainage

system and enhance flow capacity of the

draining water pumping station. The

pumping station should be designed in two

ways as the self-pumping and the motor-

pumping.

The opinions were feedbacked to

the construction agency as well

as the designing agency, and

were considered in the design

proposals.

2．What are the worries of

the public about the

adverse environmental

effects as well as influences

on their own lives brought

in the construction stage

and the operation stage of

the project?

1) The inhabitants thought that the

transportation and the raising dust were the

main problems worried about, especially the

problem of transportation. The reason is that

the pipe network consummation project was

mainly in the Chengguan Town where it was

very easy to have the traffic jam with its

narrow streets.

2) At the same time, the sandy soil was also

very easy to influence the inhabitants living

near both sides of the road in its

transportation process. Therefore it was

suggested that the construction plan should

be well formulated in the construction

period.

3) Under the coordination of the

transportation management department,

complete the work of traffic control and the

optimization of the transit route.

1) Feedback the public’s

opinions to the construction

agency and request them check

strictly in the construction tender

process and formulate the

construction plan scientifically.

2) In the EIA report, do

supplement and consummate

measures of the corresponding

construction management and

pollution prevention and

controlling in order to minimize

the adverse construction

consequences.

3. What are the public’s

opinions on the

environmental impact

1) The inhabitant believed that this project is

a project for the people. They can accept

various unavoided environmental effects in

1) Integrate completely the

environmental protection


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mitigation measures in the

project construction stage

and the operation stage?

the construction period and hoped this

project to implement as soon as possible.

2) Regarding to the environmental mitigation

measures in the construction period and the

operation period, the inhabitant

representatives agreed with the measures

proposed by the EIA agency. But it should

be carried out implement strictly especially

by the construction agency, the supervising

and managing agency and the inspector

agency according to the environment

mitigation measures EIA agency proposed.

measures proposed in EIA in the

environment management plan,

and request the project agency

to implement the investment fun

for the environmental protection

measures.

2) In the selection of the

construction agency, it is

suggested to take the realization

ability of environmental

protection measures and the

safeguard of the technical fund

as the key inspecting targets.

4. What are public’s

suggestions on the

environmental sanitation

maintenance and

management after the

project’s completion,

especially after silt clearing

of the ditches and the

ponds?

1 ） Regarding to the hygienic sanitation

maintenance and management after the silt

clearing of the ditches and the ponds, the

public proposed to manage it first by the

special person. At the same time to

strengthen the guidance of the

environmental protection and raise the

public understanding in environmental

sanitation.

2) Establish trash stacks and the collection

points at the inhabitant quarters around the

drainage flow ditches and the ponds. The

environmental sanitation department cleans

up and takes away at scheduled time.

1) Feedback the public’s

opinions to the construction

agency and the project local


department

2) Urge the department

concerned to consummate the

construction of trash stacks and

collection points in the

construction place. Collect and

send out in time the life trashes

in that area of the ponds and

drainage ditches, in order to

avoid pollution the second time.

10.2.3.2 Guzhen County

The conference of “Guzhen County project of flood prevention and ecology treatment” was held at 3:00~4:30 in the afternoon on July 9, 2007 in the conference room of the Guzhen County Development and Planning Commission. The conference was managed by Wang, the Director of the Development and Planning Commission. The representatives who attended the conference were 26 people in total from the various areas of the construction located, mainly were the farmers from the nearby villages at Dalou Community at Guzhen such as Xiaolou Village, Dalou Village, Laojie, Qili Village, Nanchenwei Village, Qi Village, etc. as


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well as the concerned personnel in the Guzhen Construction Bureau and the Water Conservancy Bureau.

In the conference the project origin and its content were introduced first by the various projects construction units. Then the EIA agency analyzed and introduced the main environmental effects and the environmental protecting mitigation measures in the project construction period and the operation period. Finally the public representatives, the construction agency and the EIA agency made discussion and the opinion requiring on the main subjects. The public in the construction location expressed their opinions and the ideas. The main subject and the public opinion of the conference are summarized in Table 146.

Table 146: Sheet of the results summary of the conference on the environmental impact of the Guzhen County Project


1. For the public, what is

the most unsatisfied aspect

in the present environment

situation in the region

involved in the project?

1) The most unsatisfied aspect in the

present environment situation for the

inhabitants is the quite poor ability of the

city drainage pumping.

2) The city sewage collecting system was

imperfect and in the old city area the

hygienic condition near the drain was bad.

3) It is hoped to consummate the drainage

system. Clear silt in the city drains and

ponds as soon as possible to enhance

water logging treatment.

The opinions were feedbacked to

the construction agency as well

as the designing agency.

2．The public asked

problems about worries of

the adverse environmental

effects as well as influences

on their own lives produced

in the project construction

stage and the operation

stage.


transportation, the raising dust, and the

environment sanitary, etc. were the main

problems worried about, in particular, the

problem of transportation. Because in some

suburb villages transportation paths were

not very good and the villagers had difficulty

in transportation. The villagers worried

about the temporary occupying of the road

which will intensify this difficulty once the

project constructs creates.

2) It is suggested to formulate the

construction plan in the construction period.

The temporary access road should be

constructed when constructing nearby the

1) Feedback the public’s opinions

to the construction agency and

request them check strictly in the

construction tender process and

formulate the construction plan

scientifically. In the construction

proposal, consider reducing

temporary land occupying and

stipulate the transit route for the

construction, complete the work

of supervising and managing.

2) In the EIA report, do

supplement and consummate

measures of the corresponding


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villagers’ channel in the suburb village. The

path in the village cannot be damaged. Do

the traffic control and the optimization

transit route.

construction management and

pollution prevention and

controlling in order to minimize

the adverse construction

consequences.

3. Ask the public’s opinions

on the environmental

impact mitigation measures

in the project construction

stage and the operation

stage.

1) The inhabitant believed that this project

is a project for the people. They can accept

various unavoided environmental effects in

the construction period and hoped this

project to implement as soon as possible.

2) Regarding to the environmental

mitigation measures in the construction

period and the operation period, the

inhabitant representatives agreed with the

measures proposed by the EIA agency. But

it should be carried out implement strictly

especially by the construction agency, the

supervising and managing agency and the

inspector agency according to the

environment mitigation measures EIA

agency proposed.


environmental protection

measures proposed in EIA in the

environment management plan,

and request the project agency to

implement the investment fun for

the environmental protection

measures.

2) In the selection of the

construction agency, it is

suggested to take the realization

ability of environmental protection

measures and the safeguard of

the technical fund as the key

inspecting targets.

4. What are public’s

suggestions on the


maintenance and

management after the

project’s completion,

especially after silt clearing

of the ditches and the

ponds?

1 ） Regarding to the hygienic sanitation

maintenance and management after the silt

clearing of the ditches and the ponds, the

public proposed to strengthen the

management first. At the same time the unit

concerned should provide the convenient

condition for the neighbor inhabitant's trash

collection so as to protect the project

achievement in clearing silt.

2) The public also proposed after

completion of this project, the power supply

department must guarantee each drainage

station to drain water normally. Let the

common people really see their actual

benefit the project taken.

1) Feedback the public’s opinions

to the construction agency and

the project local environmental

sanitation department and

electricity supply department.

2) Urge the department

concerned to consummate the

construction of trash stacks and

collection points in the

construction place. Collect and

send out in time the life trashes in

that area of the ponds and

drainage ditches, in order to avoid

pollution the second time.

Ask the construction agency and

the water conservancy


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department to enhance the

operational management of the

pumping stations and guarantee

the normal operation of the

drainage pumping stations.

10.2.3.3 Mohekou Town of Wuhe County

The symposium of “Wuhe County project of flood prevention and ecology treatment” was held at 9:30 ~ 11:00 on the morning of July 6, 2007 at the conference room of the Mohekou Industry Garden Management Commission. The representatives who attended the conference were 24 people in total from the villages of the construction located, from Mohekou Village, Tuanjie Village, Sanpu Village, Tangchen Village, Lijiawa Village, Yuanji Village, respectively.

In the conference the project origin and its content were introduced first by the projects construction agencies. Then the EIA agency introduced the environmental impact production stages (waste water, waste gas, solid waste, and noise), the pollutant emissions analysis, and the planned environmental protection measures and so on in the project construction period and the operation period, enabling the public to have a more comprehensive understanding to the project’s environmental consequences. Finally the public representatives, the construction agency and the EIA agency made discussion and the opinion requiring on the main subjects. The public in the construction location expressed their opinions and the ideas. The main subject and the public opinion of the conference are summarized in Table 147.

Table 147: Sheet of the results summary of the conference on the environmental impact of the Mohekou Project in the Wuhe County


1. What are the

suggestions and

opinions of the public

in the project

construction?

1) The garden area is in the marsh

land, so it should be solved for the

problem of the draining water

peripheral land which has not taken

over for use, to avoid the

agricultural loss impeded drains in

the flood season.

2) The location selection of the

sewage factory should be

reasonable to, guarantee the

.1) The opinions were feedbacked to

the construction agency as well as

the designing agency. In the design

proposal and the draining water plan,

to consider the marsh land draining

water problem in garden area, as well

as moving direction of the water

works feedwater line and its

construction plan. To provide the tap

water with safety control for the local


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inhabited area not to be affected by

the odor.

3) The public reflected that the

source of drinking water for

peripheral inhabitant in the place of

construction is the ground water at

present, in which the iron content is

high concerning the water quality.

After the surface water works

complete, the inhabitants are

willing to pay the suitable fee to use

the tap water.

4) The conference participants

thought that the project

construction was extremely

important. They requested to

implement the project as soon as

possible and guarantee the project

quality and the completion time, in

order to benefit the local people

earlier.

common people eat the greatest

possibility.

2) The odor problem of the

sewage factory has been reflected to

the designing department and the

construction unit., Consider

thoroughly in reducing the odor

influence in the factory site selection

and the factory layout as well as the

sludge processing. Enhance the

protective measures.

3) In the EIA report it was

proposed to the health protection

distance request and reasonable

suggestion for the layout of the factory

district.

2．The public asked

problems about worries

of the adverse

environmental effects

as well as influences

on their own lives

produced in the

construction stage and

the operation stage of

the project.

1) The construction sewage

processing should be paid attention

to during the project construction

period, in order to avoid the

polluting the peripheral water

environment.


transportation and the raising dust

and so on were the main problems

they worried about. Especially

during the road building at the

Mohekou Town, the sand and

crushed stone materials and so on

needed for the road construction

should be laid aside appropriately

to reduce the road occupying and

maintain the road cleanness. The

1) Feedback the public’s opinions to

the construction agency and request

them check strictly in the construction

tender process and formulate the

construction plan scientifically. In the

construction proposal, should

consider reducing temporary land

occupying and stipulate the transit

route for the construction, complete

the work of supervising and

managing.

2) In the EIA report, do supplement

and consummate measures of the

corresponding construction

management in order to minimize the

adverse construction consequences.


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construction time should avoid

inhabitant's relaxation time. Do the

construction in the civilized way

and formulate the construction plan

to reduce the effects on the

inhabitants’ transportation and

lives.

3) After the implementation of

the project, it is hoped to do

effective collection and processing

for the existing factory production

waste water and the sewage in the

town and to integrate completely

the sewage treatment plant to be

constructed.

3. Ask the public’s

opinions on the

environmental impact

mitigation measures in

the project

construction.

1) The inhabitant believed that this

project is a project for the people.

They can accept various unavoided

environmental effects in the

construction period and hoped this

project to implement as soon as

possible. But the environmental

mitigation measures should be

implemented actually.


environmental protection measures

proposed in EIA in the environment

management plan, and request the

project agency to implement the

environmental protection measures

and the supervising and managing

system.

2) It should be enhanced in the scene

management in the construction

period and increased in surveillance

and inspection strength.

10.2.4 The experts’ consultation opinions

In view of “the Project of City flood prevention and the ecological environment treatment in Bengbu City”, to complete the project EIA work better, the EIA consulted the seven concerning experts coming from the Bengbu water conservancy bureau, Huaihe River Hydro-Conservancy Committee, the Bengbu Water Conservation Survey Design Institute, the Bengbu Plan and Design Institute, the Huaihe River Water Resources Conservation Research Institute, the Bengbu Municipal Engineering Administrative Office and the Bengbu Environmental Monitoring Station in the Bengbu City in July, 2007. The experts


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proposed the precious suggestion on the following questions. The content and the expert advice of the questionnaire were summarized in Table 148.

Table 148: List of the summary of experts’ opinions on Bengbu World Bank loan project

Serial numb

er

The questionnaire

Main conclusions

1 What’s your

attitude to the

construction of

this project

seeking for World

bank loan for the

city flood

prevention and

ecological

treatment in

Bengbu City?

Expert in various fields expressed their vigorous supports to the construction

of the World Bank project.

1) Bengbu is a city with relatively lag infrastructure and relatively serious

pollution. The local flood prevention facility was weak in this area, which is to the

north of Huaihe River, to the east of Longzi Lake and to the west of Baligou. It has

been in the status of natural inundation for a long time and there existed certain

hidden danger of flood prevention. On the other hand, the Baligou, the Xijiagou

and the Longzi Lake have not been treated comprehensively and the water

environmental pollution problem is quite serious. Therefore it is extremely

essential to apply for the World Bank loan to carry on the construction of the city

flood prevention and the drainage pumping facility and the environment synthesis

improvement.

2) Bengbu's once application for the world bank loan to use in the Huaihe River

basin water pollution treatment, has obtained very good social and environmental

benefit. This time the application for the world bank loan project will play a vital

role in realizing the sustainable development of the economy and the society so

as to raise the city infrastructure level and optimize the living environment. It is

believed that with the great effort of municipal government and department

concerned, the application for the world bank loan will obtain a complete success.

2 What’s your

worry and

suggestion on

the construction

of the Mohekou

Industry Garden?

1) There are water drainage problems such as low topography of garden area and

submergence risks in the flood season. It is suggested to carry on plan designing

and the implementation first in the Mohekou garden area of drainage elimination.

2) There are pollution discharge problems in the enterprises. The pretreatment

does not reach the designed standards and is discharged outside along with rain

water in the flood season. It is easy to form the pollution risk to Huaihe River. It

should be guaranteed that the enterprise environmental protection facility, the

sewage treatment facility in the garden area and the enterprise construction are in

operation simultaneously. At the same time, forbid the heavy pollution enterprise

entering the garden area.

3) As a fine chemical garden area, the ingredients of the sewage and wastewater

in the enterprise are complex and heavily polluted. It should be carried on the

technical proof to the treating process in the wastewater treatment plant and adopt


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suitable limiting condition for the chemical enterprises with characteristic

pollutants, therefore to guarantee the enterprise wastewater reach the

pretreatment standards before being discharged into the wastewater treatment

plant. It should be discussed about the technology proposals on the pollution

outlet establishment of the wastewater treatment plant and considered about the

sludge handling in normal operation of the sewage plan at the same time.

4) There are domestic water problems. As the ground water quality is

unsatisfactory and the surface water resources are scarce, there are problems in

the water quality and volume of water supply. The water resources proof and

comparison and selection of the water supply plan to the surface water works

should be carried out. Carry on the full proof on the project technology. The

domestic water may consider the proposal using in-depth ground water.

3 To display the

environment

benefit of the city

rain and sewage

pipe networks of

the basic

construction,

what problem do

you think need

be paid attention

to? What’s your

suggestion?

1) Plan reasonably the rain and sewage pipe networks. It should be considered for

the long-term development requirement for sewage pipe network and designed

carefully. Control the construction of the storm sewer system strictly and makes

the connection well as few as possible. Construction the waste blocks facility at

the exit to cease the organic waste matters to enter the river course which causes

second pollution.

2) In the new city area, the rain and the sewage separate system pipe network

should be built. In the old city area where there is unable to practice the separate

system, the multiple should be reasonably determined in damming the current

during the pipe network construction of combined system.

3) Guarantee the pipe maintenance quality after raining. Complete the lucid and

coherent work before the flood season. The sewage pipe network construction

should be earlier than the sewage treatment plant construction. The covering

scope and the volume of contaminated wastewater of the wastewater gathering

system should satisfy the wastewater treatment scale requirements, avoiding

unsaturated inlet water in the wastewater plant.

4) Establish and perfect the enterprise water draining and the pollution discharge

permit system. Complete the later period track supervising and managing

normalizing. Guarantee the inlet water of the wastewater plant to meet water

quality standards and in good operation.

4 Which aspects

do you think that

main

environment

benefits are

shown in for the

Benefits:

1) enhance the ability of accepting the rain and sewage in the ditches, the ponds

and the rivers and improve the self-cleaning ability; 2) improve water quality of the

ditches, the ponds and the rivers as well as the peripheral soil quality, therefore

improve peripheral living environment; 3) increase the ability of draining and

storing floodwater in the ditches, the ponds


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silt clearing

projects of

ditches and

ponds in the city

area and three

counties? What

problems do the

silt clearing

projects have?

Do you have any

suggestions?

Problems existed:

1) handling of clearing silt which may cause second pollution; 2) certain pollution

produced in the construction process; 3) investment of a large amount

Suggestions:

1) There are problems in Bengbu and three counties projects, such as the big

resilience of the ditches and the ponds silt clearing, the insufficient investment.

Therefore it should be done with key prominent, for example, south area of Longzi

Lake needs immediate silt clearing. It is suggested to implement by stages,

complete silts clearing at one time.

2) It is suggested to transform the earth channels into the stone channels to retain

the existing marsh lands as far as possible, and do overall planning and

comprehensive treatment. To marsh lands in the city which is the place originally

for flood stagnating and gathering, should be retained as far as possible to avoid

filling in the pond to make the lands.

3) The silt clearing project should be unified with the environment improvement of

the water body shore and the pollution source treatment.

