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Water and Sanitation Session 2: Environmentally Sustainable Water and Sanitation Technologies

Water and Sanitation Session 2: Environmentally Sustainable Water and Sanitation Technologies. What’s different between standard watsan and post-disaster watsan?. Flooding Indonesia December 2006 Photo Emily Rand. Key Points. Good WatSan = Good Environmental Management

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Water and Sanitation Session 2: Environmentally Sustainable Water and Sanitation Technologies

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  1. Water and SanitationSession 2: Environmentally Sustainable Water and Sanitation Technologies

  2. What’s different between standard watsan and post-disaster watsan? Flooding Indonesia December 2006 Photo Emily Rand

  3. Key Points Good WatSan = Good Environmental Management Principle: WatSan projects “do no harm” to the environment Goal: Sustainable watsan projects after disasters have humanitarian and environmentally positive outcomes

  4. What are the criteria for successful watsan projects? • Another way of saying it: What are the conditions that need to be in place for watsan projects to succeed? • List them on a flip chart • E.g., • Community participation in decision making • Works with cultural norms and practices • Affordable • Appropriate soil and climate conditions • Adequate training in use and maintenance of the system • Others?

  5. In this session we will discuss…. • Key post-disaster watsan technologies • Technologies that are chosen for their sustainability • Disaster or emergency situations when this technology is uniquely applicable • When it is best not applied

  6. Basic Principle: Don’t Eat Poop Our job is to inserta barrier Mod 7 Ses 2

  7. Another Key Point: Latrines and Hand-washing Mod 7 Ses 2

  8. Environmentally Sustainable Technologies Water Supply Sanitation Solid waste management Mod 7 Ses 2

  9. Water Supply: Source, Movement, and Treatment Mod 7 Ses 2

  10. Water Sources Deep Ground Water Wells Shallow Wells Springs Rivers Ponds Dew Rain Water Ocean Mod 7 Ses 2

  11. Water Treatment • Boiling Water • BioSand Filter • Moringa Oleifera Seeds • Air Titra • Ceramic Filters • SODIS • Chlorine • Waster Pasteurization through Improved Cookstoves (WAPIC) Mod 7 Ses 2

  12. Sand Filter Mod 7 Ses 2

  13. Bio Sand Filter Mod 7 Ses 2

  14. Ceramic Filters Mod 7 Ses 2

  15. SODIS System http://upload.wikimedia.org/wikipedia/commons/9/98/Pictograms_SODIS.jpg Mod 7 Ses 2

  16. Sanitation Mod 7 Ses 2

  17. Pit Latrine Mod 7 Ses 2

  18. Latrine with Soak Pit Mod 7 Ses 2

  19. Septic Tanks Mod 7 Ses 2

  20. Desludging Septic Tanks Mod 7 Ses 2

  21. Anaerobic Filters/Biofilters Mod 7 Ses 2

  22. Urine Diversion Dehydration Toilets Sources: http://www.sustainablesettlement.co.za/howto/urinediv/images/fig1_big.jpg and http://www.gtz.de/de/dokumente/en-ecosan-topicsheet-2009.pdf Mod 7 Ses 2

  23. Urine Application on Agricultural Field near Stockholm (Sweden) Mod 7 Ses 2

  24. Composting Latrines: Move the Toilet Mod 7 Ses 2

  25. Composting Toilet: Move the Feces Mod 7 Ses 2

  26. Continual Composting Toilet Mod 7 Ses 2

  27. Wetlands for wastewater treatment Mod 7 Ses 2

  28. Communal Treatment Systems Mod 7 Ses 2

  29. Solid Waste Management Mod 7 Ses 2

  30. Mod 7 Ses 1

  31. Mod 7 Ses 2

  32. Home Composting Mod 7 Ses 2

  33. Solid Waste Options Reuse Reduce Recycle Safe Disposal Mod 7 Ses 2

  34. Biogas http://sgp.undp.org/intranet//img/projects/9238/SVS_Biogas.jpg Demonstration biogas plant in villages in Uttar Pradesh, India to reduce use of firewood and motivate the community to adopt cleaner alternate fuels.

  35. Questions? Mod 7 Ses 2

  36. Environmentally Sustainable Water and Sanitation Technologies: Group 1: Rain Tank, pp 5 -- 9 Group 2: Constructed Wetland, pp 10 -- 25 Group 3: Biofilter/Anaerobic filter, pp 26 -- 36 Group 4: Home Composting, pp 37 -- 42 Group 5: Composting Toilet, pp 43 – 49 All groups also receive “Other Technologies” pp 50 - 52 Mod 7 Ses 2

  37. LUNCH

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