Biochemical etp

Presentation on Biochemical ETP 1


Prepared By : Mazadul Hasan sheshirID: 201000040000813th Batch (session 2009-2013)Department : Wet Processing Technology Email: [email protected] : www. Textilelab.blogspot.com (visit)

Southeast University Department Of Textile Engineering

I/A 251,252 Tejgaon Dhaka Bangladesh

Prepared By :

Total Textile Process at a Glance


Effluent is the stream of excess chemical liquor which is extracted from an industry after using in original operation.

The excess dye liquor which is extracted from textile industry after dyeing from different processes are treated with various chemicals to remove or neutralize the toxic materials before discharging to environment (e,g- ground water) . This is called effluent treatment.


WHAT IS ETP?WHAT IS ETP?


INFLUENTETP

EFFLUENT

SLUDGE


BIOCHEMICAL ETP: TREATMENT OF WASTE WATER BY CHEMICAL & BACTERIA.

TREATMENT CAPACITY: 120 m33/hr

STORAGE CAPACITY: 6000 m3


FLOW CHART OF ETP OF ECHOTEX LTDFLOW CHART OF ETP OF ECHOTEX LTD..


INFLUENT

SCREENING

EQUALIZATION TANK

OZONE CONTACT TANK-1

FLOCCULATION TANK-1

SEQUENCING BATCH REACTOR

INTERMEDIATE TANK

OZONE CONTACT TANK-2

PRIMARY INCLINED PLATE SETTELER

FINAL TREATD WATER

FLOCCULATION TANK-2

TERTIARY INCLINED

PLATE SETTELER

AEROBIC DIGESTER TANK

SLUDGE CONDITIONONG TANK

FILTER PRESS

Rec

ycle

was

tew

ater

Recycle wastewater

SLUDGE DISPOSAL

DISCHARGED TO CANAL

(DRUM SCREENER IS USED IN THIS ETP)


Screening is the filtration process for the separation of coarse particles from influent.

Stainless steel net is used for screening.

Hard plastic brushes are used to clean the net, which are driven mechanically.

DRUM SCREENER


SCHEMTIC DIAGRAM OF DRUM SCHEMTIC DIAGRAM OF DRUM SCREENER:SCREENER:

EQUALIZATION IS THE PROCESS TO MAKE THE WASTE WATER-

-HOMOGENOUS &

-COOL

Dine By air passing.EQUALIZATION TANK IS ALSO CALLED HOMOGENOUS TANK.

RETENTION TIME 8 HOURS.

THIS TANK IS MADE OF RCC.

CAPACITY: 2750 m3


EQUALIZATION TANK:

Presentation on Biochemical ETP14

EQUALIZATION TANK

INFLUENT FROM

SCREENING

AIR FOR DIFFUSION

COOL&

HOMOGENOUS INFLUENT TO

PH CORRECTIONTANK

Ozone contact tank is used to_____Remove colorAdd more DOKill Anaerobic BacteriaO3 is create by Ozonator


This tank is made of RCC Capacity : 31.08 m3

FLOCCULATION TANK IS USE FOR____FLOCCULATION TANK IS USE FOR____Coagulant-flocculants

(lime, ferrous & polymer)Break down Color BondDecolorant

This Tank Is Made Of RCC

Capacity: 31.08 m3


According to IUPAC “flocculation is a process of contact and adhesion whereby the particles of a dispersion from larger size clusters”Flocculation process in ETP means increasing the particle size.


SOLOD AND LIQUID SEPERATION PART.

CAPACITY : 70 m3

Primary secondary and tertiary settler ___rack of inclined metal plate, which cause flocculated material to precipitated from waste water.


THIS TANK IS MADE OF RCC

CAPACITY: 842.4 m3

Sequencing batch reactors are industrial processing tanks for the treatment of wastewater . SBR reactors treat waste water from industrial area, and sewage or output from anaerobic digesters or mechanical biochemical and biological treatment facilities in batches,

Oxygen is bubble through the waste water to reduce Biochemical oxygen demand (BOD) , chemical oxygen demand (COD) to make suitable for use in land and aquatic life. Here used bacteria should be aerobic,


CAPACITY : 375.76 m3

Generally use to reduce temperature and increase DO. To storage the wastewater for next treatment.


THIS TANK IS MADE OF RCCCAPACITY : 245 m3

Aerobic digestion is an open system that utilizes oxygen and biologically treats waste with naturally occurring organism.

AEROBIC DIGESTEDIGESTER TANKR TANK

WASTEWATER FROM INCLINED PLATE SETTELER

SLUDGE TO CONDITIONING

TANK

RECYLCE WASTEWATER TO

EQUALIZATION TANK


SIZE : 5 m3

Sludge conditioning is a process whereby sludge solids are treated with chemicals or various other means to prepare the sludge for dewatering processes.


SCHEMTIC DIAGRAM OF FUNCTION OF SLUDGE SCHEMTIC DIAGRAM OF FUNCTION OF SLUDGE CONDITIONING TANK:CONDITIONING TANK:

SLUDGE CONDITIONING CONDITIONING

TANKTANK

SLUDGE FROM

AEROBIC DIGESTER

TANK

SLUDGE TO FILTER PRESS/

DISPOSAL

SLUDGE TO RECYCLE TANK


Discharge To Canal

AcknowledgementAcknowledgement


At first we want to give thanks to our honorable course teacher

Assistant professor Dr. Arun Kanti Guha, for assigning us for this important assignment and also for his immense help in during making this assignment paper. We also want to pay thanks to our senior brother Mazedul Hasan Shishir (13th batch) for his help and support.

At last we want to pay thanks to our group members for help and co-operation with hard working mentality so that we could complete the task with success.

References: References:


1. Visit of ECHOTEX by 13th batch with Arun Kanti Guha2. www.textilelearners.blogspot.com/effluenttreatmentplant3. Class lectures of Environment pollution and its control.4. http://www.akarwastewatertreatmentplants.com/hospital-e

ffluent-treatment-plants-1056860.html5. Div. of Environmental Biotechnology, School of Bio

Sciences and Technology, VIT University, Vellore-632014, INDIA

6. Sixth International Water Technology Conference, IWTC 2001, Alexandria, Egypt

7. http://www.jea.com/about/pub/downloads/ip/CleanConn-JulAug03.pdf

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3. Garments Manufacturing TechnologyLink : http://www.facebook.com/pages/Garments-Manufacturing-Technology/472364799463126

3. Wet processing TechnologyLink : http://www.facebook.com/pages/Wet-Processing-Technology-Dyeing-/468645219825404

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Biochemical etp