Constructed wetlands summary code innovation - feb 2013

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Constructed wetlands summary code innovation - feb 2013

  1. 1. Wetlands Image courtesy of Wetlands International
  2. 2. What is a wetland? Image courtesy of Alaska Wetland Coalition
  3. 3. Constructed Wetlands• Replicates the naturally occurring processes of a natural wetland, marsh or swamp• Water slowly flows through the wetland, particles settle, pathogens are destroyed, and organisms and plants utilize the nutrients Image courtesy of Morel A., Diener S. 2006.
  4. 4. How Does it Work? Image courtesy of Yayasan IDEP Foundation and Wastewater Gardens
  5. 5. Benefits: Pathogen and Pollutant Removal Image courtesy of UN-HABITAT
  6. 6. Types of Constructed Wetlands Image courtesy of GIZ Sustainable Sanitation Ecosan
  7. 7. Surface Flow Constructed Wetland Image Courtesy of Natural Systems International
  8. 8. Subsurface Flow Constructed Wetland Image Courtesy of Natural Systems International
  9. 9. Horizontal Flow Constructed Wetland Image courtesy of Hoffman
  10. 10. Reed Beds
  11. 11. Vertical Flow Constructed Wetland Image courtesy of Hoffman
  12. 12. Hybrid Constructed Wetland Image courtesy of SSWM
  13. 13. French System Images courtesy of EcoSan Club
  14. 14. PlantsImage courtesy of Vetiver.org Image courtesy of Leelanau Conservation District.
  15. 15. Kathmandu, NepalVertical flow constructed wetland treats500 litres of water a day
  16. 16. Household Wetland in India
  17. 17. A Hybrid Wetland for SmallCommunity Wastewater Treatment in Morocco Image courtesy of EcoSan Club
  18. 18. Primary: Vertical Flow Constructed Wetland Images courtesy of EcoSan Club
  19. 19. Secondary: Horizontal Constructed Wetland Images courtesy of EcoSan Club
  20. 20. Tertiary: Vertical Flow Sand Filter Images courtesy of EcoSan Club
  21. 21. Biogas and Wetland System: Sano Khokana, Nepal Images courtesy of Prakash Chandra Amatya
  22. 22. Image courtesy of Prakash Chandra Amatya
  23. 23. Constructed Wetlands in Pakistan Image courtesy of AlertNet
  24. 24. Additional slides
  25. 25. Image courtesy of Hoffman
  26. 26. Construction/Requirements

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