WASTE WATER TREATMENT

best suggested methods for waste water treatment and reclaim it for using.

1. METHODS OF WASTE WATER TREATMENT PRESENTOR SHAIK NAGUR SHAREEF 161FA04195 VIGNAN’S UNIVERSITY

2. Contents Introduction Objective Elements of waste water Impact of waste water Treatment methods conclusion

3. What is waste water? 9/14/2017 SHAIK NAGUR SHAREEF 3 D omestic effluent consisting of blackwater and graywater . Water from commercial establishments and institutions , including hospitals. Industrial effluent , stormwater and other urban run-off . Agricultural,horticultural and aquaculture effluent , either dissolved or as suspended matter.

4. Main objective 9/14/2017 SHAIK NAGUR SHAREEF 4 To manage water discharged from homes, businesses, and industries to reduce the threat of water pollution.

5. Components present in waste water 9/14/2017 SHAIK NAGUR SHAREEF 5 Hardness Alkalinity COD BOD Inorganic material

6. Impacts 9/14/2017 SHAIK NAGUR SHAREEF 6 Water pollution Loss of blue carbon sink Ecological Imbalance Biodiversity Loss of fisheries livelihood Climate change

7. Wastewater effect on environment 9/14/2017 SHAIK NAGUR SHAREEF 7

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9. Singapore: Water Treatment & Wastewater Recycling Systems 9/14/2017 SHAIK NAGUR SHAREEF 9 The Public Utilities Board (PUB), Singapore’s national water authority, has outsourced some $3.0 billion worth of water infrastructure projects * Deep Tunnel * Sewerage System * Marina Barrage * desalination

10. Treatment techniques 9/14/2017 SHAIK NAGUR SHAREEF 10 AOP or APOP Advanced OxydationProcess Sewage system To treat sewage water Technical method To treat large mass of water

11. AOP or APOP 9/14/2017 SHAIK NAGUR SHAREEF 11 Advanced Oxidation Process Principle

12. P rocess 9/14/2017 SHAIK NAGUR SHAREEF 12

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15. Action of AOP 9/14/2017 SHAIK NAGUR SHAREEF 15

16. Sewage system 9/14/2017 SHAIK NAGUR SHAREEF 16

17. Technical method 9/14/2017 SHAIK NAGUR SHAREEF 17 Pre-treatment Preliminary treatment Primary treatment Secondary treatment Sludge (bio solids) disposal

18. Process 9/14/2017 SHAIK NAGUR SHAREEF 18 Water discharged from homes, businesses, and industry enters sanitary sewers Water from rainwater on streets enters storm water sewers Combined sewers carry both sanitary wastes and storm water Water moves toward the wastewater plant primarily by gravity flow Lift stations pump water from low lying areas over hills

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20. Preliminary Treatment 9/14/2017 SHAIK NAGUR SHAREEF 20 R emoves large objects and non-degradable materials P rotects pumps and equipment from damage B ar screen and Grit chamber

21. Preliminary treatment 9/14/2017 SHAIK NAGUR SHAREEF 21

22. Measurement and sampling at the inlet structure 9/14/2017 SHAIK NAGUR SHAREEF 22 A flow meter continuously records the volume of water entering the treatment plant. Water samples are taken for determination of suspended solids and B.O.D. Measurements of Suspended Solids and B.O.D. indicate the effectiveness of treatment processes. Both Suspended Solids and B.O.D. decrease as water moves through the wastewater treatment processes

23. Primary Treatment 9/14/2017 SHAIK NAGUR SHAREEF 23 A physical process. Wastewater flow is slowed down and suspended solids settle to the bottom by gravity W the material that settles is called sludge or bio solids

24. Primary Treatment 9/14/2017 SHAIK NAGUR SHAREEF 24

25. Secondary treatment 9/14/2017 SHAIK NAGUR SHAREEF 25

26. Secondary treatment 9/14/2017 SHAIK NAGUR SHAREEF 26 Secondary treatment is a biological process Utilizes bacteria and algae to metabolize organic matter in the wastewater In Cape Girardeau secondary treatment occurs on the trickling filter the trickling filter does not “filter” the water water runs over a plastic media and organisms clinging to the media remove organic matter from the water. From secondary treatment on the trickling filter water flows to the final clarifiers for further removal of sludge. The final clarifiers are another set of primary sedimentation tanks. From the final clarifiers the water is discharged back to the Rivers .

27. Secondary treatment 9/14/2017 SHAIK NAGUR SHAREEF 27 The final clarifiers remove additional sludge and further reduce suspended solids and B.O.D. Disposal of sludges The sludge undergoes lime stabilization to kill potential pathogens The stabilized sludge is disposed into agricultural fields

28. Conclusion 9/14/2017 SHAIK NAGUR SHAREEF 28 water is one of the most important source on earth It is known as universal solvent We must not waste the water The waste water that we obtain from our daily purposes and from industries must be treated in treatment systems inorder to reduce pollution. our govt must provide facilities and infrastructure to avoid water pollution and manage wasre water.

29. Thank you 9/14/2017 SHAIK NAGUR SHAREEF 29