4) The silts cleared should be deeply buried or covered with the earth as well as

used in the forestations or the scenery making.

5) The handling plan for the cleared silts should be compared and selected with

the multi-plans, for example to fill in buries, the compost, burning down and so on,

to avoid producing second pollution.

5 What do you

think of the main

problems there

are in the silt

clearing project

of Longzi Lake?

1) Longzi Lake area is very big. Therefore the key scope of silt clearing should be

determined first. Then carry on surveys on silt thickness in the silt clearing scope.

Decide the silt depth of clearing on the basis of the analysis of pollutant content

distributions in the silt.

2) The silt clear will have certain influence on the water quality, the water ecology,

the aquaculture, the landscape. Reduce destruction of the original ecology as far

as possible. Determine the silt clearing depth after the scientific analysis. It is

suggested that the silt clearing cannot penetrate the clay layer and t the silt

clearing depth should not more than 50cm.

3) Choose the appropriate way to clear silts. Avoid the deposit pollutant in the

bottom putty releasing once more into the water body and causing the new

pollution during the silt clearing process because of the bottom putty agitation.

Consider the efficiency of the silt clearing at the same time. It is suggested to use

the dredge boat of environment protecting twist-attract type. If the silt depth is

insufficient, it is suggested to pump off the water and use the sludge pump or the


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carry-scraper for the construction work regarding to the soil texture situation.

4) For the improvement of the Longzi Lake shore, it is primarily suggested to

excavate the earth or stone, therefore to increase the storage capacity of the flood

prevention, storage and regulating and to enhance the flood control standard of

the Longzi Lake.

5) The cleared silts should be handled reasonably. It is suggested to use the soil

body in the cleared silts to increase the ground elevation of peripheral Longzi Lake

to achieve the effect of flood prevention and waterlogged elimination. But the

stack of the cleared silt must not occupy the storage capacity for flood preventing

and regulating.

6) The handling of massive cleared silts should choose the appropriate season, to

avoid doing construction in the spring or summer and reduce the influence of odor.

It is suggested to choose the suitable place to construct putty field for silt handling.

7) After clearing the silts, enhance the operation management and the

maintenance of the Longzi Lake. The sewage dispersing is forbidden along the

lake. It is also suggested to consider breeding some aquatic plants to absorb

nutritive elements such as nitrogen, phosphorus and so on while richen the

landscape. It is proposed to do massive forestations of planting trees and grasses

along the coast to reduce the soil erosion and the silt situation in the lake body.

6 What main

problems do you

think existed in

the construction

of drainage

pumping

stations? Which

opinions Do you

have any

opinions or

suggestion?

Existed problems:

1) In the old city area the equipment in the drainage pumping stations are

obsolete, while in the new city area the drainage pumping stations need to be

constructed urgently; 2) The draining ability of the planned pumping station is not

able to meet the design requirements; 3) After the pumping station completes, the

maintenance management mechanism is not perfect and the technical ability is

insufficient.

Opinions and suggestions

1) Location selection of the pumping stations should consider the conditions

such as advantageous drainage collection, good geological condition, high

safeguarded electricity conditions as well as transportation convenience.

Simultaneously far away from the crowd compact district.

2) Enhance the pumping station forestations construction. Use the pumps of

advanced designing, the high effective and energy saving, the safe and reliable

type. Increase the sound absorption function of the pumping station. Complete the

pollution preventing and controlling measure of the odor and the noise, avoiding

disturbing the people.

3) Prudently choose the waste blocking facility and the waste blocking plan, Pay

enough attention to the anticorrosion of the pumping station equipments.


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4) The construction of drainage pumping stations is supposed to pay great

attention to the display of combined benefits of the hydraulic engineering, which is

to combine basin drains and the regional drains, and the realize the combination

of the drainage pumping function and the environment benefit.

5) Strengthen the operation management of the pumping station. Consummate

the management facility and the management structure. Strengthen the routine

maintenance of the equipment. Provide the corresponding technical force. Realize

good operation of the pumping station.

7 Question 7, What are effects on original Fengxi pumping station, Fengxixu, the Tianheshengchan dike, Tianhefengbi dike and the flood discharging areas after completing the Tianhe drainage Pumping station?Are there any worries or suggestions?

Influences:1) The construction the Tianhe drainage pumping station can expand drainage flux. During the water logging time can reduce the Tianhe water level effectively. It is advantageous for Fengxixu drainage pumping station to eliminate water logging and enhance the flood controlling standard of Fengxixu; 2) In the flood season, the function of the opening of drainage pumping station can be ignored in increasing the Huaihe River main current capacity. It will not result in the increase of the water level of the Huaihe River, therefore it almost will not affect to the Tianheshengchan dike, the Tianhefengbi dike.

Worries and suggestions:1) When the drainage stations begin simultaneously, the influence on the peripheral water level should be considered.2) The operating costs have difficulties in the allocation. It is supposed to be considered by the province government.3) For the Tianhe has been taken as the Bengbu spare water source, reducing the Tianhe water level will have influence on the water-holding capacity.

8What influence

do you think the

project

construction will

have on Huaihe

River? Do you

have any

suggestions?

Positive influence:

1) There are many advantages in the wide range society public welfare. On the

one hand. It is advantageous to protect the land and the inhabitant safety; on the

other hand it is also advantageous in removing the drainage from Huaihe River

ahead of time.

2) It has the improvement and the repairing function to the regional partial

ecology. It can improve the environment along the Huaihe River. The construction

of the wastewater treatment plant may reduce the pollution degree in Bengbu

pollutants discharging to Huaihe River.

3) It has the vital role in the guarantee of water quality water and water volume of

Bengbu domestic water and the process water.

Negative influence: 1) It will produce short disadvantageous environmental effects such as sewage

and wastewater and so on. in the construction period

2) It will have adverse effects on the water quality in Huaihe River if sewage

discharges in the enterprise along Huai Garden Area is not controlled strictly.

3) The cleared silt from the ditches and ponds will produce the negative influence


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on the surrounding environment with inappropriate handling ;

4) After completion of drainage pumping stations construction in the urban district

and three counties, the operation of single pumping station will not have great

influence on the main current of Huaihe River. But if the stations simultaneously

open in the flood season, it can slightly increase the Huaihe River peak discharge,

which possibly will be able to have the influence on the overall Huaihe River flood

prevention and create the flood disaster to shift.

Suggestions: 1) Carry out the environmental protection measures strictly “three at the same

time” way, strengthen the pollution outlet management, cease pollution event to

occur in the Huaihe River.

2) Strengthen and carry out each environmental protection measure in the

construction period. reduce the environment adverse effects.

3) Control the construction quality strictly. Cease the hidden danger of the flood

prevention

4) Implement this project as soon as possible. Carry on the project with the

principle of the urban district first, then three counties, the main current first, then

the branches, paying equal attention to pipe network transformation in the old city

area and pipe network construction in the new town area.

5) Coordinate various departments and reasonably plan the working procedure

and the scale of the city draining water pipe network and the drainage pumping

station construction.

Once there is a possibility to have influence on the bank of Huaihe River,

appraisal must be carried on for the circle dike flood prevention.

The EIA agency carried on public participation surveys at various stages in the EIA of the Bengbu World Bank Loan Project. The main conclusion and the achievement are shown in Table 149.

Table 149: Summary of the public participation survey in the EIA of the Bengbu World Bank Loan Project

NATURE OF

PUBLIC PARTICIPATION

TIME PLACE WAY

ORGANIZATION UNIT

PARTICIPANT MAIN CONCLUSIONS

Sub-project 1 Tianhe drainage prevention project

1st public

participant

2007．1

Yuhui

District、Chang

qinXiang,

Qinji Town

Visit on site

and

distribute

the survey

EIA agency,

Bengbu

water

Yuhui

District

The public

investigated

support the

construction


August 2007

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NATURE OF


TIME PLACE WAY

ORGANIZATION UNIT


table for

public

participatio

n

convservanc

y Bureau

of the project

2nd public

participant

2007．7

Qinji Town

Fengcheng

village,

Qiancheng

Village

Huacheng

village

Visit on site

and

distribute

the survey

table for

public

participatio

n

Qinji

Town

1. The

public

investiga

ted

support

the

construction

of the project.

The surveyors

think that

drainage

condition was

serious. The

construction

of large-scale

drainage

pumping

station is

extremely

needed;

2. The

public

worried

about

water

taking

from the

Tianhe will

have

influence on

agricultural

production

water in the

drought


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NATURE OF


TIME PLACE WAY

ORGANIZATION UNIT


season.

3. The

main

adverse

effects in

the

construction

period were

the

transportation

and the land

occupying.

2007．7

Send out

requiring

letters

Asking for

experts

suggestion

s

City PMO Wang

zhenlong,

Tian

zhongzhi

Yang

linhai,

Liu Chao,

Huang

Kang,

Jin

Yanchun

Zhao

Yuangan

g

1. The

experts

strongly

support

the

project

construction.

2. The

pumping

station

should

be far

away from the

crowd

compact

district and

food for the

drainage

gathering.

Complete the

pollution

prevention

and treatment

measures of

the odor and

the noise.


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3. Prudentl

y choose

the

waste

blocking

facility and the

waste

blocking plan

4. The

Tianhe

pumping

station

will

decrease the

water level of

the Tianhe

River. The

function on

the main

current of

Huaihe River

can be

ignored when

it opens in the

flood season.

5. But if the

stations along

the Tianhe

River

simultaneousl

y open, the

influence on

the water

level should

be

considered.


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ATURE OF

PUBLIC PARTICIPATIO

N

TIME PLACE WAY

ORGANIZATION UNIT

PARTICIPANT MAIN CONCLUSION

S

Sub – project 2 Longzi Lake Project

1st public

participant

2007．1

Villages along Longzi lake

Visit on

site and

distribute

the

survey

table for

public

participati

on

EIA

Agency,

Economic

developme

nt district

villages

along

the

Longzi

Lake

All the surveyors

supports the

project , support

the silt clearing in

Longzi Lake and

the drainage

pumping station

construction

2nd public

participant

2007．7

Villages along Longzi lake

（ShannanVillage

、Qiuqiao

Village、Jiguo

Village、Junli

Village、Dalu

Village, etc.）

Visit on

site and

distribute

the survey

table for

public

participati

on

villages

along

the

Longzi

Lake

1. All the

surveyors

support the

project. 60%

of

the surveyors

thought it was

extremely

necessary to

clear the silt in

Longzi Lake

2. The main

adverse

effects in the

project

construction were

the construction

raising dust, the

transportation

impeding and the

land occupying.

The public hoped

to decrease the

influence by

reducing

construction time

and realizing the


August 2007

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ATURE OF

PUBLIC PARTICIPATIO

N

TIME PLACE WAY

ORGANIZATION UNIT


S

construction

environmental

protection

measures.

2007．7

Send out

requiring letters

Asking for

experts

suggestio

ns

City PMO Wang

zhenlon

g,

Tian

zhongzhi

Yang

linhai,

Liu

Chao,

Huang

kang,

Jin

Yanchun

Zhao

Yuangan

g

1. The experts

strongly

support the

project

construction

2. The

investment

is large. It is

suggested

to

implement in

stages, and do it

once.

3. Decide the

silt depth of

clearing

according to

the monitoring

result. The silt

clearing depth

should not more

than 50cm. Select

the appropriate

silt clearing

measure

according to the

soil nature.

4. The cleared

silts should

be handled

reasonably.

It is suggested to

use the soil body


August 2007

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ATURE OF

PUBLIC PARTICIPATIO

N

TIME PLACE WAY

ORGANIZATION UNIT


S

to increase the

ground elevation

of peripheral

Longzi Lake.

5. The

handling of

cleared silts

should

choose the

appropriate

season and avoid

construction the

spring or summer

to reduce the

influence of odor.

6. Enhance the

operation

managemen

t and the

wastewater

discharge is

forbidden along

the lake.

ATURE OF


TIME PLACE WAY

ORGANIZATION UNIT PARTICIPANT MAIN CONCLUSIONS

Sub – project 3 Urban Project

1st public

participant

2007．1

Old city

area

High and

new tech.

area

Visit on

site and

distribute

the survey

table for

public

participatio

n

EIA agency,

Bengbu

construction

commission

,

High and

new tech.

area ,

Old city

area,

High and

new tech.

area

The surveyors

generally support

the urban water

and drainage

pumping project,

support the

municipal

drainage system

construction


August 2007

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ATURE OF


TIME PLACE WAY


Economic

developme

nt area,

2nd public

participant

2007．7

Old city

area,

Economic

developme

nt area,

High and

new tech.

area

Visit on

site and

distribute

the survey

table for

public

participatio

n

Old city

area,

Economic

developme

nt area,

High and

new tech.

area

1. The

surveyors

support the

project. They think

it is needed

urgently to

consummate the

municipal

drainage system

construction

2. The public

think to

construct

rain and sewage

pipe network in

the Longzi Lake

District is good for

the improvement

of the Longzi Lake

water

environment.

2007．7

Send out

requiring

letters

Asking for

experts

suggestion

s

City PMO Wang

zhenlong,

Tian

zhongzhi

Yang linhai,

Liu Chao,

Huang

kang,

Jin

Yanchun

Zhao

Yuangang

1. The experts

strongly

support

the project

construction

2. Plan

reasonably

the rain and

sewage pipe

networks. In the

new city area, the

rain and the

sewage should

flow separately.

Guarantee the

pipe maintenance

quality after


August 2007

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ATURE OF


TIME PLACE WAY


raining. The

sewage pipe

network

construction

should be earlier

than the sewage

treatment plant

construction.

3. Pay equal

attention to

the

network rebuilding

in the old city area

and pipe network

constructing in the

new city area.

NATURE OF


TIME PLACE WAY

ORGANIZATION UNIT


Sub – project 4 Xijiagou Project

1st public

participant2007．1

High and

new tech.

area ,

Visit on site

and

distribute

the survey

table for

public

participatio

n

EIA

agency,

High and

new tech.

area

High and

new tech.

area

The public

surveyors

generally support

the construction

of the

construction of

Xijiagou, Baligou

and the

embankment.

2nd public

participant

2007．7 High and

new tech.

area ,

Visit on site

and

distribute

the survey

table for

public

participatio

High and

new tech.

area

1. The public

surveyors

generally support

the project.

2 The public is

very unsatisfied

with the


August 2007

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ORGANIZATION UNIT


n

peripheral

environment of

Xijiagou and

Baligou.

3 the main effect

in the

construction is

the transportation

and the land

occupying.

2007．7

Send out

requiring

letters

Asking for

experts

suggestion

s

City PMO Wang

zhenlong,

Tian

zhongzhi

Yang

linhai,

Liu Chao,

Huang

kang,

Jin

Yanchun

Zhao

Yuangang

1. The experts strongly support

the project construction2. The sludge

should be

treated

reasonably with

filling in buries or

in forestation to

make scenery.

NATURE OF


TIME PLACE WAY

ORGANIZATION UNIT


Sub – project 5 Huaishang Project

1st public

participant

2007．1

Huaishang

area

Xiaobengb

u Village,

Shuangdun

Village,

Wuan

Village,

Jintai

village,

Visit on site

and

distribute

the survey

table for

public

participatio

n

EIA agency

Huaishang

District

government

PMO

Huaishang

District

The public

surveyed support

the project

construction.


August 2007

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Chentai

Village

2nd public

participant

2007．7

Huaishang

area

Xiaobengb

u Village,

Shuangdun

Village,

Wuan

Village,

Jintai

village,

Chentai

Village

Visit on site

and

distribute

the survey

table for

public

participatio

n

Huaishang

area

Xiaobengb

u Village,

Shuangdun

Village,

Wuan

Village,

Jintai

village,

Chentai

Village

1. The public

surveyed

support

the project

construction. and

think it is essential

to build and

consummate the

infrastructures

2. The public

proposed that

the

project should

care about the

people’s actually

difficulty and

occupy less

farmland

3. Impacts of

the

construction

were the noise; the

raising dust, the

temporary land

occupying and the

transportation,

respectively.

2007．7

Send out

requiring

letters

Asking for

experts

suggestion

s

City PMO Wang

zhenlong,

Tian

zhongzhi

Yang

linhai,

Liu Chao,

Huang

kang,

1. The experts strongly support

the project construction2. The silt

cleared

should be

handled

reasonably.

3. The pumping


August 2007

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TIME PLACE WAY

ORGANIZATION UNIT


Jin

Yanchun

Zhao

Yuangang

station

should

complete the

prevention and

treatment

measures of the

odor and the

noise.

4. Implement

the

environmental

protection

measures of “three

at the same time”

5. The

evaluation of

the flood

prevention of the

circle bank must

be done.

NATURE OF


TIME PLACE WAY

ORGANIZATION UNIT


Sub – project6 Guzhen Project

1st public

participant

2007．4

Guzhen

Chengguan

Village

Visit on site

and

distribute

the survey

table for

public

participatio

n

EIA Agency

Guzhen

county

PMO

Guzhen

Chengguan

Village

The public

surveyed

support the

project

construction.

2nd public

participant

2007．4

Guzhen

Chengguan

Village

Visit on site

and

distribute

the survey

table for

Guzhen

Chengguan

Village

1. The public

surveyed

support the

project

construction.


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public

participatio

n

2. The public

think the

peripheral

environmental

sanitation

condition was

poor and needs

silt clearing; the

flooding disaster

in was serious

and they need

the construction

of the drainage

pumping station.

2007．7

Send out

requiring

letters

Asking for

experts

suggestion

s

City PMO Wang

zhenlong,

Tian

zhongzhi

Yang linhai,

Liu Chao,

Huang kang,

Jin Yanchun

Zhao

Yuangang

1. The experts strongly support the project

construction2. The silt

cleared

should be

handled

reasonably.

