Review of Environmental Engineering II. Water quality management Water pollutants sources – Point...
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Transcript of Review of Environmental Engineering II. Water quality management Water pollutants sources – Point...
![Page 1: Review of Environmental Engineering II. Water quality management Water pollutants sources – Point sources – Nonpoint sources Water pollutants – Oxygen.](https://reader031.fdocuments.in/reader031/viewer/2022020320/5697bfca1a28abf838ca94e9/html5/thumbnails/1.jpg)
Review of Environmental Engineering II
![Page 2: Review of Environmental Engineering II. Water quality management Water pollutants sources – Point sources – Nonpoint sources Water pollutants – Oxygen.](https://reader031.fdocuments.in/reader031/viewer/2022020320/5697bfca1a28abf838ca94e9/html5/thumbnails/2.jpg)
Water quality management
• Water pollutants sources– Point sources– Nonpoint sources
• Water pollutants– Oxygen demanding material– Nutrients– Pathogenic organisms– Suspended solids– Salts– Toxic metals– Heat– ….
![Page 3: Review of Environmental Engineering II. Water quality management Water pollutants sources – Point sources – Nonpoint sources Water pollutants – Oxygen.](https://reader031.fdocuments.in/reader031/viewer/2022020320/5697bfca1a28abf838ca94e9/html5/thumbnails/3.jpg)
Water quality management
• Water quality management in rivers– Effect of pollution on river – Effect of oxygen-demanding waste on rivers• Biochemical Oxygen Demand ( BOD)• COD
– DO sag curve• Oxygen deficit• DO sag equation
– Management strategy
![Page 4: Review of Environmental Engineering II. Water quality management Water pollutants sources – Point sources – Nonpoint sources Water pollutants – Oxygen.](https://reader031.fdocuments.in/reader031/viewer/2022020320/5697bfca1a28abf838ca94e9/html5/thumbnails/4.jpg)
Water treatment
• Importance of water• Characteristics of water – Physical – Chemical – Microbiological – Radiological
• Water standard• Water classification– Ground water– Surface water
![Page 5: Review of Environmental Engineering II. Water quality management Water pollutants sources – Point sources – Nonpoint sources Water pollutants – Oxygen.](https://reader031.fdocuments.in/reader031/viewer/2022020320/5697bfca1a28abf838ca94e9/html5/thumbnails/5.jpg)
Water treatment• Treatment systems– Water treatment facilities– Treatment process• Coagulation• Softening
– Lime-Soda Softening– Ion-exchange softening
• Mixing and flocculation• Flocculation• Sedimentation• Filtration• Disinfection
– Other treatment process of drinking water
![Page 6: Review of Environmental Engineering II. Water quality management Water pollutants sources – Point sources – Nonpoint sources Water pollutants – Oxygen.](https://reader031.fdocuments.in/reader031/viewer/2022020320/5697bfca1a28abf838ca94e9/html5/thumbnails/6.jpg)
Wastewater treatment• Perspective• Characteristic of domestic wastewater• On-site disposal systems– Septic system
• Municipal wastewater treatment system– Pretreatment– Primary treatment– Secondary treatment– Advanced wastewater treatment
• Sludge treatment