compost-based toilet systemhumanurehandbook.com/downloads/santo_village_composting_ppt.pdf · of...
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Santo Village, Haiti
Compost-Based
Toilet System
5th International Dry Toilet Conference Tampere University of Applied Sciences
19th – 22nd of August, 2015 Joseph Jenkins, Inc.
EcologicalSanitation.com
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Nature suggests that we
bury odorous things.
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We bury corpses.
We deposit fecal material into holes in the ground.
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Science shows us a new way
to bury organic material.
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Instead of burying with dirt, we can
bury with materials derived
from plants.
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When we bury odorous organic materials with
plant material, we promote the growth of
heat producing bacteria.
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The resulting organic mass,
called a compost pile, destroys
human disease organisms.
Researchers include Gotaas, (1956 W.H.O.);
Feachem, et al. (1980 World Bank). Franceys, R. et al. (1992 W.H.O.) and others.
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This is the basis of sanitation and the promotion of
public health.
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“Composting” by definition, is
1) Managed
2) Aerobic
3) Produces biological heat
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Most “dry toilets” are erroneously called
“composting” toilets, but they do not compost. They
dessicate, dehydrate, and decompose the
toilet material.
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Organic materials, including toilet materials, are composted simply by:
1)COLLECTING IN CONTAINERS 2) PILING IN COMPOST BINS
3)COVERING WITH PLANT MATERIAL
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Compost toilets collect all toilet materials, including urine and toilet paper.
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Here, a 20-liter receptacle under the toilet seat collects the feces, urine and paper. Urine separation is not necessary when the collected material is being composted.
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The contents are covered with the carbon-based plant material, which acts as a biofilter to prevent odor. The receptacle is easily removable.
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The Santo Village in Leogane, Haiti, was a Habitat for Humanity planned Village for displaced families.
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Jimmy Carter even worked at the site.
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Their first sanitation choice was the Otji dry toilet, a urine separating, dehydrating toilet.
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The expensive OTJI system failed, primarily due to odors, management issues, and environmental threats. GiveLove.org then set up a true compost sanitation system in the Village.
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True Composting Step 1: Collect the organic material.
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Step 2: Obtain appropriate cover material.
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Step 3: Pile the organic material in bins. Start by training.
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Bins can be built with recycled pallets. Begin with a “biological sponge.”
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Each compost bin had its own label.
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Toilet material is layered by the trained team, using bagasse as cover material.
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Compost receptacles need to be rinsed. The water is deposited into the bins.
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250 households fill a 10 cubic meter bin every month.
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The village has two compost sites; both are fenced and locked.
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Toilet material is collected twice a week. Users bring their full receptacles to the compost yards and swap them for clean ones.
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This compost system requires no turning.
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A compost shed at each site stores tools and equipment.
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After a minimum of nine months, a beautiful, sanitary compost is produced. There is no odor.
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Public education helps to improve acceptance of this revolutionary sanitation system.
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Instructions are posted inside each toilet.
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Composting recycles organic material. There is no waste, no pollution, and no disposal.
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The Santo Village project was created by GiveLove.org:
Patricia Arquette (Founder), Alisa Keesey (Program Director), Jean Lucho (Compost Instructor)
GiveLove.org is now working in
Nicaragua and India.
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Download the full, illustrated paper on the Santo Village compost sanitation project: humanurehandbook.com/downloads/Santo_Paper.pdf
QUESTIONS?
Presentation by Joe Jenkins Joseph Jenkins, Inc., USA
EcologicalSanitation.com