3. The

pumping

station

should be

good

for the drainage

gathering and far

away from the

crowd compact

district.

4. Prudently

choose the

waste

blocking

facility and the

waste blocking


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plan. The

pumping station

completes the

pollution

prevention and

treatment

measures of the

odor and the

noise.

5. Carry on

the project

with the

principle

of the urban

district first, then

three counties,

the main current

first, then the

branches, paying

equal attention

to pipe network

transformation in

the old city area

and pipe network

construction in

the new town

area.

2007.7.

9

The

conference

room of

Guzhen

County

Governmen

t

The public

negotiation

symposium

the Guzhen

County

Developmen

t and

Planning

Commission

,

PMO leader

group,

Villagers

from Dalou

Community

at Guzhen

such as

Xiaolou

Village,

Dalou

Village,

Laojie, Qili

Village,

1. hope to

consummat

e the

drainage

system, Clear

the silts in the

draining ditched\

s and ponds as

soon as possible

to enhance

draining water


August 2007

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NATURE OF


TIME PLACE WAY

ORGANIZATION UNIT


EIA agency Nanchenwei

Village, Qi

Village, etc.

as well as

the

concerned

personnel in

the Guzhen

Construction

Bureau and

the Water

Conservanc

y Bureau

treatment

2. The

temporary

access

road should

be

constructed. The

path in the

village cannot be

damaged.

3. implement

strictly the

environmen

t

mitigation

measures

4. The power

supply

department

must

guarantee

normal operation

of the drainage

station.

NATURE OF


TIME PLACE WAY

ORGANIZATION UNIT PARTICIPAN

T

MAIN CONCLUSIONS

Sub – project 7 Huaiyuan Project

1st public

participant

2007．1

Huaiyuan

County

Chengguan

Town

Visit on site

and

distribute

the survey

table for

public

participatio

n

Huaiyuan

County

PMO

leading

Group,

EIA agency

Huaiyuan

County

Chengguan

Town

the public

surveyed support

the project

construction,

2nd public 2007． Huaiyuan Visit on site Huaiyuan 1. The


August 2007

Page: 326/395

NATURE OF


TIME PLACE WAY


T

MAIN CONCLUSIONS

participant

7

County

Chengguan

Town

and

distribute

the survey

table for

public

participatio

n

County

Chengguan

Town

surveyors

supported the

project

construction, and

suggested to build

new drainage

pumping station,

doing silt scouring

of drainage ditches

2. The

environmenta

l sanitary in

the construction place is very poor. it

was extremely

necessary to carry

on comprehensive

improvement,

including silt

clearing and

vegetation

restoration;

3. Announce

ahead of time

before

the construction

and do

environment

protection

measures in the

construction site.

2007．7

Send out

requiring

letters

Asking for

experts

suggestion

s

City PMO Wang

zhenlong,

Tian

zhongzhi

Yang linhai,

Liu Chao,

Huang

kang,

1. The experts strongly support the

project construction2. The silt

cleared

should be

handled

reasonably.

3. The pumping


August 2007

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NATURE OF


TIME PLACE WAY


T

MAIN CONCLUSIONS

Jin

Yanchun

Zhao

Yuangang

station should

be

good for the

drainage gathering

and far away from

the crowd compact

district.

4. Prudently

choose the

waste

blocking facility

and the waste

blocking plan. The

pumping station

completes the

pollution

prevention and

treatment

measures of the

odor and the noise.

2007.7.

9

The

conference

room of the

Huaiyuan

County

Developmen

t and

Planning

Commission

The public

negotiation

symposium

the

Huaiyuan

County

Developmen

t and

Planning

Commission

PMO

leading

Group

EIA agency

inhabitants

in

Chengguan

Town

community,

farmers

from Lizuizi

village,

Xinzhuangz

i village,

Meicheng

village,

Longtou

Village, the

inhabitants

at the

Bianhe

1. The

conference

participants

\generally cared

about the sanitary

maintenance and

management

problems after the

silt clearing of

ditches and the

ponds.

2. It is suggested to

build rubbish

stacking and

collecting points in the

inhabitants’ living area

near the draining


August 2007

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NATURE OF


TIME PLACE WAY


T

MAIN CONCLUSIONS

Road, the

staffs in the

Chinese

Medicine

Hospital

ditches and ponds and

the sanitary department

clean and take away at

the scheduled time.

NATURE OF

PUBLIC

PARTICIPATION

TIME PLACE WAY

ORGANIZATI

ON UNIT


Sub – project 8 Wuhe Project

1st public

participant2007．1

The

influenced

villages near

Mohekou

Town

Industry

garden,

Sanpu

Village

Visit on

site and

distribute

the survey

table for

public

participatio

n

County

PMO,

The

Manag

ement

Commi

ssion,

EIA

agency

The

affected

villages

near the

Moheko

u Town

industry

garden,

Sanpu

Village

The public surveyed support the

project construction.

2nd public

participant

2007．7

The

influenced

villages near

Mohekou

Town

Industry

garden,

Sanpu

Village

Visit on

site and

distribute

the survey

table for

public

participatio

n

The

affected

villages

near the

Moheko

u Town

industry

garden,

Sanpu

Village

1. The public surveyed

support the project

construction

2. The surveyors cared about

the problem of

guaranteeing the quality and

volume of water supply most.

They wish to use the water from

the surface water works.

3. they thought it was

urgently needed to

improve the water facilities, the

sewage facilities, the road

facilities in the Mohekou industry

development area;

2007．7 Send out

requiring

letters

Asking for

experts

suggestion

City

PMO

Wang

zhenlon

g,

1. The experts strongly support the project

construction2. There are water drainage

problems because of low topography of garden


August 2007

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NATURE OF

PUBLIC

PARTICIPATION

TIME PLACE WAY

ORGANIZATI

ON UNIT


s

Tian

zhongzh

i

Yang

linhai,

Liu

Chao,

Huang

kang,

Jin

Yanchu

n

Zhao

Yuanga

ng

area.3. There are problems for the

enterprises in the garden area whether or not being able to meet the pollution discharge standards. 4. It should be carried on the

technical proof to the treating process and adopt suitable limiting condition for the chemical enterprises 5. The water resources proof

and comparison and selection of the water supply plan to the surface water works should be carried out.

2007.7.6

The

conference

room of

Mohekou

industry

garden

managemen

t

commission

The public

negotiatio

n

symposiu

m

Manag

ement

commi

ssion

associ

ation in

Mohek

ou

Town

Industr

y

garden

, EIA

agency

Villagers

from

Moheko

u

Village,

Tuanjie

Village,

Sanpu

Village,

Tangche

n

Village,

Lijiawa

Village,

Yuanji

Village

1. It should be solved for the problem of the

draining water in the land which is not taken over for use.2. The location selection of

the wastewater treatment plant should be reasonable to guarantee no the odor influence on the inhabitant area. 3. The inhabitants are willing

to pay the suitable fee for using the tap water.4. It is hoped to do effective

collection and processing for all the production wastewater and the sewage in the town and all water is integrated completely in the sewage treatment plant to be constructed.


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11Summary of EMPs

11.1 Environmental Administrative Authority and Duties

Relevant organizations for the project’s environmental protection work can be classified into: administrative authority, supervision authority and monitoring authority and the corresponding duties are as follows: Administrative Authority

The managerial relationship between administrative authority and this project refers to the following table.

Table 150: Managerial Relationship between Administrative Authority and Project

No

Project Name Project DescriptionAdministrative

Authority

1

Tianhe River

Flood

Prevention

Station

Tianhe River Flood Prevention Station Project

Bengbu Municipal

Bureau of Water

Resources

2Longzi River

Project

Slope protection and the vegetation along the bank of

the Longzi River,

Bengbu Economic

Development Zone

Administration

Longzi River Flood Prevention Pumping Station

Project

Bengbu Municipal

Bureau of Water

Resources

Cao Mountain Bengbu Economic

Development Zone

Administration

3 Xijiagou Project

Baligou –Donghai Road to east side of riverway,

bridge section of Qingjia Mountain

Bengbu High tech

Development Zone

other areas from Tushan Road Bridge to Qingjia

Mountain bridge section Yuhui District


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No


Authority

Changzhong Road to Yanshan Road

PLA Vehicle

Management

Institute

South of Qingshan Road Bengbu High tech

Development Zone

4

Urban Drainage

and Flood

Prevention

Project

3 Flood Prevention Stations in Xinchuantang and

Nanshijia, as well as urban rainfall and sewage

pipeline project

Bengbu

Construction

Commission

The project of rainfall pipeline network and sewage

pipeline network in Economic Development Zone

Bengbu Economic

Development Zone

Administration

Rainfall pipe network in High-tech Development ZoneBengbu High tech

Development Zone

Rainfall pipe network and Elevated Pumping Station

at east bank of Longzi River

Longzi River Area

of Bengbu City

5Huaishang

District Project

Wuxiao Street Flood Prevention Pumping Station

Bengbu Municipal

Bureau of Water

Resources

Small Bengbu, Wangxiaogou Flood Prevention

Station, Huaibei Road and surrounding environment

treatment, construction for 21 roads within the city, as

well as sewage pipeline of Daqing North Road

Huaishang District

Government

6 Guzhen County

Project

Sewage pipeline construction of Chengguan Town,

slope protection and afforestation of south bank of the

Sanba River, ditch and pond regulation within the

town and slope protection afforestation

Construction

Engineering Bureau

of Guzhen County

Flood prevention ditch., drainage ditch dredging,

banks protection and afforestation, drainage station

and culvert gate project, bridge works and levee flood

control road works

Water Resources

Bureau of Guzhen

County


August 2007

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No


Authority

Closure works Chengxi inflowing river pollution

discharge outlet

Environmental

Protection Bureau

of Guzhen County

7Wuhe County

Project

Sanpu ditch dredging and the Sanpu River Flood

Prevention Pumping Station Project

Water Resources

Bureau of Wuhe

County

Construction of Surface Water Plant and Sewage

Treatment Plant

Urban Construction

Commission of

Wuhe County

Mohekou Town and road works in the park Mohekou Park

8Huiyuan County

Project

Flood Prevention Ditch Project and Flood Prevention

Pumping Station Project

Water Resources

Bureau of Huiyuan

County

Drainage Pipeline Network

Construction

Bureau of Huiyuan

County

Rainfall Pipeline Network for grain and oil processing

area and supporting roads

Chengguan Town of

Huiyuan County

Main duties for Administrative Authority are as follows:

1) Implement thoroughly environment protection regulations and policies issued by National Departments and Water Source Department

2) Implement environment management on the project during Construction Period and operating period.

3) Set up “Environment Protection Management Office” under each Engineering Construction Headquarters in the period of construction and appoint 2-3 experienced environment protection management staff, and the proposed Environment Relieving Measures in this report implemented by the contractors of supervision project.

4) Appoint environment monitoring authority or relevant departments to make environmental supervision, monitoring and environment protection acceptance on the project.

Supervision Authority


August 2007

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Bengbu City Environmental Protection Bureau receives job instructions from Anhui Provincial Environmental Protection Bureau and supervise construction unit to carry out environmental management plan and implement relevant regulations and standards concerning environmental management .In addition, Bengbu Municipal Environmental Protection Bureau also coordinates the departments to do a good job in environmental Protection and is responsible for supervision and inspection on the construction, implementation and operation of environmental Protection facilities about the projects within administrative jurisdictional area. Monitoring Authority

According to relevant regulations concerning environmental management on construction project, the project shall implement environmental monitoring system. Independent works of each subproject should appoint two monitors, who are responsible for fully supervising, inspecting, managing and controlling specialized departments in charge of the implementation of environmental protection projects and the contractors of engineering projects in charge of environmental protection work during construction period and are answerable to inspect and supervise implementation conditions of environmental protection measures carried out by construction unit pursuant to monitoring plan contents in construction period. After finishing the construction, those monitors should report monitoring authority and project owner to accept environmental protection conditions about the construction and sign Work Completion Certificate as well as Works Hand-Over Document.

11.2 Environmental management supervision plan

11.2.1 Environmental management supervision plan objective

Through drawing up scientific and effective environmental management plan, the construction and operation of this project are able to meet the idea of “Three Simultaneities” on national economic and environmental construction, that is, simultaneous plan, simultaneous implementation, and simultaneous development. And this plan provides the basis for the designed implementation of environmental protection measures and the supervision carried out by environmental protection departments to the works.

11.2.2 Environmental management supervision plan content

Construction period

1) Shall supervise and carry out environmental protection measures in construction period in order to make them implemented effectively;


August 2007

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2) When the construction is made on heavily-trafficked road section, it is required to implement transport impact relieving measures regulated by this report in order to abate traffic adverse impact and coordinate traffic congestion accidents caused by the construction of this project;

3) Shall control the plants destruction and soil erosion caused by this construction, recover temporary land occupied for the construction and restore the vegetation;

4) Shall accept the public’s complaint on construction disturbance events and deal with coordinately construction disturbance to the life and work of the residents and the units along the road;

5) Shall control construction operating area and regulate the behavior of the builders in order to man –made destruction on ecology and vegetation out of construction site.

6) If underground cultural relics are found in the process of engineering construction, shall stop construction and organize personnel to protect the site, and then report cultural relics department so as to avoid the accidents of cultural relics destruction.

Operation period

1) After the construction is finished, shall strengthen the supervision and management on ecological environment impacted by construction project concerning the waters, soil, vegetation, atmosphere and noise and sensitive points of surrounding environments as well as the protection of environmental protection targets, and effective measures should be adopted to prevent the destruction of surface soil and vegetation and pollution of ground water and surface waters, in addition, the measures are also used to stop the behavior form destroying acoustic environment of environmental sensitive points, such as the residents area and hospital, and atmospheric environment;

2) Environmental Monitoring authority is regularly entrusted to monitor the environment under operation period;

3) Shall supervise effective fulfillment of the environmental protection measure under operation period;

4) Shall thoroughly implement national and local environmental protection regulations, laws and standards;

5) Advanced techniques and environmental protection experience should be widely applied; at the same time, shall organize relevant trainings on special skills of environmental protection for the management staff, who take part in the operation of this project.


August 2007

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11.3 Environmental monitoring plan

11.3.1 Environmental monitoring proposal

The purpose of regulating Environmental Monitoring Proposal is to supervise the implementation of all environmental protection measures and adjust the measures in light of monitoring results; meanwhile, the plan provides the basis for implementation time and plan on environmental measures. The principle to regulate environmental monitoring plan is to predicate what main environmental impact will be brought under construction and operation period.

11.3.2 Environmental monitoring authority

Environmental monitoring work of this project can entrust Bengbu Municipal Environmental Monitoring Station or the Units with monitoring qualification to undertake. Before the commencement of the construction, Construction Unit shall sign Environmental Monitoring Agreement on Construction Period with Bengbu Municipal Environmental Monitoring Station or the Units with monitoring qualification; in addition, Environmental Monitoring Agreement on Operation Period shall be signed with Monitoring Station before the project is delivered and operated.

11.3.3 Environmental monitoring plan

Environmental Monitoring Plan of this project can refer to the following tables.

Monitoring data during Construction Period should be processed and evaluated in time, and then engineering measures should be adjusted according to evaluation results, especially, water quality on the sewage, which are discharged into the Huaihe River, the Tianhe River, the Longzi River, the Wohe River, the Beifei River, the bypass channel of Mochong River, the Huaihongxin River and other rivers, should be monitored. Meanwhile, water treatment facilities and drainage facilities should be adjusted in time according to the results of water quality monitoring in order to guarantee that the sewage meets the standard to discharge.

Database Management System and Quality Auditing System are set up for monitoring data. The audited data are uniformly kept for the convenience of future inquiry and check.


August 2007

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Table 151: Environmental monitoring plan of the Tianhe Project during construction period

Main affecting factor Monitoring Point and positionMonitoring

index

Monitoring

frequencyExecuting standard

Routine monitoring

agency

Regular

supervising and

managing

agency

Raising dust

Construction area

boundary(construction operation

area)

One point

TSP

Twice in the

construction

period

Ambient Air Quality

Standard level 2

City environmental

monitoring station

City

Environmental

Protection

Bureau

Noise

Construction area

boundary(construction operation

area)

One point Leq

Dba

Twice in the

construction

peak period

Noise Limits for

Construction Site

Qualified agency

with certificate or

City environmental

monitoring station

City

Environmental

Protection

Bureau

Construction temporary area

boundary (south of the pumping

station)

One point

Sludge

Silt dug from the pumping

station hole excavated for

building foundation

Cd、Cr、Cu

Hg、Pb、As

Once , after

dug and

before refill




City environmental

monitoring station

City

Environmental

Protection

Bureau


August 2007

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Table 152: Environmental monitoring plan of Longzi Lake project during construction period

Major effect

factor

Monitoring

contentMonitoring target

Monitoring point and

position Monitoring frequency Executing standard

Routine

monitoring

agency

Regular

supervising

and managing

agency

Water

environment

Water residual

at dump site

Ss、tn、tp Discharge outlet of the

sedimentation at each

dump site

Online monitoring of ss, tn and tp,

Twice in the construction period

Integrated

Wastewater

Discharge Standard

Level 1

Qualified

agency with

certificate or city

environmental

monitoring

station

City

Environmental

Protection

Bureau

Atmospheric

environment

Raising dust in

construction

Tsp Entrance to the Xinfu

village in the east side of

the draining pumping

station of Longzi lake

Once every year at the

construction peak time

Ambient Air Quality

Standard level 2

City

Environmental

Monitoring

Station

City

Environmental

Protection

Bureau

Odor Nh3、h2s Dump site for sludge Once, before the construction of

scouring project, take it as the

background value.

