National Policies and Programs on green

development, resiliency to climate change and

natural disasters, and designs of low cost

buildings/schools towards sustainable urban

development and green economy in the

Philippines

By: Engrs. Edilberto L. Paradela and Juan Edgar E. Osorio

DEPARTMENT OF SCIENCE AND TECHNOLOGY REGIONAL OFFICE VII Presented during the National Workshop on Sustainable Urban Infrastructure

Development in the Philippines on September 10-11, 2014, Dusit Thani Hotel, Makati

City, Philippines

THE PROJECTS/

PROGRAMS

Initiatives of Green Growth Development in the Philippines: Integrated Storm Water Management (ISWM)

Project in Cebu, Philippines

- Cooperation between Water Security Section of

ESCAP and the Department of Science and

Technology Region VII (DOST VII) to promote

awareness and advocacy on eco-efficient water

infrastructure development. The key other partners are

KICT and EREDE.CO.,Ltd..

PHASE I:

“INTEGRATED STORM WATER MANAGEMENT

IN THE PHILIPPINES: DOST VII SYSTEM”

Objective of the Project

Strengthen the capacity of government officials in

Region VII, Philippines to promote eco-efficiency of

water infrastructure

Key Outputs of Project

• Establishment of a model on integrated storm

water management system in DOST VII.

• Development of a replication strategy

• Improved capacity building through trainings and a

workshop

Flowchart of the ISWM System in DOST VII, Cebu Philippines

Major Components of the Cebu ISWM Facility

Rainwater Collection. Rainwater from roof and storm water

from porous surface of roads.

Primary Rainwater Treatment (Green Filter). First

flushing; initially removes contaminants/pollutants.

Micro-membrane Filtration System (MF System). Micro-membranes to reduce microbial and particulate pollutants.

Integrated Rainwater Administration System. Wireless

monitoring devices, controllers for pumps/valves, server.

Rainwater Drainage against Overflow. System to divert or

send excess water to outside drainage lines.

Reuse Water Treatment System. Uses advance biological

treatment processes that eliminate organic and nitrogen compounds.

Chlorinator. Basic chlorine treatment system for treated grey

water to further remove contamination.

The Micro Filtration System in the Machine Room of the ISWM System in the DOST

7 Building, Lahug, Cebu, Philippines

System components (pumps, tanks, piping, computers, data acquisition and control,

remote administration system etc) of the ISWM System Machine Roomr

Plants and crops watered through the ISWM system.

Issues on Water Quality and

Infrastructure Development in Cebu

Over-extraction of Aquifers. Saline wedge movement into

mainland where chloride level now exceeds 500 mg/l .

Urbanization and Increasing Demand. Decrease in recharge

capacity, rapid increase in demand, wastewater generation.

Non-utilization of Rainfall. City created laws requiring new

buildings to construct cisterns, but these are not used.

Untreated Discharge of Sewage. No proper sewage treatment

systems in the City and sewage dumped into rivers.

Flooding. When rains come, flooding is experienced in low lying

areas of the city and near rivers.

Expected Outcomes

>The IWSM system contributes well to developing

resilience to climate change and urban flooding.

> It provides clean water.

> It prevents flooding.

> It treats waste water.

> The ISWM system is a good teaching tool for

science and green growth.

> The system with its low maintenance and versatile in control

system serves as a good model for replication in other

regions of the Philippines.

> Savings on water is significant.

> The benefit cost analysis at present is limited to

economic considerations because environmental

aspects are not yet compelling as implementation of

environmental laws are lightly enforced.

Application of Integrated

Rainwater, Stormwater &

Wastewater Management

System at the Green

Schools for Climate

Change in the Philippines

Korea Institute of Construction

Technology EREDE CO., LTD.

DOST PHASE 2:

- Cooperation between Environment and

Development Division of ESCAP and the

Department of Science and Technology Region

VII (DOST VII) to promote awareness and

advocacy on eco-efficient water infrastructure

development. The key other partners are KICT

and EREDE.CO.,Ltd..

The Project:

•Develop a concept and a set of architectural

designs for Green School development;

•Pilot application of concept into selected two

schools as pilot projects;

•Strengthen planning and designing capacity of

government officials in Region 7 of the

Philippines on Green School;

•Educate young generations for concept of Green

Growth through implementation process of the

project.

Objectives of the project:

•Development of a conceptual architectural

designs on Green School;

•Construction of systems in two selected schools

in Cebu;

•Development of Policy Guidelines for

development of Green School;

•Enhanced capacity building including education

of young generation.

Key Components and Outputs:

Implementation: Development of a conceptual

architectural designs on Green School

• We envisioned a green school that is adaptable to climate

change effects

• A design elements that relates to the environment, that is a

teaching tool and as well as an effective architectural element

• The design must be an environmentally sensitive

• A building that teaches concept, incorporating new ideas in

building designs

• A building that teaches about environmental conservation

• A building that teaches sustainability

• A school building that teaches respect for the environment

and whose students promote and lead in protecting the earth

and its resources

Building Types on six

(6) dimensions

• FLOATING

• LOW LAND

• HIGH LAND

• MOBILE

• RURAL

• URBAN • Single Storey

• Multiple and its resources

The project started in 2011 to December 2013.

