Transcript Module 7 Session 2 - Green Recovery & Reconstruction

Water and Sanitation
Session 2: Environmentally Sustainable
Water and Sanitation Technologies
Green Recovery And Reconstruction: Training Toolkit For Humanitarian Aid
What’s different between standard watsan
and post-disaster watsan?
Flooding Indonesia December 2006 Photo Emily Rand
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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
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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?
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In this session we will discuss….
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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
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Basic Principle: Don’t Eat Poop
Our job is to insert
a barrier
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Another Key Point: Latrines and Hand-washing
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Environmentally Sustainable Technologies
 Water Supply
 Sanitation
 Solid waste management
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Water Supply:
Source, Movement, and Treatment
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Water Sources
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Deep Ground Water Wells
Shallow Wells
Springs
Rivers
Ponds
Dew
Rain Water
Ocean
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Water Treatment
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Boiling Water
BioSand Filter
Moringa Oleifera Seeds
Air Titra
Ceramic Filters
SODIS
Chlorine
Waster Pasteurization through Improved
Cookstoves (WAPIC)
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Sand Filter
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Bio Sand Filter
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Ceramic Filters
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SODIS System
http://upload.wikimedia.org/wikipedia/commons/9/98/Pictograms_SODIS.jpg
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Sanitation
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Pit Latrine
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Latrine with Soak Pit
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Septic Tanks
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Desludging Septic Tanks
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Anaerobic Filters/Biofilters
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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
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Urine Application on Agricultural Field near
Stockholm (Sweden)
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Composting Latrines: Move the Toilet
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Composting Toilet: Move the Feces
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Continual Composting Toilet
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Wetlands for wastewater treatment
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Communal Treatment Systems
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Solid Waste
Management
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Mod 7 Ses 1
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Home Composting
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Solid Waste Options
Reduce
Recycle
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Reuse
Safe Disposal
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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.
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Questions?
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Environmentally Sustainable Water and
Sanitation Technologies:
Group 1:
Group 2:
Group 3:
Group 4:
Group 5:
Rain Tank, pp 5 -- 9
Constructed Wetland, pp 10 -- 25
Biofilter/Anaerobic filter, pp 26 -- 36
Home Composting, pp 37 -- 42
Composting Toilet, pp 43 – 49
All groups also receive “Other Technologies” pp 50 - 52
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LUNCH
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