Once in the operation period

at the dump site of the scouring

project

Emission Standards

for Odor

Pollutantslevel 2


August 2007

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Major effect

factor

Monitoring

contentMonitoring target


position Monitoring frequency Executing standard

Routine

monitoring

agency

Regular

supervising

and managing

agency

Sound

environment

Noise of

construction

machinery

Leq Construction operation

area

One point

One point ,

Twice at the construction peak

time

Noise Limits for

Construction Site

Qualified

agency with

certificate or city

environmental

monitoring

station

City

Environmental

Protection

Bureau

Sludge Silt scouring Cd、cr、cu

Hg、pb、as

Choose two scouring

area, one monitoring

point each

Two pints, after sludge removing

and before refilling, takes them as

the environment background




City

environmental

monitoring

station

City

Environmental

Protection

Bureau

Table 153: Environmental monitoring plan of Longzi Lake project during operation period

Major effect

factor

Monitoring

content

Monitoring

target

Monitoring

point and

position

Monitoring frequency Executing standardRoutine monitoring

agency

Regular supervising and

managing agency


August 2007

Page: 339/395

Sound

environment

Operation

al noise of

the drain

pumping

station

Leq One point

each

communit

y of Yuye

Xincun

and

Jinyeyuan

2 points in total,

monitoring once when

the drain pumping

station in operation

every year，monitor

once during daytime

and at night,

respectively

Noise Limits for

Construction Site

Level 2

Qualified agency

with certificate or

city environmental

monitoring station

City Environmental

Protection Bureau

Table 154: Environmental monitoring plan of urban project during construction period

Major effect

factorMonitoring point and position Monitor target

Monitor


Routine monitor

organization

Regular

supervising and

managing

organization

Raises the

dust

Construction area boundary

(construction operation area)

One point

Tsp

In

construction

period

Twice

Ambient Air Quality

Standard level 2

City monitoring

station

City Environmental

Protection Bureau

Noise

Construction area boundary(construction

operation area)

One point

Leq , db( a )

Continuously

equivalent a acoustic

level

In a

construction

peak

Twice

Noise Limits for

Construction Site

Organization with

certifications or city

monitoring station

City Environmental

Protection BureauConstruction temporary area boundary

One point


August 2007

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Table 155: Environmental monitoring plan of urban project during operation period

Major effect

factorMonitoring point and position

Monitor

targetMonitor frequency Executing standard

Routine monitor

organization


managing organization

Noise

West Shengli Rd., Tiandiren

garden

East Shengli Rd,Suncheng

Village

Zhongrong St.,Jianguo Rd.

Community

Hongqi 2 Rd.,

Sijiyangguang Garden

Dingmiao Village in Longhu

District

Huangshan Village in

Gaoxin District

The drain prevention station

at Yinghu Rd.,

Jianchaxincun Village

Leqa

Total 7 points During

operation period,

once for each point

Method of

Measuring Noise at

Boundary of

Industrial

Enterprises

Type 1,

Type 2,

Type 3,

Type 4. ×

Request a qualified

organization with

certificates

City Environmental

Protection Bureau

×Note：1、for the 4 draining pumping stations in the old city district ，noise at the factory boundary executes Method of Measuring Noise at Boundary of Industrial EnterprisesType 2, Type 4;

2、for the 2 wastewater pumping stations in the Gaoxin District ，noise at the factory boundary executes Method of Measuring Noise at Boundary of Industrial Enterprises type 3, Type 4;；3 、 for the 1draining pumping station in the Longzihu District ， noise at the factory boundary executes Method of Measuring Noise at Boundary of Industrial


August 2007

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Enterprises type 3, Type 4.

Table 156: Environmental monitoring plan of Xijiagou & Baligou project during construction period

Main affecting

factor

Monitoring content

Monitoring index

Monitoring Point and position Monitoring


Routine monitoring

agency

Regular supervising

and managing agency

Atmospheric environment

Raising dust

TSPOnce each at the constructionsite at Xijiagou and Baligou,

respectively

2 points，once each in the

construction peak period

Ambient Air Quality Standard level 2

City Environmental Monitoring

Station

City Environmenta

l Protection Bureau

Odor NH3、H2S

One point each sludge dumping site beside Xijiagou and

Baligou, respectively

2 points，once each in the

construction peak period

Sound environment

Construction

machinery noise

Leq

Two points each for the Xiejiagou and the Baligou,

respectively (different zones and stage)

Inspect once –twice every year

Level 1 of Integrated Wastewater Discharge

Standard when discharging into the water body to

directly, while level 3 when dispersing into municipal

pipe network connected with the sewage factory

Qualified agency with certificate

requested by the water

conservancy Bureau

City Environmenta

l Protection Bureau


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Sludge Silt dugCd、CrCu、HgPb、As

Two points for the Xiejiagou and the Baligou, respectively

(different zonesand stage)

4 points，one before the cleaning

the sludge

Control Standards for Pollutants in Sludges from

Agricultural Use

City Environmental Monitoring

Station

City Environmenta

l Protection Bureau

Table 157: Environmental monitoring plan of Huaishang project during construction period

Major effect

factor


positionMonitor target Monitor frequency Executing standard

Routine monitor

organization



Air

At the boundary of

construction site ( binhe

av., 3 flood prevention

drain stations）Tsp、

4points

Once /year/point

Ambient Air Quality

Standard level 2

Air pollutant synthesis

emissions standard

City environmental

monitoring station

Environmental Protection

Bureau

Noise

At the boundary of

construction site (3 flood

prevention drain stations,

binhe av.）Leq dba

4points

Once /point in the

construction period

Noise Limits for

Construction Site

Qualified agency with

certificate or city

environmental monitoring

station


Bureau

Sludge

Silt scouring （ Beifei

River, xiaobengbu,

wangxiaogou drain

stations）

Cd、cr、cu

Hg、pb、as

3 points

Once /year/pointSoil environment quality

standar level 3

City environmental

monitoring station


Bureau

Table 158: Environmental monitoring plan of Huaishang project during operation period


August 2007

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Major effect

factorMonitoring point and position Monitor target

Monitor


Routine monitor

organization

Regular

supervising and

managing

organization

Noise

One point at each position of

24th middle school, liu

village ,respetively

Leq dbaTwo points,

Twice /year

Sound Environment Quality

Standard

Type 3

District

Environmental

Protection Bureau

City

Environmental

Protection

Bureau


August 2007

Page: 344/395

Table 159: Environmental monitoring plan of Guzhen project

Sub projects Monitoring

time

Environmental

main factor


position

Monitoring item Monitoring frequency Monitoring

agency

Responsible

agency

Cognizant

agency

City flood

waterlogged

prevention

and

In the

construction

period

Environment

air

Left banking

road of Huihe

River

Right banking

road at Sanba

River Damu

Bridge to

Sanbahan hole)

TSP 2 points，in the construction

period, once for every point

Environment

monitoring

Station in

Bengbu City ,

Environment

monitoring

Station at

Guzhen county

Water

conservancy

bureau at

Guzhen

county

Environmenta

l Protection

Bureau in

Bengbu City


August 2007

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time

Environmental

main factor


position


agency

Responsible

agency

Cognizant

agency

Noise At the right

banking road at

Sanba River

(Damu Bridge to

Sanbahan hole)

One point

At the center of

Xiaolou Pumping

Station

At the center of

Guxi Pumping

Station

Leq Total 3 points，In the operation period,

monitor two cycles for

each point, monitor once

during daytime and at

night respectively for each

cycle

Bottom sludge Point and Position

near Wangsiweizi at

Jiegou

Arsenic, lead,

cadmium, copper,

zinc, mercury,

chromium, organic

matter

Once, before the construction

starts, takes it as the

environment background


August 2007

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time

Environmental

main factor


position


agency

Responsible

agency

Cognizant

agency

In the

operation

period

Noise Wujinli Village

1st Guzhen

Middle School

Wujin Primary

School

2nd Guzhe

Middle School

2nd Guzhen

Primary School

Guzhen People’s

Hospital

Leq 6 point in total, 1 cycle for

each point every year, test

once during day and night,

respectively each time


August 2007

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time

Environmental

main factor


position


agency

Responsible

agency

Cognizant

agency

The City

sewage

network and

the outlet

dam tube in

the west of

the city

In

construction

period

Noise The entrance of

the Party School

at Dacheng Rd.

The entrance of

the 2nd Guzhen

Middle School at

Shengli Rd.

The entrance of

the People’s

Hospital at

Guyang Rd.

Leq 2 cycles in the construction

period, for each cycle, once

during day and night ,

respectively

The

Construction

Bureau at

Guzhen

County

Environmenta

l Protection

Bureau at

Guzhen

County Sludge Sludge removing of

the ditches and the

ponds at Niushi Alley

Arsenic, lead,

cadmium, copper,

zinc, mercury,

chromium, organic

matter

Once，basis monitoring

before the construction

starts


August 2007

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Table 160: Environmental monitoring plan of Huaiyuan Project during construction period

Major

effect

factor

Monitoring point and position Monitor target Monitor frequency Executing standard

Routine

monitor

organization

Regular supervising

and managing

organization

Raising

dust

Construction area

boundary(construction operation area)

One point

TspIn construction period

Once

Ambient Air Quality

Standard level 3

County

environmental

monitoring

station

City Environmental

Monitoring Station and

Environmental

Protection Bureau

Noise

1) Construction area

boundary(construction operation area)

One point Leqa

In a construction

peak

Twice

Noise Limits for

Construction Site

County

environmental

monitoring

station

City Environmental


Environmental

Protection Bureau2)Construction temporary area

boundary One point

Sludge

Sludge from the pond luotuoling hill

and the pond at Chinese Medicine

Hospital

Cd 、cr 、c

u

Hg 、pb、a

s

Once, after sludge

removing and before

refilling, takes it as

the environment

background




County

environmental

monitoring

station

City Environmental


Environmental

Protection Bureau

Table 161: Environmental monitoring plan of Huaiyuan project during operation period

Major effect

factor


position

Monitor

target

Monitor frequency Executing standard Routine

monitor




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organization

Noise

Xinzhuang village

where is the nearest

to the xinzhuangzi

pumping station

One point

Leq a1-2 times When drains and

waterlogged in the flood season

Method of Measuring

Noise at Boundary of

Industrial Enterprises

Type 1

County

Environmental

Monitoring

Station

City Environmental


Environmental

Protection Bureau


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Table 162: Environmental monitoring plan of Mohekou Project during construction period

Main affecting

factor Monitoring Point and position Monitoring index

Monitoring


Routine

monitoring

agency

Regular

supervisin

g and

managing

agency

Atmosphere

Construction site boundary ( drain

pumping station, sewage

treatment

plant, water treatment plant, one

point in the development

zone）

TSP

4 points total,

once every point

in the construction

period

Ambient Air Quality

Standard level 2 City

environmental

monitoring

station

County

environme

nt

supervisio

n brigade

Sludge scouring

position （ Sanpudagou Ditch,

Mochong yinhe River ）NH3 、H2S

2 points,

Once each in the

construction

period

Emission Standards for

Odor Pollutants level 2

Noise Construction site boundary ( drain

pumping station, sewage

treatment plant, water treatment

plant, one point in the

development zone ）

Leq,dba 4points ， Once

each in the

construction

period

Noise Limits for

Construction Site

District

environmental

monitoring

station


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Sludge

Sludge scouring

position （ Sanpudagou Ditch,

Mochong yinhe River ）Cd 、Cr、Cu

Hg 、Pb 、As

2points ， Once

each before the

construction

period, take it as

the environment

background

Soil Environment Quality

Standard level 3

City

environmental

monitoring

station


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Table 163: Environmental monitoring plan of Mohekou Project during operation period

Main affecting factor Monitoring Point

and positionMonitoring index

Monitoring


Routine monitoring

agency

Regular supervising

and managing agency

Atmosphere

Sludge area in the

wastewater

treatment plant

H2S 、NH3

1 point ，once

At the period of high

temperature in

summer

Discharge Standard of

Pollutants for

Municipal Wastewater

Treatment Plant Level

2

City Environmental

Monitoring Station

County Environment

Supervision Brigade

Wastewater Water quality of

Inlet and outlet in

the wastewater

treatment plant

Ph 、 codcr 、 SS

、 BOD 、 ammonia

nitrogen

2 points ， twice

/year /point

Disperse into

municipal pipe

network if there is a

sewage factory. Carry

out Integrated

Wastewater

Discharge Standard

level 3


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Water quality

Water quality at the

inlet of water

treatment plant

PH, turbidity,

ammonia nitrogen,

total large intestine

bacteria colony,

petroleum class,

permanganic index,

total soluble solid

2 points ， twice

/year /point

Water quality at the

inlet Environmental

Quality Standards for

Surface Water level 3;

For water quality of

the outlet,

Environmental Quality

Standards for Surface

Water

Noise

One point at the

village near the

Sanpuhu Lake

Drain

Pumping Station

Leq dba1 point

Once /year

Sound environment

Quality Standard

Type Ⅲ


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12Resettlement and Social Impacts

12.1 RAP

12.1.1 Resettlement Proposal

Foundation

The preparation of the resettlement action plan of this project and the implementation of future resettlement work shall be made strictly in accordance with the pertinent requirements of World Bank Business Guideline OP4.12. The resettlement work shall be executed strictly according to the resettlement compensation standard stipulated in the foregoing action plan and prior consent of the World Bank is required if there is any change during the resettlement.

Principle

To optimize the project design, keep away from the area with dense population or multi-storey, high-rise and permanent buildings, reduce the area that is influenced by land expropriation and house removal to the minimum, and minimize the number of involuntary resettlement is the principle this resettlement observes. All the involuntary resettlement will be included into the project construction, providing sufficient capital for the migrants and making them benefit from the project. The migrants will receive help during the migration-relocation as well as from the resettlement area. For the influenced households, their living environment will be improved and the resettlement area will be equipped with complete facilities for life, providing with convenient traffic and comfortable environment. Minimize the losses that are incurred to the enterprises and institutions by the land expropriation and housing removal, for instance, if the housing removal is inevitable, the compensation for the loss of suspension should be made, and the enterprises and institutions should be properly treated so that the production and operation can be resumed soon. The migrants should be encouraged to participate in the preparation of resettlement plan and the implementation of the resettlement, and the wills of the migrants should be fully respected. The objective of the target police is to avoid the negative influences brought by the land expropriation and housing removal to the most. For the property of the people who are affected by the negative influences, compensation will be made according to the replacement price. The resettlement objective of this project is to ensure the migrants can be compensated for all the losses they suffer from, can be properly resettled and well recover from the loss, enable them


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to share and enjoy the benefits of the project, offer them subsidy for their temporary difficulties to ensure their income and living standard as well as the production and profiting ability of the enterprises can be improved or at least be resumed to the higher level before the migration-relocation or the start of the project.

Organization

Bengbu City established the leading group office of urban construction environmental protection project the World Bank loan for, responsible for providing guidance to the preparation of resettlement plan of environment control project of Bengbu, the World Bank loaning city, the implementation of land expropriation and housing removal and contacting with the World Bank as well.

12.1.2 Compensation Standard

Where the housing removal and land expropriation is made at the state owned and collectively-owned land within the planning scope of this project and it is required that the dismantled and the unit whose land is expropriated should be compensated and resettled, the compensation standard should be prepared and made in accordance with the Land Management Law of the People's Republic of China, Regulation on the Dismantlement of Urban Housing, relevant laws and regulations, Operational Polices for Involuntary Resettlement OP4.12 of the World Bank and the local and actual situation of the project.

12.1.3 Public Participation

Since the public participation did not make the majority citizen have a clear and complete understanding and knowledge of the project construction, the housing removal policy and even the rights range when their legal rights and interests are infringed during the housing removal, after the plan is reviewed and approved by the World Bank, the publicity and propaganda of the policy should be strengthened, utilizing such means as television, newspaper, and internet to the most to introduce the project and relevant policies of land expropriating and housing removal, and spreading the information book of resettlement after the project assessment and prior to the moving to inform the resettlement of the project situation, land expropriation and housing removal policies, relevant laws and regulations, and the approach for appeal.

During the preparation of the resettlement plan and the implementation, the mechanism of appealing is established. After the resettlement institutions of all levels have timely discussion and treatment, all the resettlement institutions will be free for receiving the complaint and appeal of the influenced people.


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12.1.4 Downtown Drainage Sub-project of Bengbu

(1) Land Occupancy and Expropriation

The downtown drainage sub-project of Bengbu mainly involves the land of pump station work, rain water and sewage pipe work and road work. The area within the land scope for works and the area where the project construction so seriously affects the production and life of the residents that no recovery can be made are all included in the influenced area scope of the land expropriation and housing removal of the project.

(2) Compensation Budget

The compensation budget of this project includes the following five compensation costs: the compensation cost for permanent land occupancy, the compensation cost for dismantling the urban residential housing, the compensation cost for dismantling the rural residential housing, the compensation cost for the influenced shops, and the compensation cost for the influenced infrastructures and ground attachment.

The total budget of this project is RMB122,000,000, including the compensation cost of RMB82,492,400 for permanent land occupancy, accounting for 67.36%, the compensation cost of RMB19,942,200 for dismantling the houses of both the urban residents and rural residents, accounting for 16.28%, and the compensation cost of RMB1,143,300, accounting for 0.93 %.

（3）Conclusion Permanently Expropriated Land

The permanently expropriated land occupies 1202.8 mu in area, including farmland, non-agriculture land and permanent loss of crops, with 864 households and 2819 persons involved. All the villages / production units that are influenced can have compensation. The influenced will receive the young crops compensation. If the influenced villages will not reallocate the farmland, the influenced will receive the cash compensation ：resettlement subsidy and part of the land compensation for the recovery of income and living. The young crops compensation for the expropriated land will be paid as per the compensation standard of Bengbu. If the collectively-owned land will not be reallocated, the influenced will receive the resettlement subsidy and part of the land compensation for the recovery of income and living. The local village and town government and the enterprises of the villages will provide job opportunities to the influenced. And the client of the project will provide the skill training in the first place to the influenced.

