This weblink gives information on properties of colloids, their relationship with coagulation and effects of zeta potential on coagulation.
Library
The national rural sanitation programme of the Indian government has evolved into the Total Sanitation Campaign, which successfully encourages households to finance their own toilets while giving financial incentives to poorer people.
GANGULY, S.C. (2008): India's national sanitation and hygiene programme: From experience to policy West Bengal and Maharashtra models provide keys to success. In: WATERAID: URL [Accessed: 02.08.2010]Mugu and Humla are among the least developed of the 75 districts of Nepal and have a sanitation coverage of 10 % only. This study assessed the sanitation situation of the area gives recommendations to for software and hardware approaches in order to reach an overall sanitation coverage.
TILLET, W. (2008): Appropriate Approaches to Hygiene and Environmental Sanitation in Remote Communities of Mugu and Humla Districts, Western Nepal. Action Contre la Faim (ACF) URL [Accessed: 02.08.2010]The technical note was produced as a joint United Nations Development Programme and World Bank contribution to the International Drinking Water Supply and Sanitation Decade. It sets out guidelines for the design of pour-flush latrines, based upon TAG's (Technology Advisory Group) experience in India, Brazil and elsewhere. These guidelines have been written especially for use in developing countries. Consequently, emphasis has been placed on achieving simplicity of design consistent with reliability of operation.
MARA, D.D. (1985): The Design of Pour-Flush Latrines. (= TAG Technical Note No. 15 ). United Nations Development Programme (UNDP) and World Bank URL [Accessed: 02.08.2010]Wikipedia article on heat engines.
This video explains that artificial fertilizer is a resource as limited as oil, and that we all produce a fertilizer every day that could replace it: urine.
A PDF presentation describing the sanitation approach (rainwater harvesting, twin-pit pour-flush toilets, ecosan toilets) in Karnataka, India.
UNKNOWN (n.y): Eco-Sanitation from waste to resource. URL [Accessed: 02.08.2010]