The document discusses effluent treatment plants (ETPs), which are necessary for treating wastewater from industries like textile processing that generate large amounts of pollution. It provides an overview of the various processes involved in ETPs, including primary treatment to remove solids, secondary treatment using biological processes, and tertiary treatment to further clean the water before discharge or reuse. The document outlines the key stages and treatments at both small and large scale ETPs, and addresses some common questions about effluent treatment.

1. Coming Up.. Introduction Where u get Effluent Treatments Explanation After Treatment Questions Citations

2. ETP - Pollution Necessity Uses Introduction Umm… what is ETP?? Facts Textile industry 1/3 rd of total export Chemical Processing-70% pollution

3. Accumulation of Effluents Sizing & Desizing Bleaching Dyeing & Printing Scouring & Mercerizing Facts Dyeing – most wastes Effluents- 500 l- 8200 l per 1000kg of yarn/fabric Internally used - 60% Whoov! One fabric, so many processes

4. Effluent Stages Parameter Gov’t Standards Before After ph 6.5 to 8.5 7-11 7.60 BOD 30 mg/lit 300 18 COD 100 mg/lit 600 90 Suspended solids 100 mg/lit 90 70 TDS Approx. 2100 mg/lit 3000 3000 Oil & Grease 10 mg/lit Not Defined Nil Sulphates Nil 1-2mg/lit Nil Chlorides 600 mg/lit 1250 500 Temperature 40°C 50°C approx. Not Defined Conductivity Zero 4000 4700 Color(units) 100 units 2000 Turibidity(fau) 15 180 10

5. Treatments (In Brief) Primary Secondary Tertiary Facts COD & BOD is so confusing!! Small/medium scale industry – no Tertiary All process - continuous working Cost- 40 Rs/m³

6. Arvind Mills Ltd. Santej, Plant Layout (Large scale) Primary Treatment Secondary Treatment Tertiary Treatment

7. PRIMARY TREATMENT (ANALYSIS) Screening Sedimentation Equalization Neutralization Coagulation Processes Hmm.. Quite simple!!

8. SECONDARY PROCESS (IN DEPTH) Activated sludge process Oxidation ponds Trickling filtration Processes

9. Activated sludge process An aerobic treatment Zoogleal masses BOD-95%. Color-80% All times- 0.5mg/l oxygen Aerated basin, Vertical Spindle Facts Removes phosphate, ammonia, nitrogen, etc.

10. Trickling filtration Biofilters or Percolating filters SS : 80 - 90% BOD: 40-85% Mostly used for cotton finishing wastes

11. Oxidation pond (waste stabilization ponds) Bacteria/ flagellated protozoa Algae Photosynthesis Economical Suits tropical climates

12. TERTIARY PROCESS Activated Carbon Adsorption Chemical Coagulation & precipitation Multimedia filtration Reverse Osmosis Well.. Is the water clean now?? .. Still not fully!! TDS

13. Activated Carbon Adsorption Removes: Mineral oils Yeasts Odor etc.. Polar – Badly removed Nonpolar - easily It is used to filter Vodka & Whiskey! 

14. Multimedia filtration Mixed media filtration Conventional gravity type/pressure filters u know? It’s the same thing in our Acquaguards

15. Reverse Osmosis

16. Any Questions Hmm! ETP is an interesting topic Waste water Pollution Treatment Primary Secondary Tertiary Reuse/ Dumped Summary

17. INDUSTRY VISIT PICTURES

20. INLET OF EFFLUENTS

21. INLET OF EFFLUENTS

22. EFFLUENT STORAGE

23. EFFLUENT STORAGE

24. EFFLUENT STORAGE

25. SCREENING

26. ADDITION OF COAGULANTS

27. EFFLUENT PRECIPITATION TANK

28. REMOVAL OF STARCH

29. VIEW

30. REMOVAL OF SLUDGE

31. REMOVAL OF SLUDGE

34. CHLORINE CYLINDER

35. PRE-OSMOSIS TREATMENT

36. OSMOSIS TREATMENT

37. PRESSURE TRACKING METER

38. Citations Websites www.lenntech.com www.nanoscienceworks.org www.fibre2fashion.com Textbooks Manivasakan. N, “Treatment of Textile Processing Effluents”, Sakthi publications, Coimbatore, 1995. Takashi Asano, “ Wastewater Reclamation and Reuse”, CRC Press,1998 Mr. Nilesh Mulya Mr.Shubhanish Malhotra.. etc

39. ThankYou!!!