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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 1 By Pilgrim (not verified) 6 years 5 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.
3 11 By Geoffrey 6 years 8 months ago
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5 10 By Geoffrey 6 years 8 months ago
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23 59 By jgarcias.cr 9 months 4 weeks ago
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16 37 By Geoffrey 4 years 3 months ago
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1 1 By Pilgrim (not verified) 7 years 11 months ago
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General Discussions
1 2 By Geoffrey 6 years 8 months ago