LAGOONING OF WASTEWATER<br />A Casestudy in Phuentsholing<br />TsheringChoden<br />WangmoGhalley<br />TshunduRabgay<br />Y...
OUTLINE<br /><ul><li>BACKGROUND
LITERATURE REVIEW
OBJECTIVES
METHODOLOGY
EXPECTED OUTCOMES
WORKPLAN</li></li></ul><li>BACKGROUND<br />Types of wastewater treatment technologies: <br />Chemical treatment:<br /><ul>...
Requires more energy and uneconomical</li></ul>2.  Natural/Biological treatment:<br /><ul><li>Terrestrial system
Wetland system
Aquatic system: Lagoon system </li></li></ul><li><ul><li>Lagoon system:
Lagoon systems are cost effective to design, construct, operate and maintain.
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proposal

  1. 1. LAGOONING OF WASTEWATER<br />A Casestudy in Phuentsholing<br />TsheringChoden<br />WangmoGhalley<br />TshunduRabgay<br />Yoesel Dorji<br />Project mentor : Director Dr. ChekiDorji<br />
  2. 2. OUTLINE<br /><ul><li>BACKGROUND
  3. 3. LITERATURE REVIEW
  4. 4. OBJECTIVES
  5. 5. METHODOLOGY
  6. 6. EXPECTED OUTCOMES
  7. 7. WORKPLAN</li></li></ul><li>BACKGROUND<br />Types of wastewater treatment technologies: <br />Chemical treatment:<br /><ul><li>Causes environmental pollution
  8. 8. Requires more energy and uneconomical</li></ul>2. Natural/Biological treatment:<br /><ul><li>Terrestrial system
  9. 9. Wetland system
  10. 10. Aquatic system: Lagoon system </li></li></ul><li><ul><li>Lagoon system:
  11. 11. Lagoon systems are cost effective to design, construct, operate and maintain.
  12. 12. Effectively remove pollutants and pathogens promoting hygiene in the area.</li></li></ul><li>LITERATURE REVIEW<br /><ul><li>Hobson, John,U.K., Good Practice Guidance and Uncertainty Management in National Greenhouse Gas Inventories ;CH₄ and N₂O emission from wastewater handling
  13. 13. Methods for monitoring and estimating methane emissions from sludge treatment.
  14. 14. Hotter climates: anaerobic processes are more likely to be employed.</li></li></ul><li>A Natural Wastewater Treatment Program, Carolina Bays(1993)<br /><ul><li>Design of a soil filter treatment plant(wetland) with the innovative use of willows and poplars instead of reeds as vegetation and a composter for the direct composting of solids. </li></ul>William J. Oswald, Advance integrated wastewater pond system<br /><ul><li>Proper design of treatment plant to eliminate sludge and lower the power-use incorporating methane fermentation and photosynthetic oxygenation. </li></li></ul><li>OBJECTIVES<br /><ul><li>To design a community based Lagoon system that can provide low cost sanitation and environmental protection.
  15. 15. To determine the quality of wastewater.
  16. 16. To determine the discharge of wastewater of CST.
  17. 17. To determine the bearing capacity of the designated site.</li></li></ul><li>METHODOLOGY<br />SITE SELECTION <br /><ul><li> BEARING CAPACITY OF SOIL
  18. 18. PERMEABILITY TEST</li></ul>CHARACTERIZATION OF WASTEWATER<br /><ul><li> DETERMINATION OF SEWAGE DISCHARGE
  19. 19. POPULATION SURVEY</li></ul>DETERMINATION OF DESIGN LIMITS<br />DESIGN OF TREATMENT PLANT<br /><ul><li>LAGOON PONDS
  20. 20. SLUDGE DISPOSAL AREA
  21. 21. DRAINAGE SYSTEM
  22. 22. ECOLOGICAL POND</li></ul>PLANT TREATMENT ESTIMATION<br />
  23. 23. EXPECTED OUTCOMES<br /><ul><li>Design a lagoon treatment plant that generates no offensive smells, and have minimum effect on environment.
  24. 24. Application of theoretical knowledge.
  25. 25. Determine the characteristics of waste water in the CST campus.</li></li></ul><li>WORK PLAN<br />
  26. 26. THANK YOU!!<br />

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