Use as fertilizer Fresh<unk>  collected from a child for a drying experiment<unk>  has historically been used as fertilizer for centuries in the form of night soil, fecal sludge, and sewage sludge. The use of untreated<unk>  in agriculture poses significant health risks and has contributed to widespread infection with parasitic worms—a disease called helminthiasis, affecting over 1.5 billion people in developing countries.<unk>  after drying in an experiment to determine moisture content There are methods available to safely reuse<unk>  in agriculture as per the "multiple barrier concept" described by the World Health Organization in 2006. The approach to "close the loop" between<unk>  excreta (sanitation) and agriculture is also called ecological sanitation. It may involve certain types of dry toilets such as urine-diversion dry toilets or composting toilets. Fecal transplants In<unk> s, fecal transplants (or stool transplant) is the process of transplantation of fecal bacteria from a healthy individual into a recipient who is suffering from a certain disease, such as irritable bowel syndrome. The resulting inoculation of healthy gut flora can sometimes improve the physiology of the recipient gut. Fecal bacteriotherapy—also known as a fecal transplant—is a medical procedure wherein fecal bacteria are transplanted from a healthy individual into a patient. Recent research indicates that this may be a valuable method to re-establish normal gut cultures that have been destroyed through the use of antibiotics or some other medical treatments. Biogas production The biogas produced from<unk>  when it is contained in sewage and treated in an anaerobic digestion process could be worth as much as US$9.5 billion. Washington DC plans to produce biogas from sewage sludge, the by-product of sewage treatment, which will save 13 million dollars a year. Teams from the Cambridge Development Initiative, led by Stanford researcher Maisam Pyarali, began a project in 2015 to convert sewage from the slums of Dar Es Salaam into biogas and fertilizer with solar concentrators.
Human feces
Feces
Fecalith
Human liquor
Bovine Meat and Milk Factors
Raw water
Breast milk
Witch's milk