2.6 billion people still do not have basic sanitation facilities, wastewater treatment plants or sewage systems in their cities, nor even toilets or latrines ; 1.2 billion people are thus still obliged to defecate outdoors, with all the pollution and health hazards this engenders.

Here, you will find simple, ecological, low-cost solutions for the construction of several types of latrines and the transportation and treatment of effluents.