Permanently Dismantled Private Housing


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The total floor area is 34602.96m2, including the buildings of the land, and there are 170 influenced households, including 631 persons. The influenced will receive cash compensation and be provided with affordable housing or relocation housing. The house owner without Title Deed will receive the compensation for house replacement price. For the dismantled rural housing, the compensation will be made in cash as per the replacement price of the same floor area plusing the price of housing land, while for the dismantled urban housing, the cash compensation will be made as per the replacement price or exchange the house property right. If the dismantled are not satisfied with the compensation standard for housing removal, they can commission the professional agency to assess the property, and the result of assessment will be the compensation standard of housing removal.

Shops

There are totally 6 shops, involving 21 persons. The floor area of the influenced buildings is 2090.98m2. The shopkeeper of the influenced shops will receive cash compensation or their shops will be rebuilt in other places. All the owners of the business buildings before the date of the publication of the project construction, which are either the buildings without certificate or the extended temporary buildings, should receive compensation. For the dismantled buildings, the cash compensation should be made as per the policy of Bengbu. And the influenced enterprises will receive subsidy for relocation.

Public Facility

As the attachment, the influenced will receive cash compensation. The influenced collectivity will receive cash compensation or repairing. For the attachment on the ground of the expropriated land, compensation should be made in the replacement price in cash or repairing should be made till the ground is resumed to its previous condition or a better condition, and for the dismantled the buildings, cash compensation should be made in the replacement price of the same floor area.

12.1.5 The Sub-project of Guzhen County

（1）Land Occupancy and Expropriation

The influenced scope of this project covers ： 2 villages in Chengguan Town (Meiying Village and Dongmiao Village), including 7 groups (Donghu Group, Huangying Group, Houmei Group, Xiaying Group, Jiangguai Group, Houdui Group, and Pangying Group), 484 households, 1936 persons, and 811.6mu paddy field. In Huanyuan County, there is 12 mu state-owned land, 21 influenced urban residential housing with1686m2 housing removal area, 4 influenced shops and 1 influenced enterprise.


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（2）Compensation BudgetThe budget includes such 5 costs as the compensation cost for dismantling the rural collectively-owned land, the compensation cost for dismantling the urban residential housing, compensation cost for the influenced enterprises, compensation cost for shops and the compensation for the influenced infrastructures.

The total resettlement budget of this project is RMB44,784,900, including the cost of RMB31,395,100 for rural collectively-owned land expropriation, accounting for 70.1 ％ ; the compensation cost of RMB2,558,500 for urban residential housing removing, accounting for 5.7%, the compensation cost of RMB144,000 for the influenced enterprises, accounting for 0.3%, the compensation cost of RMB773,000 for the influenced shops, accounting for 1.7 ％ and the cost of RMB16,900 for illegal building, accounting for 0.04％.


The permanent expropriated land is 661.09 mu in area, including farmland, non-agriculture land and the permanent loss of crops, with 615 households and 3418 persons are involved. All the influenced villages/ work groups can receive compensation. The influenced will receive young crops compensation. If the influenced village will not reallocate the farmland, the influenced will receive cash compensation, namely the resettlement subsidy and part of the land compensation, for the recovery of the income and living.


The total floor area is 3351.39m2 including the buildings on the ground. There are 34 households influenced, involving 138 persons. The influenced householders will receive cash compensation and be provided with affordable housing or relocation housing. The house owner without Title Deed will receive the compensation made as per the house replacement price. For the dismantled rural housing, the compensation will be made in cash as per the replacement price of the same floor area plusing the local price of curtilage, while for the dismantled urban housing; the cash compensation will be made as per the replacement price or exchange the title (house property right). If the dismantled are not satisfied with the compensation standard for housing removal, they can commission the professional agency to audit the property, and the result of auditing will be the compensation standard of housing removal.

Shops

There is totally 1 shop, involving 63 persons. The floor area of the influenced buildings is 2829m2. The shopkeeper of the influenced shops will receive cash


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compensation or their shops will be rebuilt in other places. All the owners of the business buildings before the date of the publication of the project construction, which are either the buildings without certificate or the extended temporary buildings, should receive compensation. For the dismantled buildings, cash compensation should be made as per the policy of Bengbu. And the influenced enterprises will receive subsidy for relocation.

Public Facility

As the attachment, the influenced will receive cash compensation. The influenced collectivity will receive cash compensation or repairing. For the attachment on the ground of the expropriated land, compensation should be made in the replacement price in cash or repairing should be made till the ground is resumed to its previous condition or the better condition, and for the dismantled the buildings, cash compensation should be made in the replacement price of the same floor area.

12.1.6 Sub-project of Huaiyuan County

（1）Land Occupancy and ExpropriationThe flood prevention sub-project of Guzhen County involves land for ditch dredging work, embankment work, drainage pumping station building and rebuilding of municipal pipe network. The area within the land scope for works and the area where the project construction so seriously affects the production and life of the residents that no recovery can be made are all included in the influenced area scope of the land expropriation and housing removal of the project.

（2）Compensation BudgetThe budget includes 5 costs, namely the compensation cost for dismantling the rural collectively-owned land, the compensation cost for dismantling the urban residential housing, compensation cost for the influenced enterprises, compensation cost for shops and the compensation for the influenced infrastructures.

The total resettlement budget of this project is RMB44,784,900, including the cost of RMB31,395,100 for rural collectively-owned land expropriation, accounting for 70.1 ％ ; the compensation cost of RMB2,558,500 for urban residential housing removing, accounting for 5.7%, the compensation cost of RMB144,000 for the influenced enterprises, accounting for 0.3%, the compensation cost of RMB773,000 for the influenced shops, accounting for 1.7 ％ and the cost of RMB16,900 for illegal building, accounting for 0.04％.

（3）Conclusion RIg00002 A17978/CIGZ070287

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Collectively-Owned Land

The compensation for land expropriation includes land compensation, resettlement subsidy and the compensation for ground attachment and young crops. The land compensation shall be in the possession of the rural collective economic organization, and the land expropriator can pay the village committee the land compensation in some proportion (no more than 20%) for the land expropriation, the money of which will be used by the village committee for developing the production and public welfare and shall not be defalcated. The remained land compensation can be paid to the land lost peasants directly or included into the basic living security fund of the land lost peasants. The compensation for the ground attachment and young crops shall be paid to the owner of the ground attachment and the young crops.


According to the compensation and resettlement policy for the housing removal of this project, two ways of compensation and resettlement are adopted, namely, the cash compensation and the exchange of house property right. The resettlement can choose the compensation and resettlement way that fits their economic condition and individual demands. Where the cash compensation is chose, the compensation shall be determined as per the assessment price of the local real estate market with such factors as the location, usage and floor area of the dismantled buildings taken into account. The formula for calculating the cash compensation is the upper limit of the cash compensation price of the dismantled building×the floor are of the dismantled building.

Enterprise Building Removal

12.1.7 Sub-project of Huaishang District

（1）Land Occupancy and ExpropriationThe influenced scope of this project: 2 towns (Xiaobengbu Town and Wuxiaojie Town), 7 villages/ resident committees (Binhe Zhengdu Village, Wuxiaojie Village, Shanxiang Village, Houlou Village, Chentai Village, Xiaobengbu Village and Gaoan Village). There are totally 281 households that are influenced and removed, and the influenced population is 1103. In addition, there is one enterprise and 4 urban residents that are relocated.

Related figures: the total land occupancy is 12001 mu in area, including 11735 mu state-owned land and 266 mu rural land; the total area of dismantled buildings is 49086.2 m2, including 48433.2 m2 dismantled rural housing and 653 m2 influenced enterprise.

（2）Compensation BudgetRIg00002 A17978/CIGZ070287

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The budget includes 5 costs, namely the compensation cost for dismantling the rural residential housing, the compensation cost for rural land expropriation, compensation cost for dismantling the urban residential housing, compensation cost for the influenced enterprises and the compensation for the influenced infrastructures.

The total resettlement budget of this project is RMB125,191,300, including the compensation cost of RMB41,773,700 for dismantling the rural residential housing, accounting for 46.58%; the compensation cost of RMB34,255,800 for rural collectively-owned land, accounting for 38.20%, the compensation cost of RMB123,000 for the influenced enterprises, accounting for 0.14%.

（3）Conclusion Rural Dismantled Housing

According to the compensation and resettlement policy for the housing removal of this project, two ways of compensation and resettlement are adopted, namely, the cash compensation and the exchange of house property right. The resettlement can choose the way of compensation and resettlement that fits their economic condition and individual demands. Where the cash compensation is chose, the compensation shall be determined as per the assessment price of the local real estate market with such factors as the location, usage and floor area of the dismantled buildings taken into account.

Collectively-owned land

The compensation for land expropriation includes land compensation, resettlement subsidy and the compensation for ground attachment and young crops.

12.1.8 Sub-project of Flood Prevention Control, Water Resource Control and Environment Improving of the Tianhe River

（1）Land Occupancy and ExpropriationThe environment control project of the Tianhe River and the Heihu Mountain involves the land for the work of pump station, irrigation and drainage station, road foundation, greenery and nursery, and woodland extension. The area within the land scope for works and the area where the project construction so seriously affects the production and life of the residents that no recovery can be made are all included in the influenced area scope of the land expropriation and housing removal of the project.

The land of the Tianhe River Pumping and Drainage Station is mainly for the station, including the land for the station building, the land for station


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management, the land for borrow area and the land for construction area. The land for station and borrow area is the permanent land. The total permanent land is 20.33 mu in area.

The surrounding environmental control of the Heihu Mountain mainly includes the road construction and the cultivation of the waterfront and wetland vegetation of the Heihu Mountain swag. The total permanently expropriated land is 45 mu in area, including 30 mu megranate orchard and 15 mu farmland.

The relocation of the Tianhe River Fishery mainly involves the expropriation of 1000 mu fishing pond and the expropriation of 72 mu plowland for road construction. In addition, 51 households of urban residents and the fishing enterprises will move.

（2）Compensation BudgetIt includes 5 costs, namely the compensation cost for the permanent land occupancy, the compensation cost for dismantling the urban residential housing, the compensation cost for dismantling the rural housing, the compensation cost for the influenced enterprises and the compensation cost for the influenced infrastructures and ground attachment.

The total resettlement budget of this project is RMB12,500,000, including the compensation cost of RMB97,793,900 for permanent land occupancy, accounting for78.23%, the compensation cost of RMB313,200 for dismantling the urban and rural residential housing, accounting for 2.5%, the compensation cost of RMB4,720,000 for the influenced enterprises, accounting for 3.78 % and the compensation cost of RMB110,000 for the influenced infrastructures and ground attachment, accounting for 0.01%.


The permanent expropriated land is 1737.33 mu in area, including farmland, non-agriculture land and the permanent loss of crops, with 81 households and 248 persons are involved. All the influenced villages/ production groups can receive compensation. The influenced will receive young crops compensation. If the influenced village will not reallocate the farmland, the influenced will receive cash compensation, namely the resettlement subsidy and part of the land compensation, for the recovery of the income and living.


The total floor area is 4350m2 and the buildings are on the ground. There are51 influenced households, involving 142 persons. The influenced will receive cash compensation and be provided with affordable housing or relocation housing. The house owner without Title Deed will receive the compensation made as per the


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house replacement price. For the dismantled rural housing, the compensation will be made in cash as per the replacement price of the same floor area plusing the price of housing land, while for the dismantled urban housing, the cash compensation will be made as per the replacement price or exchange the house property right. If the dismantled are not satisfied with the compensation standard for housing removal, they can commission the professional agency to assess the property, and the result of assessment will be the compensation standard of housing removal.

Permanently Influenced Enterprises

There is totally 1 enterprise, with the floor area of 5300m2, involving 90 persons. The owner of the influenced enterprise will receive cash compensation or the enterprise will be rebuilt in other places. All the owners of the business buildings before the date of the publication of the project construction, which are either the buildings without certificate or the extended temporary buildings, should receive compensation. For the dismantled buildings, the cash compensation should be made as per the policy of Bengbu. And the influenced enterprises will receive subsidy for relocation.

Public Facility

As the attachment, the influenced will receive cash compensation. The influenced collectivity will receive cash compensation or repairing. For the attachment on the ground of the expropriated land, compensation should be made in the replacement price in cash or repairing should be made till the ground is resumed to its previous condition or a better condition, and for the dismantled the buildings, cash compensation should be made in the replacement price of the same floor area.

12.1.9 Sub-project of Wuhe County

（1）Land Occupancy and ExpropriationThe World Bank project in Wuhe County only involves the expropriation of rural collectively-owned land and there is no demolition. The rural collectively-owned land expropriated by the sub-project of Wuhe County is used for the work of the surface water treatment plant of Mohekou Town and the sewage treatment plant. Totally 2 villages, with 101 households and 420 persons, are influenced. The collectively-owned land expropriated is 139.69mu in area.

（2）Compensation BudgetThere is only the compensation cost for permanent land occupancy in the total budget.


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The total resettlement budget is RMB573,200 and it is the compensation cost for the permanent land occupancy.

（3）Conclusion Rural Collectively-owned land

The land compensation will be paid to the rural collective organization from which the land is expropriated, and the money will be used for developing the production and settling the life of the peasants. The labor settlement subsidy will be paid to the farming persons who need resettlement and the settlement and reception agencies. The land contractor will receive the young crops compensation and labor resettlement subsidy.

12.1.10 Sub-project of Xijiagou

（1）Land Occupancy and ExpropriationThe influenced scope of this project: the high-tech area of Xijiagou project; 2 villages in Yanshan County, 1 village in the high-tech area and 4 villages in Qinji Town are influenced by the Yinhe water system control project of the high-tech area; and totally 2 villages in Qinji Town and 1 village in Changqing Town area influenced by the Baligou control project.

There is 440 mu expropriated rural collectively-owned land in the sub-project of Xijiagou.

（2）Compensation BudgetIt includes 3 costs of the compensation cost for dismantling rural collectively-owned land, the compensation cost for dismantling rural residential housing and the compensation cost for the influence infrastructures.

The total budget of this project is RMB39,656,800, including the compensation cost of RMB30,176,500, accounting for 76.1 ％ ; the compensation cost of RMB3,761,700 for dismantling the rural residential housing, accounting for 9.5%; and the cost of RMB248,003 for the illegal buildings, accounting for 0.6％.

（3）Conclusion Dismantled Rural Housing

According to the compensation and resettlement policy for the housing removal of this project, two ways of compensation and resettlement are adopted, namely, the cash compensation and the exchange of house property right. The resettlement can choose the way of compensation and resettlement that fits their economic condition and individual demands. Where the cash compensation is chose, the compensation shall be determined as per the assessment price of the


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local real estate market with such factors as the location, usage and floor area of the dismantled buildings taken into account.

Collectively-owned land

The compensation for land expropriation includes the land compensation, resettlement subsidy and the compensation for ground attachment and young crops.

12.2 Social Impacts

12.2.1 Social Influence Analysis and Prevention Measures in Construction

12.2.1.1 Analysis of Influences on Residents’ Life

During the construction, due to the excavation of ground, there will be flying dust when piling the earth and there will be more inhalation particles in the air, thus the surrounding residents and passers-by would be harmed in health.

There are many fuel equipments and power machines in the construction area, the noise of which is disturbing. The living quality of the residents is lowered.

It is inevitable that the construction would occupy road and greenery area, which will ruin the landscape and lower the traffic capacity of the road. And because of this, the local residents have to reroute their usual path whenever they go out, which is very inconvenient for their life.

For the construction of large scale project, there will be at least one or more construction sites. Because of the entering of the construction workers, there are not only more wastes and garbage, which pollute the environment, but also many diseases are easy to be spread since the sanitary condition in the sites is not good, so the health of the surrounding residents are threatened.

The management of the construction site would not be good since the people in the site are large in number and complex in constitute, and in addition, the people come and go frequently due to the supply and demands of construction materials as well as the living materials. There might be safety risks for the surrounding residents.

12.2.1.2 Analysis of Influence on Residents’ Life

During the construction of rain water and sewage pipe as well as the road, the most notable influence on the construction area is the influence on traffic.


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If the construction is conducted within the unfinished area, since it is farmland in the surroundings in most occasions, which is open, the construction would be conducted in full range in this area to promote the progress of the construction of the whole road or the complete network fast. Although the road within the construction area is not good, which has small traffic flow, the accessing of the construction vehicles won’t have notable influence on the traffic capacity of the surrounding road, instead, it will influence the road outside of the construction area greatly and add traffic pressure to the road outside of the construction area, namely, when the loading trucks carry gravels and sand and construction garbage out, the gravels or sand or garbage dropped and spilled out along the road would lower the levelness and flatness of the road and create harm and risk to the road as well as the vehicles that pass by. .

The size and load of the transporting vehicles are large, so it is inevitable that the vehicles will produce some damages to the road surface and the foundation as well, especially the over loaded vehicles, which have stronger damaging capacity. If the construction lasts long in period, there will be road repairing and economy loss.

Where the project locates at the center of the city or downtown area, the frequent passing of the construction vehicles would impose more pressure on the traffic which has been tense enough, making the downtown traffic more heavy and busy, especially at the rush hour, the traffic might be jammed when the idle condition of the vehicles lasts long and long-time horn of vehicle, thus the crowd would be restless and upset and the traffic order would be disturbed, due to which various traffic accidents are easy to take place.