Two project sites are selected: the Philippine Science High

School – Argao Campus in Argao, Cebu (80 km south

of Cebu City), and the Zapatera Elementary School in

Cebu City. These were recently tested and

commissioned

Development of designs for Philippine adapted green schools

are prepared to convince education decision-makers to

Introduce green growth in basic education. Archt. Cyril

Abu completed the Green School concepts, designs

and plans.

Policy guidelines were already prepared for submission. C/o

EREDE Co. Ltd.

Several forums and symposia are conducted on ISWM.

Implementation: Constructions of Systems in two

(2) Selected Schools in Cebu

• Philippine Science High School in Argao, Cebu, Philippines

Project Site 1

Philippine Science High School – Argao Campus, Argao Cebu

Academic Building Dormitory Building

Philippine Science High School – Argao Campus,

Argao Cebu

Rainwater storage tank (left) and

wastewater treatment tank

(right).

Philippine Science High School – Argao Campus,

Argao Cebu

Micro filtration System installed at the Machine Room

Diagram of ISWM at the Philippine Science High School – Argao Campus,

WATERING PLANTS

RING BLOWER

AIR

- WASH WATER

- LAVATORY

75TON R/W STORAGE TANK27TON R/W TREATED TANK

5T 5T

MICRO FILTRATION

SYSTEM,

20Tons/day capacity

SUCTION PUMP

OVERHEAD TANKS

SUCTION PUMP

MEMBRANE AERATION TANK

LEACHING WELLAERATION WELL

MEMBRANE UNIT

TO BUILDING TOILET

RAINWATER ( ROOF )

FIRST FLUSHING

TREATMENT

DEVICE

( GREEN FILTER )

GREY WATER

Zapatera Elementary School Building

currently under renovation to highlight a

sample of green school and water museum.

Project Site 2

• Rainwater Storage tank (below) in Zapatera Elementary School

• Machine Room in Zapatera Elementary School

Diagram of ISWM at the Zapatera Elementary School – Cebu City

RAINWATER ( ROOF )

FIRST FLUSHING

TREATMENT

DEVICE

( GREEN FILTER )

50 T R/W STORAGE TANK

10T R/W TREATED TANK

MICRO FILTRATION

SYSTEM, 10T/day

SUCTION PUMP

ROOF TOP

TREATED TANK

SUCTION PUMP

TO BUILDING TOILET

Rainwater Collection at Phil. Science High School

Rainwater from the roof of the two (2) dormitories

- Total catchment area of 1,200 sq. meter (approx.)

Rainwater Collection at Zapatera Elem. School

Rainwater from the roof of the school building.

- Total catchment area of 500 sq. meter (approx.)

Implementation: Development of Policy Guidelines for

Development of Green School

Some suggested policy recommendations:

1st, the strategic approach to use political election and

important events such as local election to promote the green

school as this initiative become successful when firmly and

explicitly driven by the higher leader of political leadership and

commitment

2nd, the planning of green school needs to be established

envisioned a green school in an integrated manner in the

overall context of urban and land planning

3rd, the initiatives for green school development require eco-

designs and building codes of school buildings

4th, the successful green school initiatives needs eco-labeling

and certification systems for green school buildings as basis to

demonstrate key features, incentives such as tax reduction and

subsidy and increase marketability

5th, the partnerships with business sectors, engineer groups,

communities and the public is the key to the success of green

school

6th, up-scaling green school in the systematic approaches is an

important element for success of green school initiatives in the

long term

7th, the innovative financing mechanisms to address financial

burdens and difficulties for green school constructions in the

initial stage need to be developed and strengthened

8th, green school itself becomes a part of the students learning

experiences in the green school building

Advocacy Workshop held in DOST 7, Cebu City on Sept. 27, 2013

Implementation: Enhanced Capacity Building including education of

young generations

Challenges

• Issues that affect the project implementation

- Procurement of the ISWM system components – Bidding

process under Phil. Procurement Process is strictly followed.

- Importation led time – machine/equipment

- Working with partners and their counterpart as recipient of

the project

- Dealing with local officials ( in the case of Zapatera Elem.

School)

• Retrofitting concerns

- Existing buildings have single pipeline for potable water only.

• CO2 Emissions/Carbon Footprints

- Use of electric motors for pumping water

• Prone to disaster

- Earthquakes, strong typhoons, landslides, flooding, etc.

Follow Up actions

- Local Manufacturing of imported component

parts or Local Raw Materials Substitute of

imported component parts

- Avoid collaborations with political affiliations

- Adherence to Phil. Building Code on 2 pipeline

system (potable and non-potable)

- Possibilities of using renewable energy

- Designs for disaster resilient buildings

Other Follow up Actions

> There is a need to develop a training manual on how to

establish ISWM systems.

> More comprehensive benefit and cost analysis need to be

conducted considering the economic aspect and the

environmental effects, including carbon credits.

> Efforts should be exerted to encouraqe decision-makers to

include ISWM in the construction of government

infrastructure and in the building code.

> Incentives must be provided by government to those who

use ISWM or similar technologies.

> Benchmarking with other countries is needed.

Thank You

As we welcome you to our

project PHASE 3: Design and

development of resilient eco-efficient

schools in the Philippines.