Simple composting toilets final
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Transcript of Simple composting toilets final
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A Feasible Alternative
Simple Composting Toilets
Engineering 308Heather Weiche & Jeremy Battles
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Composting toilets take human waste and turn it into a nutrient rich fertilizer.
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Reasons for using a composting toilet
With a composting toilet we have an intact system. No pollution from our waste products.
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Prevent sewage run offinto water ways.Conserving waterNo need for chemicalfertilizers
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Management
(Source: Sustainable sanitation on flickr.com)
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Aeration
More is better!
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC170689/pdf/aem00013-0145.pdf
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Hand-crank turns pile for aeration
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Carbon/Nitrogen Ratio
(1:25 optimal)
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Size
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Moisture
Hand pump re-circulates fluid from the bottom.
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Applications (HSU)
CCAT Box Duchamp de Loo
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Applications (Commercial)
Sun Mar Phoenix Biolet
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The Humanure Handbook: A guide to composting human manure. By Joseph Jenkins
The Toilet Papers: Recycling Waste and Conserving Water. By Sim Van der Ryn
Book References