According to the above analysis, the construction will not only generate adverse influences to the surroundings of the construction area, but also will bring some traffic and safety risks, affecting the social order and public living environment. Therefore, the management and control during the construction should be reinforced, the construction management system should be perfected, detail construction plan should be prepared, full consideration should be made to avoid the adverse influences and minimize the adverse influences to the society.

12.2.1.3 Prevention Measures

1 ． The traffic management department should reinforce the management and control of the construction area, make traffic distribution and rerouting plan according to the construction plan, and organize the traffic by utilizing the adjacent traffic network to the most, ensuring the residents’ daily life won't be disturbed.


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2．Before construction, the construction company should make sufficient and full preparation, have full understanding and investigation of the works in relation to the construction, and provide cooperation to the related departments to have all the emergency work be fully prepared in advance, ensuring the regular state of social life.

3． In order to minimize the influence the construction brings down to the life of the urban residents as well as the traffic, the traffic routes should be planned and distributed in uniform to avoid traffic jam, and inform the people in advance through such means as broadcast, television and newspaper.

4 ． There should be signboard erected at the construction site, on which such information as the works of the construction, time, name of the contact person and telephone number should be given, asking for the forgiveness from the public for the inconvenience caused by the construction.

5．The garbage produced by the construction of pipe network and road should be cleared and transported in time, and the road and the material field should be cleaned in time to free more the occupied land so that the residents can have free way to go out.

6 ． For the works that must be carried out at night due to the limit of the construction technology and techniques, there should be prevention measures and technical proposal for the construction at night. The low-noise equipments and machines should be adopted as much as possible. The light mechanical equipments or semi-manual construction should be used. The mechanic vibration should be reduced and metal materials carrying should be avoided. The unruly loading and unloading and noise making is forbidden. The height and location of construction lighting should not affect the surrounding residents.

7．When the water supply, drainage, gas supply and heating supply is affected by the construction, negotiation and coordination with related authorities should be made in advance to work out the emergency plan. There should be persons specially assigned for the site supervision and inspection to ensure the accident can be treated promptly at the time it takes place.

8 ． The construction company should reinforce the management of both the construction workers and the site, have each worker and the visiting person registered and checked, and strengthen contact with the departments of property management and residents committee, communicating information from time to time, to strengthen the safety of the construction site and eliminate the restless and antipathy feelings and worries of the residents.


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12.2.2 Analysis of the Social Influence after the Completion of the Project

12.2.2.1 Subproject of Huaiyuan County

1． Influence on Society and EconomyThis project is a part of the road network, rain water pipe network and flood prevention and drainage system in the urban master planning. When the project is completed, it is not only the road and pipe network system of the city oil and grains industrial base is improved, but also the flood prevention and drainage capacity of Chengguan Town is enhanced. Thereby, the pace of realizing the urban master planning is quickened and the goal of social and economic development can be achieved soon.

（ 1 ） The Traffic Condition of the Oil and Grains Industrial Base of Chengguan Town is Improved

The oil and grains industrial base of Chengguan Town is located in rural area. According to the urban master planning, Chengguan Town will be the industrial area of Huanyuan County. However, the undeveloped traffic of that place prevents the development of economy seriously. The road work of the oil and grains industrial base of Chengguan Town improves the traffic there greatly. Improving the investing environment and enhancing the capacity of economic investing will promote the economy of this area greatly. It will be convenient for the residents to go out after the completion of the project.

（2）The Flood Prevention and Drainage Capacity is EnhancedThe current rain water drainage capacity of Chengguan Town is weak. The drainage network is in broken condition and it is open channel in some place, furthermore, in some place there is no drainage system at all. The project will perfect the rain water network, enhance the capacity of collecting and drainage of flood, increase the buffer time of flood, enhance the capacity of flood prevention and drainage of the city, mitigate the damages brought to the property of people by the flood, guaranteeing people’s happy and peaceful life.

In a word, the completion of the project will greatly enhance the service ability of the urban infrastructure, improve the city environment obviously, fasten the urbanization of Huaiyuan County and promote the economic and social development of Huanyuan County.

2．Analysis of Influence on Urban Environment and Ecological Landscape

（1）After the road work is completed, the road greenery will be increased and reasonable arrangement will be made. The road greenery can protect the road surface, prevent the water and soil from losing, reduce the traffic dust and noise,


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adjust and improve the microclimate of road, thus improving the landscape along the road and beautifying the road.

（2）The appearance of a city is often learned first when people pass along the road of the city. The road greenery would enhance the beauty of the city and makes people feel fresh and natural.

（3）The dredging of hill pond enhance the capacity of flood storage, enlarge the water surface in area, and create the nature landscape. Meanwhile, the vegetation resuming work is conducted around the hill pond, improving the environment of the pond further.

（ 4 ） The perfecting of the urban flood prevention and rain water drainage network mitigates the damages the flood brings to the environment of the city.

（ 5 ） Plant is one of the element that creates the beauty of city. Varied and colorful landscape of road can be made by making use of the unique lines, shapes, color and seasonal variation of plants, and characteristics can be formed to match the road lamps, flower bed and dustbin through the different types of trees, blossom period and arrangement.

（ 6 ） The road greenbelt can decorate the city and foil the buildings along the road. Meanwhile, it can satisfy the residents living in the high rise buildings who want greenbelt.

To sum up, the project will increase the beauty of the city and make people feel comfortable when it is completed.

12.2.2.2 Sub-project of Huaishang District

The construction of the project may make the land lost people suffer some financial loss and affect the life of the residents. In addition to the adverse influence on the traffic and social security, the main influence the construction of the project brings to the social economy is the positive social economic benefits like promoting the economic growth and driving the development of the industry.

（ 1 ） The construction of the project requires the participation of the design institute, construction company, architecture company, transporting company, and construction material supplier. In addition, large number of construction workers should be employed, to whom living materials and social services should be provided. All of the work will provide more employment to the place and bring income to the companies, enterprises and the majority labor workers, thus promoting the development of the national economy.

（ 2 ） The project will play an important part in the social development and progress of Huaishang District after it is completed, which beautifies the environment, improves the living condition and health of people, brings


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investment, promotes stability and solidarity, has good social effects and lead the economic prosperity of the surrounding area.

（ 3 ） When the project is completed, the place where the project locates will provide the guarantee of flood prevention and good living environment. There will be good place for the citizen to have intimacy with the nature.

（ 4 ） Due to the large amount of investment on the project, the demand for materials. is increased, thus the production of related enterprises can be increased for producing the required construction materials like steel, building material and cement, which will be purchased at local area. Bengbu City and the surrounding enterprises will benefit from that.

（5）Since the construction of the project requires large number of labor workers, there will be more job opportunity and the income of the local people will be increased.

12.2.2.3 Sub-project of Guzhen County

The project will greatly enhance the flood control and prevention capacity of Guzhen County through works like reinforcing the embankment, dredging the drainage canals and building (rebuilding) the flood drainage station. The rate of the urban sewage collection is increased through the building of urban sewage network. And through the building of the main sewage pipe at the source place of drinkable water, the water at the water supply points of the urban water supply company in the planning can be prevented from being polluted, thus enhancing the operation condition of the urban water supply company. The remarkable social benefits the project brings to include the following:

（1）The increase of sewage collection rate creates a better living condition for the people of Guzhen County

At present, since the urban drainage system of Guzhen County is in confusion, furthermore, the drainage of most of the places is made separately; the quality of the water environment in the city is bad. After cleaning and control, most of the urban places will be covered into the urban drainage system, thus promoting the level of city infrastructure construction.

（2）Strengthening the protection of the source place of drinkable water to create advantageous condition for finding new water source.

At present, the water used by the people of Guzhen County is sourced from the underground water. The over exploration of underground water will cause the sink of stratum, due to which most of the places of China are looking for new water sources and it has become a trend that the surface water which meets the standard of drinkable water is adopted as the drinkable water. Currently, the


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water quality of the drinkable water source place can not meet the surface water standard of Type Ⅱ yet and the chief reason for this is the sewage discharged from the residential area and enterprises of the northwest part of the city deteriorates the water. The project will have the sewage of this area be led into the urban drainage system, thus improving the water quality of the water source and making the water source usable for the water supply company.

（3） Improving the landscape environment along the banks of the Sanba River and promoting the city image and living environment

The Sanba River is one artificially excavated riverway, which has been used as the sewage discharging canal. As a river that crosses the whole county, the water environment is low in level and does not meet the requirement of urban landscape. As the developing of the urban area, part of the residential district has been built or planned to be built along the banks of the river, and the requirement on the river landscape is higher and higher. After the rebuilding of the main sewage pipe network, most of the sewage in the urban area will not be discharged directly into the Sanba River, instead it is delivered through the sewage pipe to the waste water treatment plant(under construction), thereby the pollution of the Sanba River can be stopped to some extent and the biological self purification work of the river can be resumed, thus Guzhen can have a clean the Sanba River again. Along the banks of the Sanba River, slope protection work will be conduction, which will improve the landscape of the river further. The rebuilt banks of the Sanba River will be a good place for people to have recreation.

（ 4 ） The construction of project requires labor force and there will be more opportunities of employment

This project involves much in range, extends long in distance and requires large number of labor force for the construction. Because of this, the unemployment situation of this place can be relieved to some extent and the income of the local people will be increased.

（ 5 ） Enhance the overall urban construction level and it will be good for attracting investment

Anhui Province, as the undeveloped place in economy, is far behind the coastal cities and other developed area in urban construction level, especially some small counties. The progress of urban construction is slow as the main industry of this area is agriculture. Through this flood prevention and the comprehensive control of environment, the infrastructure will be perfected and the urban construction will be enhanced greatly, thus advantageous condition is created for attracting investment.

（6）The improvement of flood prevention capacity will mitigate the influence of the natural disaster


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The area along the Huaihe River of Anhui is the place where flood happens frequently and suffers economic loss incurred by the flood every year. Its special geological location is one of the reasons for this. But the loss can be avoided to the most by improving the flood prevention capacity. This project promote the urban flood prevention work to the standard that is able to meet the flood happening with a frequency of every 20years, the drainage of built urban area to the standard that is able to meet the flood happening with a frequency of every 10 years and the drainage ditch with the frequency of every 5 years. The improving of the flood prevention and control standard will mitigate the influence flood brings to the people and thus the people can have a safer living environment.

12.2.2.4 Sub-project of Wuhe County

This project will greatly enhance the water quality and sewage treatment ability of the industrial zone of Mohekou Town, improve the quality of the drinkable water supplied to the people of Mohekou Town, increase the infrastructure and promote the living standard through environment control and building pipe network, water purification plant and waste water treatment plant. The social influences brought by this project mainly include as follows:

1．Social Benefits

（1）Create better living conditions for people It makes the tap water supply be available in the rural area and the life of people become more convenient. The water environment of creeks and canals in rural area is improved after treating the waste water. The quality of the treated water is qualified enough for the agricultural production and thus the earnings of agriculture can be increased.

（2）It is favorable for the development of commercial trade of the industrial zoneThe imperfection of the current infrastructure of the place where the project locates restricts the development of commercial trades and affects the enthusiasm of the investors seriously. The implementation of the project will perfect the infrastructure, improve the investing environment, attract more investment, strengthen the confidence of the investors and promote the development of the commercial trade forcefully in surrounding area.

（ 3 ） The construction of the project requires large amount of investment, increases the demand for materials and can bring along the production of the enterprises


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Most of the materials required by the construction like steel, building materials and cement will be purchase in local place. Bengbu City and the surrounding enterprises will benefit from that.

（4）The construction of the project requires labor force and there will be more employment opportunities, thus relieving the unemployment pressure.

The construction of the whole project is planned to be conducted stage by stage, and the construction period will last 5 years, during which large number of labor force will be required, and thus the unemployment pressure will be relieved.

（5）The waste water treatment system reduces the facility and operation cost of waste water treatment of each enterprise, which is good for the construction and development of the industrial zone.

2．Adverse Social Influence Although this project is made for improving environment, the implementation of it will also bring some adverse influences：（1）After the waste water is controlled and treated, the enterprises will have to pay the added cost for waste discharge and water supply. The cost of production is increased.

（2）The cost of tap water is increased and the living expense of the residents is increased

(3) If the peasants abandon agricultural work and start new work without receiving sufficient vocational training in advance, it might be difficult for them to find a job. If they stay unemployed for long, there will be risks for social security.


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13Conclusions and Recommendations

13.1 Conclusions

13.1.1 Overall conclusion

13.1.1.1 Project summarize

Located in the middle and lower reaches of the Huaihe River Basin, Bengbu is an important industrial city and surface transport hub, but over the years by the Huaihe River flood discharge in the flood season, flood is frequent and the economy has suffered huge losses. Agricultural production and urban development have been affected to some extent and constrained.

Bengbu City is planning to use the World Bank loan for urban flood control projects and ecological construction. The project is divided into eight sub-projects, namely :

1. "Urban drainage system and drainage pumping station construction project"

2. "Tianhe flood prevention and control project"

3. "Xijiagou flood prevention management and environmental improvement projects"

4. "Longzi Lake flood prevention and waterlogging control and environmental improvement project"

5. "Huaishang District flood prevention and waterlogging control and the urban environmental infrastructure improvement project"

6. "Guzhen County flood prevention and ecological environment project"

7. "Huaiyuan County flood prevention and ecological projects"

8. "Wuhe County flood prevention and ecological projects"

Such as major construction projects involve, water projects such as the dredging of drainage pumping stations, flood control ditches and waterlogging drainage and so on. ecological control projects such as sewage pipe network, rain water pipe network, roads and bridges and other infrastructure projects, Longzi Lake dredging, ditches slope green and the restoration of vegetation and so on.


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Regions in construction projects include urban Bengbu, Huaishang District, Wuhe county Mo river estuary town, Huaiyuan County Chengguan Town, Grain and Oil processing district, Guzhen Town and the outskirts of the city.

Total project investment is 1.66 billion yuan. The construction period is five years, and the entire project is to be completed in 2012 and put into use.

13.1.1.2 Environmental background of Bengbu

Ambient air quality is at level 2 in Bengbu City. The main rivers in this area include Huaihe River, Huihe River, Wohe River, Huaihong New River, Cihuai New River, Beifei River and Mochong Diversion. Surface water bodies of the city are mainly the Tianhe River Longzi Lake, Zhanggongshan Pond, Xijiagou, and Baligou and so on.

The function of water body of Huaihe River in Bengbu is Class III. Water function of the Huihe River, simultaneously, and other tributaries of the river flow is Class III or IV category. Tianhe River water function is Class III, and Longzi Lake for the status quo is IV.

Bengbu City drinking water is from the Huaihe River. The inlets is 200 meters up the Bengbu sluice. It has one surface water factory with water scale of 400,000 tons / day, and the status quo of the northern Huaihe River bank is that groundwater is the main source for supply water.

The city has one sewage treatment plant at the west side of Xijiagou, with designed scale of 200,000 tons / day, and now it is in normal operation of 100,000 tons/day.

The old urban area of Bengbu has been formed stormwater drainage system for sewage diversion system, but in western city Baligou area, the eastern area of Longzi Lake in eastern city and southwestern region of the city have not yet formed drainage network. Rain drains into the river through surface water body and ditches in the end.

Now city drainage in Bengbu urban area is mainly through drainage pumping stations and from the natural drains at the shore of the Huaihe River, However, the flood water level in the Huaihe River is relatively high in the flood time, making Bengbu City water can not be discharged. If there is a storm season, necessarily it leads to severe waterlogging. So to improve the drainage capacity drainage pumping stations is very necessary.

The other hand, the city of Bengbu has a large distribution of ditches and pond, and it is a natural way to use them for flood and waterlogging control, but because of serious pond sediment their storage capacity led to a massive reduction, witch is a disadvantage for flood control to reduce disasters. So when


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building drainage pumping station, the main canals and lakes dredging to improve the City Flood Control and Drainage capacity is extremely beneficial at the same time.

According to the Bengbu City's overall development plan and the "11th Five-Year" plan for environmental protection objectives, in 2010 it will achieve the urban sewage treatment rate to reach 70%. This sets higher requirements for city sewer network construction. The status quo of Bengbu urban sewage collection rate is about 70%, but the sewerage treatment rate is less than 30%. As building of a sewage pipe network at the same time supporting the building of a sewage treatment plant is imperative. It is the base to increase the rate of sewage treatment, to effectively control the total discharge of pollutants, and to achieve environmental benefits.

13.1.1.3 Project Construction Impact Analysis Conclusion

Project Construction Period

1. Construction noise is concluded basically in the construction industry plants within 100 meters. In this context the environmentally sensitive point and environmental protected targets will be affected by some noise to some extent.

2. Construction dust affected area will be within the 100 meters in the leeward area, after 4-5 times of the sprinkling a day, dust affected area will decrease within 50 meters.

3. Construction wastewater includes construction operations wastewater and living wastewater of builders in the construction area. Improper disposal of the surrounding water will cause pollution to the near water body, and in turn have adverse environmental impacts to the Huaihe river water. After sedimentation through sedimentation tanks set up at the construction site, the supernatant of construction work wastewater can be collected as dust sprinkler water and for construction techniques using, making the best to minimize outside water. Wastewater with sludge at the scene shall be not disposed arbitrarily and into neighboring channels, lakes and other water bodies. It can’t be discharged into the municipal drainage channels. Wastewater should be subject to municipal departments to process, or shipped to the disposal site assigned by the municipal departments. Integrated sewage water treatment equipment should be installed to treat the living wastewater in the, which can be disposed after treatment.

In principle, when having construction in the urban areas, towns, the wastewater of construction should be treated by sedimentation and then is discharged into municipal sewers, but no wastewater with sludge in it. In the uncompleted construction zone in rural or suburban area without such kind of sewers, construction wastewater must be grease trapped by precipitation and reach the


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discharging standard, then it can be discharged into the water body where allows the discharge water or sewers.

