Use as fertilizer Human feces

fresh feces collected child drying experiment

human feces have historically been used fertilizer centuries in form of night soil, fecal sludge, , sewage sludge. use of untreated human feces in agriculture poses significant health risks , has contributed widespread infection parasitic worms—a disease called helminthiasis, affecting on 1.5 billion people in developing countries.

feces after drying in experiment determine moisture content

there methods available safely reuse human feces in agriculture per multiple barrier concept described world health organization in 2006. approach close loop between human excreta (sanitation) , agriculture called ecological sanitation. may involve types of dry toilets such urine-diversion dry toilets or composting toilets.