Sustainable Solutions for Sanitation Challenges in Informal Settlements of Kigali, Rwanda, 2015. Institute of Policy Analysis and Research – Rwanda.
Dwellers of informal settlements are inclined over time to reject traditional pit latrines for alternative low-cost options that are more sustainable, such as innovative decentralized sanitation and reuse (DeSaR) and water serving sanitation technologies. This is important because these options can play a part in reduction of over exploitation of natural water sources, which continue to be scarce, as a result of population pressure in the country.
DeSaR technologies are also appropriate in informal settlements of Kigali because they occupy less space, do not require emptying by vacuum tankers, pre treatment/composting, provides opportunity for nutrients re-cycling which is environmentally sustainable and, if well maintained, can have minimal harmful effects.