4. In accordance with the provisions related to environmental protection, various kind of Class III water wastewater must be treated to meet primary standard of Integrated Wastewater Discharge Standard before into Huaihe River. Into the Wohe River, Huihe River and stream tributaries of the Huaihe River, the sewage must be treated to secondary class emission standards. The waste water discharge standards and the means of discharging are in strict in accordance with the requirements of environmental protection departments for the implementation of the relevant provisions. According to the Municipal Environmental Protection Bureau, Tianhe Ricer, as Bengbu City emergency source of drinking water, no any sewage and wastewater can be discharged into it. Remnant water of the yard for Longzi Lake dredging should reach primary standard of Integrated Wastewater Discharge Standard.

5. Major water pollutants of the yard for Longzi Lake dredging are ammonia nitrogen and the SS. To make the yard remnant water reach the discharge standards, effective measures must be taken to decrease the concentration of the pollutants in the water, and it is proposed to increase the water retention time, increase coagulant and use other kind of methods.

6. The sludge dredged from lakes and ditches pond will not only occupy large tracts of land, but also make the groundwater and surface water polluted. Sludge disposal ways are closely related to its components. By monitoring various urban and suburban sewers and lake sediment sludge, the EIA content get to find that the contents of all urban Bengbu pond sediments are close the same. And the heavy metals in the sludge were not overweight, and meet the "soil environmental quality standards" and "agricultural sludge pollution control standards", but because of no comprehensive monitoring indicators, without excluding the results of chance, it is not entirely proven that the sludge is harmless. In order to avoid farmland and crops pollution, thus endangering the health of the population, it is not recommended for dredged sludge to be discharged into agricultural land in this EIA. After being dried naturally sludge can be back for woodland, green belt, mountain habitat sculpture made, or can be used as backfill for the site formation.

Xijiagou accepts wastewater for a long period because of the sewage it accepted, most of which are industrial wastewater and sediment complex. Although it dose not exceed the third class standards of Soil Environmental Quality, the sludge has higher mercury content which is higher than the soil background values of Anhui province 2.2-2.9 times. Together with large amount of organic ingredients, which can easily lead stench, it is not appropriate to be used in human crowd and frequent contacting region. It is best to make them digest in the region


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themselves. Once it is used as roadside greening purposes, it is better to try to make the project earthwork balance and avoid disposing outside.

Project Operation Period

In the project running period, major pollutions include the running noise from drainage pumping stations, road and bridge traffic noise and car exhaust pollution, and tail water from Mohekou town sewage treatment plant, sewage plant odors, and the remaining sludge disposal and so on.

1. When the pump station is completed, it will be in short-term use instead of in continuous use, and generally is needed only when it is in flood period. The impact area of pumping station operating noise should be controlled in the first class type by the implementation of the Regional Environmental Noise Standards" (night 45dB (A), daytime 55 dB (A)) for the 220 meters at night, daytime 70 meters. In this context the environmentally sensitive point and environmental targets will be affected to some extent.

2. The proposed road noise impact is closely related to road traffic, road grading, day-traffic flow and model rate of traffic. In this project, roads only have the total traffic flow, not related to day and night and no model rate, so it is not possible to make environmental impact analysis for the proposed road traffic noise and vehicle exhaust.

According to information analogy, usually red line width of 40 meters in the city roads, its noise impact on the road outside the red line is 50 meters on day time, and 150 meters at night. Automobile exhaust pollution impact on the hard shoulder outside is within 20 meters.

3. In the Mohekou Industry Park area surface water factory operation period, the noise impact distance is within 10 meters from the production structures and in the water purification plant the noise emission meet the standards. Sludge production is 9 tons / day, the moisture content is 80%, and the main part of the sludge from the water purification process is silt and flocculants, which part can be considered as fertilizer for farm.

4. In the Mohekou sewage treatment plant operation period, sludge production is 14.3 tons and water content is 80%. For the high proportion of industry wastewater in the water treated by Mohekou sewage treatment plant, most of them are fine chemical industry wastewater, so sewage treatment plant the residual sludge is complex and is more likely to contain harmful toxic substances and heavy metals pollution. The EIA recommend that the park's sewage plant sludge should be shipped to the city landfill for disposal harmless, no return for farmland and drains green slope to prevent pollution of soil and groundwater.


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Smelly materials from the sewage plant are mainly H2S and NH3. The impact distance is 200m.

Emissions of tail sewage plant water implements Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002) in a first class A standard, through Sanpu Lake drainage stations diversion canal into the Huaihe River. From the predicted results of the environmental impact, we can see that COD concentration of water in outfall 200m downstream can meet the features standard requirements of water environment. COD concentration at downstream 1300m place can be achieved background concentration. Tail water from Sewage treatment plants of Mohekou into the river, can cause water pollution of the Huaihe River at sewage outfall downstream of 1300m.

13.1.1.4 Project Environmental Benefits

The major environmental benefits of this project reflect in the volume of emissions control to the Huaihe River, and the environmental benefits created by Mohekou Park sewage treatment plant.

1. According to 2005 statistics, in 2005 the total Bengbu City sewage is about 141.47 million tons / year. Urban sewage treatment capacity is 25.55 million tons and industrial waste water treatment capacity is 16.89 million tons. The concentrated sewage treatment rate is about 30% and the ratio of domestic wastewater to industrial wastewater is 3:2.

In Bengbu City, sewage water is mainly emitted through 7urban sewage outfalls. In 2005 total outfall drainage of seven major is 107.74 million tons / year, in which Xijiagou, LongZi Lake, Baligou displacement are the biggest one. In the western city Xijiagou, Baligou accept the industrial waste easily. In the eastern city Longzi Lake accept living sewage water mainly. The local sewage pipe network has basically taken shape between Xijiagou and the Longzi Lake, but it is in the lack of network connectivity. The network has not yet matured between east of Baligou and west of Longzi Lake, and the project of urban drainage works will focus on the region to build pipe network and the renovation and expansion of convergence. The pipe network construction in the Longzi Lake industrial park, new high-tech zones and part of uncompleted pie network is to raise Bengbu City sewage water collection rates.

Now, in Bengbu City, only Xijiagou area has the No.1 Sewage Treatment Plant, so industrial and domestic sewage effluent in Xijiagou area are basically treated in the sewage treatment plants and then drained to Xijiagou, although Xijiagou area has the largest sewage, a lower concentration of pollutants is showed in the water. Discharge in Longzi Lake and Jiaotong Road area is less than Xijiagou, however, it has the higher concentration of the pollutants. Drainage network in


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Baojiagou area has not yet formed. Sewage collected by the natural drains is extremely limited, but at the same time its wastewater pollutant concentration is relatively high, showing that perfect urban sewage pipe network construction is very necessary.

The project, when completed, will make an interface and adjustments to the status quo relatively fragmented drainage system. According to the plan, in 2010, it will create a more focused drainage system.

2. According to Bengbu city development planning and drainage plans, By 2010, Bengbu City's sewerage system will have been divided into four drainage system, which includes Xijiagou sewage system, Yangtaizi sewage system, northern Huaishang River sewage system, and south city sewage systems as a network. The total sewage can get to 494,100 m3/d. These sewage treatment plants will be completed in 2010 and put into use. South City Sewage Treatment Plant is has been planned to be built in 2020, but in order to be in line with the construction of World Bank's project, South City wastewater treatment plant will be completed in 2012.

Without matching increase in the sewage treatment plant construction after city drainage projects completed, the increasing in sewage and the concentration of outfalls may lead to the pollution discharged into the river much higher than the total volume of emissions in 2005 and to the adverse environmental impact in the river water. According to the EIA forecast in the near future if only to maintain the status quo Xijiagou 100,000 tons / day of processing capacity before 2,010, then, in 2010, with an increase to the amount of waste water, it will get to 1.68 times higher than in 2005 while the pollutants discharged into the river COD and ammonia emissions will rise to the 1.87 and 1.80 times to the status quo in 2005 respectively.

If in 2010 the planned Xijiagou sewage plant is to be completed 200,000 tons / day, Yangtaizi sewage plant 100,000 tons / day, North Huaishanghe sewage plant on a 25,000 ton / day, and they are in a full operation, in 2010 the sewage volume is 70% increase compared to 2005. The pollutants discharged into the river COD emissions will be basically the same to the status quo in 2005 on the total amount (increased by only 6.2 %), and ammonia emissions will decrease by 9.3% compared to 2005.

According to the EIA forecast, in 2010 if all the planning sewage plants will be completed and put into use, urban sewage can all be treated effectively, then the influenced distance of Bengbu City sewage into the river is within 2.4km from the Mohekou section downstream (32.5km downstream from Bengbu sluice), and the quality of the Huaihe River will be under control in the scope of Bengbu area. The forecast results indicate that if each sewage plant can ensure the emissions


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standards, the increase in the volume of sewage discharge will not have environment obvious adverse effects to the river downstream water.

If accident emissions happen in the sewage treatment plant, it will increase the river's pollution levels and risks. According to the forecast, if sewage treatment plant can not get an effective sewage treatment, up to standard, the COD pollution influence will be increased from Mohekou section to 57km downstream water (87km downstream from Bengbu sluice). Ammonia pollution from the estuary will be increased from Mohekou section to 67km downstream. (107km downstream from Bengbu sluice). It visibly will have significant impact on the lower reaches of the Huaihe River.

In summary, the city pipeline project with the construction of sewage treatment work, is the basic way to achieve the fundamental environmental benefits.

3. In the Mohekou Park sewage treatment plant project, the increase of strength of Mohekou town park construction and attraction of investment will make estuary town of sewage rapidly increase in the planning year. The wastewater collected by the pipe network and discharged into the river will increase the receiving volume of Huaihe River. So the park's sewage plant construction operation is bound to reduce the pollutants discharged into the river total. According to the EIA accounting of the park's sewage plant, pollutant abatement proportion of the total COD reduction is 50%, and ammonia reduction is 66.7%. Tail water Mohekou sewage plant discharges into the Huaihe River will lead a certain degree of pollution from the outfall to the downstream 1300m within the scope of the Huaihe River water.

13.1.2 Program evaluation findings

13.1.2.1 City drainage Project

Regional distribution of construction is in Bengbu the Old City, high-tech zones, Dragon Seed Lakes Industrial Park. The main contents of the building include 4 pump stations, rain sewage pipe network and three sewage upgrade pump stations, and the new district road as the three parts of the contents. The total project investment is 388.9387 million yuan, and the construction period is four years, in preparation for full operation in 2012。The status of Bengbu urban stormwater drainage is through various drainage ditches and with the surrounding surface water bodies into Huaihe River. While the drainage system in old city district was basically completed, but there are still some sections of connectivity which is not complete, therefore, it is necessary to connect the stormwater drainages in these sections with the pipeline network to form a complete drainage system. So that part of the contents of construction is


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basically renovation and expansion project. The pipelines dispersed widely, so the project work is not large, but due to many environmentally sensitive points in this construction period, the impact construction is heavy.

The proposed high-tech development zones and Longzi Lake Park stormwater pipeline are new projects. The meaning of the construction is to collect the wastewater from west Longzi Lake area and west Baligou area in high-tech zones into the southern city sewerage system of sewage. In the long-term management of wastewater plan, this part of wastewater collected from network will enter the planning southern city sewage treatment plant, which makes a fundamental condition for achieving long-term goal sewage treatment rate reaching 70%.

The proposed four drainage pumping stations project is basically renovation and expansion projects. The plans is the original pump station expansion alterations or upgrading of equipment to improve its drainage capacity for flood control, strengthening old Bengbu City flood season safety. In the Longzi Lake Park, high-tech zones in the region, roads and the construction of pipelines are basically new projects, and it mainly improves the infrastructure construction of the area.

The main influence in the construction period is the construction noise and construction dust. Dust from the impact of the construction is 100 meters outside of the construction border. Through frequent watering it can affect the impact scope and makes it within 50 meters. The influence distance of construction noise is within100 meters from the outside of construction factory site on daytime. Construction spoil should be backfilling in priority. Once it is used as roadside greening purposes, it is better to try to make the project earthwork balance and avoid disposing outside.

When projects completed and put into operation, the main environmental problem is draining the running noise impact and the influenced distance is 70 meters for daytime, and night of 220 meters. In this context the environmentally sensitive point and environmental protected targets will be affected by some noise to some extent.

Major solid waste in the operation period is from the waterlogging pump station gate residue. Each year about 3,000 tons drainage station gate slag will be produced. Part of the gate residue will be handed over to sanitation departments and treated together with living garbage.

Under the condition of strengthening construction management and the implementation of environmental protection measures, the project of building will lead little impact to the surrounding environment. Major social benefits of the construction projects are perfecting environment for infrastructure construction, improving drainage capacity in the urban area, the promotion of high-tech zones and Longzi Lake Park on the overall development, enhancing the city's flood


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control and drainage resilience capacity, and improving the living quality of city residents for the realization of long-term overall planning, environmental planning objectives of 11th Five-Year Plan to lay a solid foundation.

13.1.2.2 Tianhe drainage station construction project

Analysis of impact in the construction period

Pollutants emitted are mainly concentrated in the construction period. The water pollutants include living sewage and manufacturing wastewater (oily waste water, sludge and waste water drainage pit) in the construction area. the main pollutants in domestic sewage is COD and its highest emissions is 20 tons / day. The main pollutants in manufacturing wastewater is the SS. Atmospheric pollutants are mainly construction dust and construction machinery and transport vehicles’ fuel emissions, which are not quantitative intermittent emissions. The highest living garbage production is 0.34 tons / day. The source of sound environment impact is from construction machinery and transport vehicles which produce the mechanical noise. The noise is about 75 to 105dB (A) 1m near the mechanical equipment.

Wastewater of construction after precipitation is all back to the construction site as possible, reducing the volume of wastewater discharge. Construction living sewage collection should be collected together and treated in sewage treatment facilities to meet the first class emission standard and then discharged into the river. Various of construction wastewater is forbidden to be discharged into the Tianhe. As the construction period of less sewage, the treated wastewater into the river water will not cause significant adverse environmental effects.

Operation Impact Analysis

In the operation period of the project, the main pollutant is Tianhe Drainage Station operating noise, which standalone operation noise is 75-85 dB (A). Wastewater discharge is produced from the Tianhe Station sewage. Solid waste discharge is mainly from Tianhe gate station slag and the lives of the workers.

In the operating period, Tianhe station operator will create noise source about 90-100dB (A), and the influenced distance is about 220 meters at night, daytime 70 meters. It will mainly have some impact to the pumping station management district workers living and working on the 80 meters northeast pumping station some. The neighboring villages are affected little.

In the operating period wastewater is mainly from living wastewater of workers in Tianhe wastewater pumping stations and road drainage. The volume of living wastewater is 7.65m3 / d, and it will be pretreated by septic tanks and package treatment facilities to achieve first class emission standard and then is discharged into the Huaihe River.


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The main solid waste in pumping station in the operator period is the gate slag and the living garbage of workers. Gate slag production is 3,600 t / a (60% water content), in which leaves, twigs, grass, fiber and other floating objects are the main waste. The production of living garbage is 0.8t / a, solid waste will be shipped to the garbage collection and transportation systems, handled by the sanitation department.

13.1.2.3 Xijiagou projects

Pollutant emissions

Pollutants emitted are mainly concentrated in the construction period. The water pollutants include living sewage and manufacturing wastewater (including manufacturing wastewater and the trickling water of the dredging sludge) in the construction area. The main pollutant in domestic sewage is COD and its highest emission is 50 tons / day. The main pollutants in manufacturing wastewater is the SS. Atmospheric pollutants are mainly construction dust and construction machinery and transport vehicles’ fuel emissions, which are not quantitative intermittent emissions. The discarded soil is 375000 m3 /d. The highest living garbage production is 0.25 tons / day. The source of sound environment impact is from construction machinery and transport vehicles which produce the mechanical noise. The noise is about 75 to 105dB (A) 1m near the mechanical equipment.

Construction impact

The main impact is operations wastewater, excavation and dredging silt water seepage and construction living sewage on the water environment. The main pollutants in construction operations wastewater and seepage water is the SS, which is discharged into upstream of Baligou and Xijiagou rivers after the construction site settling tank. After sedimentation in septic tank, life sewage is discharged into Baligou and Xijiagou rivers. As the construction period of less sewage, the treated wastewater into the river water will not cause significant adverse environmental effects.

The major impact on the atmospheric environment in the construction period is the dust, fuel emissions and stench of sludge to the environment. The impact from construction bulldozers dust is 150m, and the road dust is 35-40m. The effect of odor is 30m from the leeward wind. Environmental protection measures can slow the impact and scope.

The impact of sound environment is from the noise of construction machinery and transport vehicles. While construction works in the factory sector meet Noise Limits for Construction Site standard, on this premise, average noise influenced


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distance throughout the construction phase is 100m at daytime, but it will reach 350m on piling phase.

The ecological environment affects in the construction period in the area include ground occupation, soil erosion and the impact on biological aspects. Construction area covers about 1,300 acres, of which Baligou marsh land banking project covering 840 acres. Xijiagou bulldozers project covers a total area of about 450-500 acres. If the project does not take water and soil conservation measures, the amount of soil erosion is about 860-890 tons / year. The impact of biological performance in the short run to the river is to the number of benthic organisms. The impact to the vegetation on the occupied land and construction dust falls on the leaves of the surrounding vegetation will affect their normal photosynthesis.

Environmental Benefit

The environmental benefit of the operation of the project is primarily reflected in Baligou and Xijiagou water environment improvement. After quality improvement it will play a role to promote the ecosystem in a virtuous cycle. The quality improvement of Baligou and Xijiagou rivers provide the prerequisite and guarantee for the Huaihe River water quality to meet standards. After the regional environmental improvement, the urban landscape, the face of the city skyline and the surrounding environment quality will be improved significantly.

