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C E P S - P C S I R

C E P S - P C S I R. C E P S - P C S I R. C E P S - P C S I R. Ses sion. The Global Situation. C E P S - P C S I R. Freshwater Availability Scenario (Per Person). Environmental source draft 2005. C E P S - P C S I R. Fresh Water. The Role of Wastewater. C E P S - P C S I R.

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C E P S - P C S I R

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  1. CEPS-PCSIR

  2. CEPS-PCSIR

  3. CEPS-PCSIR Session

  4. The Global Situation

  5. CEPS-PCSIR Freshwater Availability Scenario (Per Person) Environmental source draft 2005

  6. CEPS-PCSIR Fresh Water The Role of Wastewater

  7. CEPS-PCSIR Meeting The Challenge To Improve Water & Wastewater Quality in The New Millennium

  8. CEPS-PCSIR Physical Characteristics of Waste Water

  9. CEPS-PCSIR Chemical Characteristic of Waste Water

  10. Where does it all go! CEPS-PCSIR When you flush the toilet where does the contents go? Where does the water from the washer go? By gravity flow, the waste is on its way to your local wastewater treatment plant!

  11. CEPS-PCSIR Level of Treatments

  12. CEPS-PCSIR Conventional Wastewater Treatment Process • Pretreatment involves: • Screening • Grit Removal • Oil separation • Flow equalization • Chemical Treatment is used in conjunction with the physical and chemical processes: • Chemical precipitation • Adsorption Sludge Treatment and Disposal involves: grinding, degritting, blending, thickening, stabilization, conditioning, disinfection, dewatering, heat drying, thermal reduction, ultimate disposal • Disinfection can use: • Chlorine compounds • Bromine Chloride • Ozone • UV Radiation

  13. CEPS-PCSIR Flow Sheet of Wastewater Treatment Plant

  14. CEPS-PCSIR Designing a WWTR Scheme

  15. CEPS-PCSIR Basic Design Parameters Considerations

  16. CEPS-PCSIR Wastewater Treatment Biological Unit Operations

  17. CEPS-PCSIR Activated Sludge Process

  18. CEPS-PCSIR Design of Aeration Systems...

  19. To tertiary process From primary process Settling collects sludge on bottom • Aeration and rapid mixing air diffuser

  20. CEPS-PCSIR Aeration Systems ( 1 ) Compressed air diffusion... ( 2 ) Submerged turbine aeration... ( 3 ) Motor - speed ( high ) surface aeration...

  21. CEPS-PCSIR Advantages/Disadvantages

  22. CEPS-PCSIR Trickling Filters

  23. CEPS-PCSIR Advantages/Disadvantages

  24. CEPS-PCSIR Rotating Biological Contactors (RBC)

  25. CEPS-PCSIR Advantages/Disadvantages

  26. CEPS-PCSIR Selection of Technology

  27. CEPS-PCSIR Chemical Coagulation Aluminum sulfate Ferric chloride Ferric sulfate Ferrous sulfate _ _ _ _ + + _ + + _ _ _ + + _ + + + + _ _ + _ _ + + + _ + + _ + + + + + + _ _ + _ _ + _ _ + + + + _ _ + _ _ _ _ _ + _ + + + Lime+ Heavy metalsAlum+ SS removal SS removalP removal P removal Polymer+ - SS control Iron+ SS removal P removal Mechanism: • Destabilization by ionic charge neutralization • Reduce charge that keeps small particles apart + + +

  28. CEPS-PCSIR Flocculation Q Infl Q Gentle Mix / Flocculation Rapid Mix / Coagulation Sludge • Purpose • Produce larger, more dense floc particles that will settle or filter easily • Application • Gentle mixing after rapid mix (coagulation) • Mixing – Mechanical or Aeration

  29. Costs CEPS-PCSIR

  30. CEPS-PCSIR

  31. CEPS-PCSIR Sewage treatment Plant in PCSIRAeration Tank

  32. CEPS-PCSIR Sewage Treatment Plant in PCSIR

  33. CEPS-PCSIR Wastewater Parameters of Sewage Treatment Plant in PCSIR

  34. CEPS-PCSIR BOD, COD and TSS Comparison (IN & OUT)

  35. CEPS-PCSIR Effluent Disposal and utilization

  36. CEPS-PCSIR Use of Sewage Treatment Plant for Agriculture Sector

  37. CEPS-PCSIR Use of Sewage Treatment Plant for Agriculture Sector

  38. CEPS-PCSIR Use of Sewage Treatment Plant for Agriculture Sector

  39. CEPS-PCSIR Use of Sewage Treatment Plant for Agriculture Sector

  40. CEPS-PCSIR Positive Effects of Wastewater

  41. CEPS-PCSIR Negative Impacts of Wastewater

  42. CEPS-PCSIR Conclusion

  43. CEPS-PCSIR Acknowledgment

  44. CEPS-PCSIR For any question, Please sahalirfan@yahoo.com

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