=== Sulabh toilets===
The Indian NGO [http://www.sulabhinternational.org/ Sulabh International] designed a [http://www.sulabhinternational.org/content/two-pit-system system] using pour flush toilets and twin pits for treatment of sanitation products. They have constructed over a million toilets in India. They further designed a system which converts the effluent into biogas. These technologies are now used by 10 million people in rural India. This contributed greatly to the increase in number of people using a toilet, from 27% to 59% in the last 5 years. They have also built public toilets in Afghanistan, Bhutan, Ghana, Ethiopia, Madagascar, Mozambique, Laos, and Cambodia. They are planning to start up Sulabh Sanitation centres in 50 more countries soon. ===References===* Franceys, R., Pickford, J. and Reed, R. (1992). A Guide to the Development of on-Site Sanitation. WHO, Geneva, CH.:Available at: [http://www.susana.org/library susana.org/library] * Mara, D. D. (1985). The Design of Pour-Flush Latrines. UNDP Interregional Project INT/81/047, The World Bank and UNDP, Washington, D.C., US.: Available at: [http://documents.worldbank.org/curated/en/home documents.worldbank.org/curated/en/home] * Mara, D. D. (1996). Low-Cost Urban Sanitation. Wiley, Chichester, UK. * Roy, A. K., Chatterjee, P. K., Gupta, K. N., Khare, S. T., Rau, B. B. and Singh, R. S. (1984). Manual on the Design, Construction and Maintenance of Low-Cost Pour-Flush Waterseal Latrines in India. UNDP Interregional Project INT/81/047, The World Bank and UNDP, Washington, D.C., US.:Available at: [http://documents.worldbank.org/curated/en/home documents.worldbank.org/curated/en/home]
===Acknowledgements===
{{:Acknowledgements Sanitation}}