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Discussions about design, construction, use and implementation of dry composting toilets. Dry composting toilets separate urine and feces and use both as fertilizer. Feces are composted for at least 9 months killing all pathogens. Dry composting toilets prevent contamination of ground water, save water, reduce waste and produce useful fertilizers.
1 2 By geoffrey 5 years 11 months ago
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Discussions about the production and use of rice husk ash cement, a pozzolana that can be combined with lime or ordinary portland cement to form a cementitious binder.
5 18 By Dan 6 years ago
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5 10 By geoffrey 12 years 10 months ago
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28 76 By geoffrey 4 years 10 months ago
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17 42 By geoffrey 5 years 11 months ago
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1 1 By Pilgrim (not verified) 14 years 1 month ago
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General Discussions
2 4 By geoffrey 6 years ago