13.1.2.4 Longzi Lake Project

Pollution Sources Analysis

The main pollutants include water pollution, air pollution, noise and solid waste created in the construction period. Water pollutants include trickle water of dredging works, about 2396m3 / d. The total volume of a small number of construction operations wastewater and construction staff living wastewater is about 25,200 tons. Atmospheric pollutants mainly include construction dust and a small number of construction machinery and transport vehicles fuel emissions. Construction machinery and transport vehicles from the mechanical noise is the main source of sound environmental impact, and 1m away from the sound source the noise value is 70-100dB (A) while these mechanical equipment running. Solid waste includes dredged sludge 1150000 m3, the building construction site residues, material and about 126 tons of daily garbage created by construction staff.

The main pollutant of the Longzi Lake in the operation of the project period during pumps running in the flood pumping station is the mechanical noise. Its stand-alone operation noise is about 75 ~ 80dB (A).

Construction impact


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Construction major impact is from the southern Longzi Lake for dredging and Longzi Lake Pump Station project.

Southern Longzi Lake for dredging project has the major environmental impacts of the over water discharges on water environment, stench caused to the atmospheric and environmental impact of dredging on benthic creatures. According to the EIA forecast, TN and TP influenced scope on Longzi Lake water quality is about 600m. Under normal circumstances TN and TP contribution at a distance of about 450m away from the outfall is lower than the concentration of Environmental Quality Standards for Surface Water Ⅲ-class water quality standard. Under abnormal circumstances, TN at a distance of 550m away from the outfall mouth and TP at a distance of 800m away from the water outfall, contribution to the concentration are lower than the concentration of Environmental Quality Standards for Surface Water III-class water quality standards for the relevant provisions. The influenced distance of the stench from sediment yard is about 30m. Dredging works will cause short-term benthic creature numbers decline and after the project this influence will disappear. The types and quantities of river benthos will recover gradually.

The major environmental impact of Longzi Lake Pump Station construction period is construction machinery noise, dust and wastewater of construction. Daytime construction noise impact distance is 400m, but the distance at night is affected more than 500m. Daytime and nighttime construction will make adversely affect to the Xingfu Village on the east. The impact construction dust from is about 150m. Without effective measures, a dozen households in the village near the construction site will be adversely affected. Construction of wastewater by precipitation including wastewater containing suspended solids and a small amount of oily wastewater, wastewater containing suspended solids will be discharged into the river after sedimentation treatment. Construction living sewage will be discarded into the river after treatment through the of small integrated sewage treatment plant.

Impact in operation period

The major impact on the environment in the operation period is mainly the noise of operation compressor pumps and machinery of Longzi Lake pump station to the acoustic environment.

According to the most adverse forecast, the noise impact value from Longzi Lake pump station pumps to Xingfu village is 55.1 dB (A), and the noise impact value from the main pumps room is 43.1 dB (A). Because of high background noise in Xingfu village, it will lead to noise superposed overweight for Longzi Lake drainage pumping station running noise with the background noise and it will make adverse acoustic environmental impact to the Xingfu village at the east when the pump station is running. However, the pump station only is under


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running by the flood drainage, so the impact on the periphery of is short-term to its acoustic environment. In the actual operation, the extent and scope of the adverse impact will be less than forecast in this report.

Conclusion of environmental benefits analysis

The project total investment is about 265 million yuan, of which 3.7 million is for environmental protection, about 1.40% of the total investment. This cost is main for dredging project water treatment, yard grass and environmental monitoring. After completion of the project, Longzi Lake water and the ecological environment of the lakefront will be improved, and this will increase tourism revenue, reduce economic losses flood disasters lead. Its environmental economy is obvious for enabling the land value in the surrounding area to rise.

13.1.2.5 Guzhen County project

Project construction period

1. Ditch pond dredging and sediment transport process stench will have an impact on the surrounding environment. The process of digging in a ditch covered in the dredging project will be more obvious odor. 30m outside reaches a second level strength, a slight odor, and the stench below the limit of intensity (2.5-3.5 level). 50m outside, it is basic odorless. The dredging project on pond is mainly in the old side streets, where residents are more concentrated, and some sensitive points on pond outside are within 30 m, or even living in the ditch side. Ditch pond dredging will make them temporarily influence to a certain extent.

2. The project to build dams, flood control road construction, urban network projects such as the laying of the construction will cause dust pollution. Construction bulldozers dust in the affected areas is within 150 m. Road construction dust as unorganized sector sources, the highest concentration of it outside the border should be less than 1.0 mg/m3. Under the circumstances without sprinkler, the impact from the roadside is 50 ~ 100 m. Under the sprinkler circumstances, the impact distance is about 35 to 40 m. During the construction process, special attention is paid on the urban network construction, as most of the constructions are around city roads, and both sides of the construction site are crowded areas. In these sections of the construction process, particular attention will be paid to take measures and try to minimize dust pollution.

3. Construction noise impact on the environment is mainly in piling stage. Under the conditions to ensure that the construction site noise meets the standard, on piling stage daytime factory border outside 350m noise meets standards and the remaining phases of daytime factory border outside 80 to 100m outside noise meets the standard. The residents at a distance of 100m construction site will be


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affected by the construction noise, and the residents from the construction site within 350 m will be influenced by construction noise on piling phase.

4. The solid waste including: sludge dredging garbage, sediment for the ponds, the earth in the process of dredging ditches, the earth of excavation, the roots, aggregates and so on; The abandoned building materials at the pumping station renovation; The material loss in the process of transporting materials, including gravel, concrete, etc.; And the loss and desertion of paving stone, ash, construction materials in the road dressing stage.

The total ditch pond dredging is about 30,000m3, and the landfill site is located in the eastern town near the sulfuric acid plant, about 2.5 km from the Niushi Alley. The landfill was put into use in 2002, disposing of 150 t life solid waste.

The total river dredging earthwork excavation volume is 273,400m3, planning for local channels slope reinforcement. There is little impact on the environment for none outside earthwork in the entire dredging process.

Construction living garbage production is 1.5 t/d, timely delivery of sanitation sector to designated locations for disposal.

5. During the construction, site cleaning, pipeline laying, concrete modulation, construction and implementation of the installation works, will bring a certain amount of water and construction abandoned water. But the sub-item sewage emission is little.

6. Soil erosion analysis of the item

Possible soil erosion of the main construction phase is in the process of excavation for laying the ground pipeline, and bulldozers dredging. However, due to the implementation of the project belonging to plain areas, soil erosion is unlikely.

7. Traffic impact

Construction impact on the traffic is mainly on the impact of road traffic. Pipeline road construction to break road will lead to obstruct traffic, the earth moving stow obstruct traffic, and transport vehicles lead to the road traffic increases.

Operation Period

The main adversely affect in the operation period to the environment is the main drainage pump station noise and flood the roads wastewater.

1. Noise of pumping stations

The nearest environmentally sensitive point to the pumping station is the small furniture factory 10m east of Guxi drainage pump station. 10m from the pump


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station the noise has attenuated to have 40 to 45 dB (A), below the Measuring Method of Environmental Noise of Urban Area (GB - 1993) daytime 50 dB (A) the standard value, also reaches the night of 45 dB (A) of the standard value.

2. Flood road wastewater

The total discharge volume of pollutants in the surface water of the four flood dike roads, Huihe left embankment road, the Jiegou road, LiuYuangangou road and the Sanba river right embankment road are: COD 47.74 kg / d, BOD5 8.68 kg / d, oil 0.87 kg / d, SS 121.53 kg / d, TP 0.36 kg / d, TN 1.31 kg / d.

13.1.2.6 Huaiyuan County project

1. The project, when completed, vehicle emission pollutants of Chengguan town where it is foodstuff processing base is more than those of no project. This is mainly because the construction of road for foodstuff processing base from scratch, and the total length of road is 15000m and lead to increasing pollution load. However, by the analysis on the whole project, its overall benefits after completion is obviously greater than its environmental issues. Besides, automobile exhaust can also be reduced by taking other environmental measures such as restricting the traffic volume and driving speed, and planting green plants.

2. The road works project of Chengguan Town, one of thefoodstuff processing bases, can greatly enhance its traffic capacity and promote the development of public transport, save people’s traveling time, and help its promotion in economy as an industrial zone.

3. The City drainage Project on storm will clear the sludge from the flood discharge ditch and water storage ponds. At the same time distribution network will be improved, drainage pumping station will be new built or extended, as to integrated the city's drainage system and raise the city's overall flood control drainage capabilities. Therefore it can improve the environment of flood controlling ditches and water storage ponds, and reduce the threat level of flood damage to the city and the public. Although the drainage pumping stations will produce some noise when in operation, the affected area by the noise is small and can meet emission standards by damping and noise isolation protective measures.

4. There will build green belts on both sides of the road to the foodstuff processing base. While in the projects of the Luotuo Ridge and the pond in Chinese medicine Hospital there are the vegetation restoration work. So the whole project will increase the city green space for Huaiyuan County and thus improve the city's ecological environment, reduce the exposed soil of the area, improve the water


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conservation capacity, beautify of the urban landscape and increase urbanization speed and the people's living standards.

5. in the construction period, the engineering will occupy urban green land, and the construction dust, noise and so on will have adverse impact on urban social and ecological environment, air quality and noise at varying degrees. Therefore the evaluation here has suggested comprehensive measures for pollution control in the construction period. As long as managing strictly, taking prevention and mitigation measures, environmental impacts in the construction can be reduced minimal. Impacts in the construction period are temporary, most of the environment factors can be restored to the status quo level after the construction period ends.

6. In this project, public participation is serious and viable. Participants are all involved in voluntary. Public participation and the scope of the information in the media disclosed has provided the city public especially the affected agencies a convenient way to be aware of the project, and at the same time provided a good channel to know the demand of the public particularly the affected public's. In the public participation process, 100% of the public on this project are in a supportive attitude, which fully express the desire of improving public transport current status. The public has also fully realized the project possible environmental issues in the periods of construction and operation.

7. To ensure effective control and mitigation of the project’s environmental impact, in construction and operation phase it is necessary to do environmental management and monitoring s standardized and scientifically. Strictly implement the environmental monitoring program in the construction and the operation stage, and environmental management measures, and accomplish the environmental training to the corresponding staff.

In summary, the construction of urban transport projects and flood control, drainage projects in Huaiyuan County with the World Bank loan works with a master development plan. The implementation of the project will play a positive role on the city's rapid developments .The environment impact of the project in the construction period will be temporary. In the operation period, the flood prevention project has no environmental impact. While the pumping stations and traffic to the foodstuff processing base will have some impact on the surrounding environment. Through the corresponding mitigation measures, it can be reduced to an acceptable level. Therefore, as long as the project strictly implement the environmental protection measures in the EIA report during the construction and the operation period, this project is feasible.

13.1.2.7 The Huaishang District project


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Pollution Source Analysis

1. The wastewater in the construction process includes production wastewater and the constructors’ sewage. Constructors’ sewage production is 65 tons/d at most. The main pollution sources is atmospheric dust of the construction, machinery fuel emissions. The affected area is the construction site and along the road of transportation. The construction noise is from the pumping station, the road excavator, grader, roller, concrete layer machines used in road engineering. The construction solid wastes include construction debris, trashed soil in the construction site, silt and the constructors’ garbage.

2. In operation period, environmental pollution mainly comes from the running noise of the drainage pumping stations at Beifei River, gate slag at the station and the living garbage of the workers. Gate slag production is 6,500 t / a (moisture content of 80% -85%). Garbage, the production of 0.8t / a, is to be transported to garbage collection system, and to be dealt with by the Environmental sanitation department.

The main pollution of roads in operation comes mainly from car exhaust emissions, whose main ingredients are hydrocarbons, NOx, CO, vehicles noise, rain water pollution caused by road ground runoff.

Environmental Impact in the construction period

1. Construction dust is generally within scope of 100m to dust sources under wind direction. Sprinkler 4 ~ 5 times every day at the construction site conditions, its dust pollution scope can be reduced by the distance to 20 ~ 50m range.

2. At the construction site the main pollutant of the wastewater is SS. The proposed treatment method is natural precipitation, as to reuse the water for dust suppression sprinklers and concrete water conservation at the construction site. A small amount of wastewater unable to reuse will be discharged into a nearby water body after precipitation and meeting the emission standards. The sewage in Construction period is treated by small integration biochemical sewage treatment equipment. If it is directly discharged into the Huaihe River, it must meet Integrated Wastewater Discharge Standard of standard requirements of level 1.

3. The environmental impact of the construction noise is mainly piling stage. Ensure that noise at the construction boundary has met the standards. While at piling intervals, noise at 350m during daytime to the construction boundary should meet the standards, it is 80-100m outside the boundary during all the other stages. At a distance of 100m outside the construction site the residents will be influenced by the construction noise, while at a distance of 350m outside the construction site the residents will be influenced by the piling noise.


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4. In the construction site, trashed silt and garbage are collected and handled by the environment sanitation department. It is prohibited to pile them in the coastal water bodies, to contaminate of groundwater and surface water body.

Impacts in Operation

1. When Roads are built and used, moving vehicles exhaust pollutant emissions of major pollutants for CO, NOx, CH. The affected distance is 20m to the road.

2. The main pollutants in road rainwater are SS, COD. Their concentration of pollutants reaches the maximum in the 0 to 15 minutes, and then reduced gradually. The water quality stabilized after an hour of raining. Therefore road rainwater collection system should be enhanced to avoid the surrounding water pollution risk.

3. When the Pump Station starts in flood season, noise at the distance of 10m is about 55dB, meets standard Class 2of Measuring Method of Environmental Noise of Urban Area (GB - 1993). For new roads, noise affected distance is 30 m outside the red line of the road.

4. In the operation period of drainage stations the total amount of the gate slag 6,500 t / year (moisture content of 80% -85%). The Staffs’ annual garbage production at the pumping station is 0.8t / a. It should be dealt with by sanitation workers.

13.2 Suggestions

13.2.1 Mohekou Park Project

In Mohekou Town industrial park, there are all industrial projects, and more concentrated. Without enough self-examination and park management capacity constraints, the products and most of the raw and auxiliary materials for the chemical raw materials or chemicals, inevitably leaks. It is usually a certain phenomena. In the storm season, a lot of the early rain runoff may contain a certain amount of chemical raw materials and reagents, and the production of untreated wastewater in a short period of time can not be effectively turned into the park sewage pipe network, it flow directly into the river via the overland flow, because of its complex contents and outfall near the Huaihe River, with no buffer facilities, the early part of the straight flow of rainfall into the river is more likely be water pollution risk generated.

To reduce the Mohekou water pollution in the chemical park estuary of the river and decrease the risk of pollution to a minimum, the EIA program design consideration to the early part of rainwater collection and disposal problems.


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It is suggested to locate early rain buffer pool in the park, in order to conduct the initial rainwater collection and temporary storage, accordingly pipeline and the construction of rainwater collection will initially enter the sewage treatment plant for effective treatment.

Within the park, there are chemical industrial enterprises and special sewage water differs from a general sewage, water quality analysis of the sewage plant influent should be done and appropriate and effective treatment process should be introduced to ensure that the sewage plant effluent discharge standards. Taking into account of poor circumstances the effect of pretreatment enterprises, the wastewater treatment plant influent water quality and abnormal fluctuations. the Process should have some adjustments and the ability to shock.

Sewage plant tail water eventual destination is the Huaihe River. Once the sewage plant does not operate properly, tail water discharge will seriously affected the water quality of the Huaihe River. Therefore, the sewage treatment plant design recommendations consider many contingency plans, such as: water supply, electricity, water influent volume anomaly, flood control, no standby equipment failures and so on. In particular, the incident occurred when a corresponding emergency treatment measures sewage plant to reduce non-normal condition of the adverse effects of the Huaihe River.

13.2.2 Xijiagou projects

According to Bengbu City Drainage Planning (2005 ~ 2020), the project is located south of regional sewerage system. In the South Sewage Treatment Plant planning completed in 2020, Xijiagou sewage treatment plants have been operating close to capacity. Thus, when Xijiagou, Baligou river improvement project is finished, the sewage in the south of Tushan Road is still no reasonable way to proceed. Although the river training works will be completed and Baligou and Xijiagou along the outfall for money-blocking, but the film in the region of untreated sewage will continue through different channels and ultimately into the seats of Xijiagou and Baligou, eventually the Huaihe River flows. Therefore the item on water environment improvement role will be greatly reduced, would not achieve the desired results. Therefore, the construction of the Bengbu City sewage treatment plant should speed up.

The EIA projects proposed in the construction of this project, start Chengnan sewage treatment plant construction projects. When Xijiagou and Baligou river training works finishes, while wastewater treatment plant has not yet completed, temporarily wastewater in the region take a seat in Xijiagou sewage or Yangtaizi sewage disposal system.


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13.2.3 Longzi Lake Project

1. Dredging should strictly control Dredging depth, avoid Dredging Project on benthic sediments and submerged plants root which will cause serious damage.

2. Revetment natural and ecological revetment combination of the Longzi Lake along the berm for dressing, avoid the use of hard revetment and cutting surface ecosystems, affecting Longzi Lake coastal ecological environment.

3. Ensure the Dredging works results to the implementation, we recommend Lake coastal wastewater emissions control from the production, for the heavily polluting enterprises move out as soon as possible.

4. After completion of this project, it is strictly prohibited random grab for aquaculture around Longzi Lake to control the impact of agricultural non-point source pollution on the water quality of Longzi Lake.


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Documents

PEOPLES’REPUBLIC OF CHINA - World Bank€¦ · Web viewAnalysis of acoustic environmental impact. 136. 7.2.3. Analysis of water environmental impact. 139. 7.2.4. Impact of solid