ETP

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ETP

  1. 1. Coming Up.. <ul><li>Introduction </li></ul><ul><li>Where u get Effluent </li></ul><ul><li>Treatments </li></ul><ul><li>Explanation </li></ul><ul><li>After Treatment </li></ul><ul><li>Questions </li></ul><ul><li>Citations </li></ul>
  2. 2. <ul><li>ETP - Pollution </li></ul><ul><li>Necessity </li></ul><ul><li>Uses </li></ul>Introduction Umm… what is ETP?? Facts <ul><li>Textile industry 1/3 rd of total export </li></ul><ul><li>Chemical Processing-70% pollution </li></ul>
  3. 3. Accumulation of Effluents <ul><li>Sizing & Desizing </li></ul><ul><li>Bleaching </li></ul><ul><li>Dyeing & Printing </li></ul><ul><li>Scouring & Mercerizing </li></ul>Facts <ul><li>Dyeing – most wastes </li></ul><ul><li>Effluents- 500 l- 8200 l per 1000kg of yarn/fabric </li></ul><ul><li>Internally used - 60% </li></ul>Whoov! One fabric, so many processes
  4. 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. 5. Treatments (In Brief) <ul><li>Primary </li></ul><ul><li>Secondary </li></ul><ul><li>Tertiary </li></ul>Facts COD & BOD is so confusing!! <ul><li>Small/medium scale industry – no Tertiary </li></ul><ul><li>All process - continuous working </li></ul><ul><li>Cost- 40 Rs/m³ </li></ul>
  6. 6. Arvind Mills Ltd. Santej, Plant Layout (Large scale) Primary Treatment Secondary Treatment Tertiary Treatment
  7. 7. PRIMARY TREATMENT (ANALYSIS) <ul><li>Screening </li></ul><ul><li>Sedimentation </li></ul><ul><li>Equalization </li></ul><ul><li>Neutralization </li></ul><ul><li>Coagulation </li></ul>Processes Hmm.. Quite simple!!
  8. 8. SECONDARY PROCESS (IN DEPTH) <ul><li>Activated sludge process </li></ul><ul><li>Oxidation ponds </li></ul><ul><li>Trickling filtration </li></ul>Processes
  9. 9. Activated sludge process <ul><ul><li>An aerobic treatment </li></ul></ul><ul><ul><li>Zoogleal masses </li></ul></ul><ul><ul><li>BOD-95%. </li></ul></ul><ul><ul><li>Color-80% </li></ul></ul><ul><ul><li>All times- 0.5mg/l oxygen </li></ul></ul>Aerated basin, Vertical Spindle Facts Removes phosphate, ammonia, nitrogen, etc.
  10. 10. Trickling filtration <ul><ul><li>Biofilters or </li></ul></ul><ul><ul><li>Percolating filters </li></ul></ul><ul><ul><li>SS : 80 - 90% </li></ul></ul><ul><ul><li>BOD: 40-85% </li></ul></ul><ul><ul><li>Mostly used for cotton finishing wastes </li></ul></ul>
  11. 11. Oxidation pond (waste stabilization ponds) <ul><li>Bacteria/ flagellated protozoa </li></ul><ul><li>Algae </li></ul><ul><li>Photosynthesis </li></ul><ul><li>Economical </li></ul><ul><li>Suits tropical climates </li></ul>
  12. 12. TERTIARY PROCESS <ul><li>Activated Carbon Adsorption </li></ul><ul><li>Chemical Coagulation & precipitation </li></ul><ul><li>Multimedia filtration </li></ul><ul><li>Reverse Osmosis </li></ul>Well.. Is the water clean now?? .. Still not fully!! TDS
  13. 13. Activated Carbon Adsorption <ul><li>Removes: </li></ul><ul><ul><li>Mineral oils </li></ul></ul><ul><ul><li>Yeasts </li></ul></ul><ul><ul><li>Odor etc.. </li></ul></ul><ul><li>Polar – Badly removed </li></ul><ul><li>Nonpolar - easily </li></ul>It is used to filter Vodka & Whiskey! 
  14. 14. Multimedia filtration <ul><li>Mixed media filtration </li></ul><ul><li>Conventional gravity type/pressure filters </li></ul>u know? It’s the same thing in our Acquaguards
  15. 15. Reverse Osmosis
  16. 16. Any Questions Hmm! ETP is an interesting topic <ul><li>Waste water </li></ul><ul><li>Pollution </li></ul><ul><li>Treatment </li></ul><ul><ul><li>Primary </li></ul></ul><ul><ul><li>Secondary </li></ul></ul><ul><ul><li>Tertiary </li></ul></ul><ul><li>Reuse/ Dumped </li></ul>Summary
  17. 17. INDUSTRY VISIT PICTURES
  18. 20. INLET OF EFFLUENTS
  19. 21. INLET OF EFFLUENTS
  20. 22. EFFLUENT STORAGE
  21. 23. EFFLUENT STORAGE
  22. 24. EFFLUENT STORAGE
  23. 25. SCREENING
  24. 26. ADDITION OF COAGULANTS
  25. 27. EFFLUENT PRECIPITATION TANK
  26. 28. REMOVAL OF STARCH
  27. 29. VIEW
  28. 30. REMOVAL OF SLUDGE
  29. 31. REMOVAL OF SLUDGE
  30. 34. CHLORINE CYLINDER
  31. 35. PRE-OSMOSIS TREATMENT
  32. 36. OSMOSIS TREATMENT
  33. 37. PRESSURE TRACKING METER
  34. 38. Citations <ul><li>Websites </li></ul><ul><ul><li>www.lenntech.com </li></ul></ul><ul><ul><li>www.nanoscienceworks.org </li></ul></ul><ul><ul><li>www.fibre2fashion.com </li></ul></ul><ul><li>Textbooks </li></ul><ul><li>Manivasakan. N, “Treatment of Textile Processing Effluents”, Sakthi publications, Coimbatore, 1995. </li></ul><ul><li>Takashi Asano, “ Wastewater Reclamation and Reuse”, CRC Press,1998 </li></ul>Mr. Nilesh Mulya Mr.Shubhanish Malhotra.. etc
  35. 39. <ul><li>ThankYou!!! </li></ul>

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