This document is a presentation on a biochemical effluent treatment plant (ETP). It provides details on the various processes within the ETP including screening, equalization, flocculation, sedimentation, and aerobic digestion. It describes the functions of key components like the drum screener, equalization tank, flocculation tanks, sequencing batch reactor, inclined plate settlers, and aerobic digester tank. Diagrams illustrate the overall flow process and functions of components like the drum screener and sludge conditioning tank. The presentation was prepared by Mazadul Hasan Sheshir for the Department of Wet Processing Technology at Southeast University in Bangladesh.

1. Presentation on Biochemical ETP 1

2. Presentation on Biochemical ETP 2

3. Prepared By : Mazadul Hasan sheshir
ID: 2010000400008
13th
Batch (session 2009-2013)
Department : Wet Processing Technology
Email: mazadulhasan@yahoo.com
Blog : www. Textilelab.blogspot.com (visit)
Southeast University
Department Of Textile Engineering
I/A 251,252 Tejgaon Dhaka Bangladesh
Prepared By :

4. Total Textile Process at a Glance

5. Presentation on Biochemical ETP 5

6. 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.
Presentation on Biochemical ETP 6

7. WHAT IS ETP?WHAT IS ETP?
Presentation on Biochemical ETP 7
INFLUENT ETP EFFLUENT
SLUDGE

8. Presentation on Biochemical ETP 8
 BIOCHEMICAL ETP:
TREATMENT OF WASTE WATER
BY CHEMICAL & BACTERIA.
TREATMENT CAPACITY: 120
m33
/hr
STORAGE CAPACITY: 6000 m3

9. Presentation on Biochemical ETP 9

10. FLOW CHART OF ETP OF ECHOTEX LTDFLOW CHART OF ETP OF ECHOTEX LTD..
Presentation on Biochemical ETP
10
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
FLOCCULATI
ON TANK-2
TERTIARY
INCLINED
PLATE
SETTELER
AEROBIC DIGESTER
TANK
SLUDGE CONDITIONONG
TANK
FILTER PRESS
Recyclewastewater
Recycle wastewater
SLUDGE
DISPOSAL
DISCHARGED
TO CANAL

11. (DRUM SCREENER IS USED IN THIS ETP)
Presentation on Biochemical ETP 11
 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

12. Presentation on Biochemical ETP 12
SCHEMTIC DIAGRAM OF DRUM SCREENER:SCHEMTIC DIAGRAM OF DRUM SCREENER:

13. 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
Presentation on Biochemical ETP 13
EQUALIZATION TANK:

14. Presentation on Biochemical ETP 14
EQUALIZATION TANK
INFLUENT
FROM
SCREENING
AIR FOR DIFFUSION
COOL
&
HOMOGENOUS
INFLUENT TO
PH
CORRECTION
TANK

15. Ozone contact tank is used
to_____
Remove color
Add more DO
Kill Anaerobic Bacteria
O3 is create by Ozonator
Presentation on Biochemical ETP 15
This tank is made of RCC
Capacity : 31.08 m3

16. FLOCCULATION TANK IS USE FOR____FLOCCULATION TANK IS USE FOR____
Coagulant-flocculants
(lime, ferrous & polymer)
Break down Color Bond
Decolorant
This Tank Is Made Of RCC
Capacity: 31.08 m3
Presentation on Biochemical ETP 16
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.

17. Presentation on Biochemical ETP 17
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.

18. Presentation on Biochemical ETP 18
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,

19. Presentation on Biochemical ETP 19
CAPACITY : 375.76 m3
Generally use to reduce temperature and increase DO.
To storage the wastewater for next treatment.

20. Presentation on Biochemical ETP 20
THIS TANK IS MADE OF RCC
CAPACITY : 245 m3
Aerobic digestion is an open system that utilizes oxygen
and biologically treats waste with naturally occurring
organism.
AEROBIC
DIGESTERDIGESTER
TANKTANK
WASTEWATER
FROM INCLINED
PLATE SETTELER
SLUDGE TO
CONDITIONING
TANK
RECYLCE
WASTEWATER TO
EQUALIZATION
TANK

21. Presentation on Biochemical ETP 21
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.

22. Presentation on Biochemical ETP 22
SCHEMTIC DIAGRAM OF FUNCTION OF SLUDGESCHEMTIC DIAGRAM OF FUNCTION OF SLUDGE
CONDITIONING TANK:CONDITIONING TANK:
SLUDGE
CONDITIONINGCONDITIONING
TANKTANK
SLUDGE
FROM
AEROBIC
DIGESTER
TANK
SLUDGE TO FILTER
PRESS/ DISPOSAL
SLUDGE TO
RECYCLE TANK

23. Presentation on Biochemical ETP 23
Discharge To
Canal

24. AcknowledgementAcknowledgement
Presentation on Biochemical ETP 24
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.

25. References:References:
Presentation on Biochemical ETP 25
1. Visit of ECHOTEX by 13th
batch with Arun Kanti Guha
2. www.textilelearners.blogspot.com/effluenttreatmentplant
3. Class lectures of Environment pollution and its control.
4. http://www.akarwastewatertreatmentplants.com/hospital-effluent-treatment-p
5. 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

28. 1. Yarn Manufacturing Technology
Link : http://www.facebook.com/pages/Yarn-Manufacturing-
Technology/485014954866808
2. Fabric Manufacturing Technology
Link : http://www.facebook.com/pages/Fabric-Manufacturing-
Technology/459520217425605
3. Garments Manufacturing Technology
Link : http://www.facebook.com/pages/Garments-Manufacturing-
Technology/472364799463126
3. Wet processing Technology
Link : http://www.facebook.com/pages/Wet-Processing-Technology-
Dyeing-/468645219825404
4. Fashion-Design-and-Technology
Link : http://www.facebook.com/pages/Fashion-Design-and-
My Facebook Textile related Pages
http://www.textilelab.blogspot.com (Visit please )