ETP- Effluent Treatment Plant

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  • 1. DEPARTMENT OF TEXTILE ENGINERINGETP : Effluent Treatment Plant For Textile

2. COURSE TITLE ENVIRONMENTAL POLLUTION AND ITS CONTROL PRESENTATION ON ETP OF DELTA KNIT COMPOSITE LTD. 3. PREPARED BYNameIDMazadul Hasan Sheshir2010000400008 4. PRESENTERMazadul Hasan Sheshir 2010000400008 5. WHAT IS ETP? ETP OR EFFLUENT TREATMENT PLANT IS USED TO TREAT THE INDUSTRIAL WASTE WATER. INFLUENT: UNTREATED INDUSTRIAL WASTE WATER. EFFLUENT: TREATED INDUSTRIAL WASTE WATER. SLUDGE: SOLID PART SEPARATED FROM WASTE WATER BY ETP.TREATMENT INFLUENTETP SLUDGEEFFLUENT 6. ABOUT THE ETP OF DELTA KNIT COMPOSITE LTD. BIOLOGICAL ETP: TREATMENT OF WASTE WATER BY BACTERIA. TREATMENT CAPACITY: 120 m3/hr STORAGE CAPACITY: 6000 m3 7. FLOW CHART OF ETP OF DELTA KNIT COMPOSIT LTD. INFLUENT SCREENINGEQUALIZATION PH CORRECTION DISPERSE UNIT AERATION RECYCLE TANKSEDIMENTATION PACK SEDIMENTATION TANKEFFLUENT FISH PONDSLUDGE THICKENING UNIT SLUDGESLUDGE DISCHARGEEFFLUENT DISCHARGE 8. SCREENING (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 9. SCHEMTIC DIAGRAM OF DRUM SCREENER 10. EQUALIZATIONEQUALIZATION IS THE PROCESS TO MAKE THE WASTE WATER-HOMOGENOUS & -COOL EQUALIZATION TANK IS ALSO CALLED HOMOGENOUS TANK. RETENTION TIME 8 HOURSE THIS TANKA IS MADE OF RCC. 11. SCHEMTIC DIAGRAM OF EQUALIZATION TANK SPRAY OF WATER COMING FROM DYEING UNITINFLUENT FROM SCREENINGEQUALIZATION TANKAIR FOR DIFFUSIONCOOL & HOMOGENOUS INFLUENT TO PH CORRECTION TANK 12. PH CORRECTION IN THIS TANK PH OF THE INFLUENT IS CORRECTED TO MEET THE STANDARD. ACID OR ALKALI IS ADDED TO THE EFFLUENT BY DOZZING TO INCREASE OR DECREASE THE PH OF INFLUENT RESPECTIVELY. MULTI-METER TYPE PH METER IS USED. 13. SCHEMTIC DIAGRAM OF PH CORRECTION ACID OR ALKALIINFLUENT OF DESIRED PH TO DISPERSE UNITINFLUENT FROM EQUALIZATION TANK PH CORRECTION 14. DISPERSE UNIT FUNCTION OF DISPERSETANK IS TO MIX THE SLUDGE COMING FROM RECYCLE TANK WITH WASTE WATER. IT HELPS TO PROPER AERATION. 15. SCHEMTIC DIAGRAM OF DISPERSE UNITSLUDGE FROM RECYCLE TANKINFLUENT FROM PH CORRECTION TANKDISPERSE UNIT ( MIXING OF SLUDGE & WASTE)MIXED INFLUENT & SLUDGE TO AERATION 16. AERATION FUNCTION OF AERATION IS OXIDATION BY BLOWING AIR. AEROBIC BACTERIA IS USED TO STABILIZE AND REMOVE ORGANIC MATERIAL PRESENTS IN WASTE. ABOUT 200 KG AEROBIC BACTERIA IS GIVEN TO THE PLAN FOR 5 YEARS. 17. SCHEMTIC DIAGRAM OF AERATION AEROBIC BACTERIA MIXTURE OF WASTE WATER & SLUDGEAERATION TANKDISCHARGE TO SEDIMENTATION TANKO2 AIR REACTION IN AERATION TANK: BACTERIAORGANIC MATTER + O2CO2+ HO2 + HEAT NUTRIENT 18. SEDIMENTATION PACKIN THIS TANK SLUDGE IS SETTLED DOWN PARTIALLY SEDIMENTATION PACK PROVIDES THE ADVANTAGE OF FAST SLUDGE SEPARATION 19. SEDIMENTATION TANK IN THIS TANK SLUDGE IS SETTLED DOWN FINALLY. EFFLUENT IS DISCHARGED FROM PLANT THROUGH A FISH POND. SLUDGE IS PASSED TO THE THICKENING UNIT. 20. SCHEMTIC DIAGRAM OF SEDIMENTATION TANK WASTE WATER FROM SEDIMENTATION PACKSEDIMENTATION TANKSLUDGE TO THICKENING UNITEFFLUENTFISH PONDEFFLUENT DISCHARGEFISH POND INDICATES THE HIGHER DEGREE OF TREATMENT IN THIS ETP 21. EFFLUENT DISCHARGE 22. SLUDGE THICKENING UNITIN THIS UNIT SLUDGE IS DRIED AND DISCHARGED. A PARTIAL AMOUNT OF SLUDGE IS RETURNED BACK TO THE AERATION TANK FROM THICKENING UNIT THROUGH RECYCLE TANK CALLED RETURN SLUDGE TANK AND DISPERSE TANK. 23. SCHEMTIC DIAGRAM OF SLUDGE THICKENING UNITSLUDGE FROM SEDIMENTATION UNITSLUDGE DISCHARGE SLUDGFE THICKENING UNITSLUDGE TO RECYCLE TANK 24. DRIED SLUDGE 25. RETURN SLUDGE TANKFUNCTION OF RETURN TANK OR RECYCLE TANK IS TO MIX WATER WITH SLUDGETHIS MIXTURE IS THEN PASSED TO AERATION TANK THROUGH DISPERSE TANK. 26. ADVANTAGE OF RECYCLE SLUDGE TO AERATION TANK SLUDGE AGAIN OXIDIZED TO MINIMIZE THE POLLUTION FROM SLUDGE. ALIVE BACTERIA OF SLUDGE IS AGAIN USED IN AERATION TO UTILIZE THIS BACTERIA.SLUDGE FROM THICKENING UNITSLUDGE TO AERATION TANK THROUGH DISPERSE UNIT SLUDGE RECYCLE TANKMIXING OF SLUDGE & WATER 27. THANKS TO ALL