Blue Diversion: A New Approach To Sanitation In Informal Settlements

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dc.contributor.authorLarsen, Tove A.
dc.contributor.authorGebauer, Heiko
dc.contributor.authorGründl, Harald
dc.contributor.authorKünzle, Rahel
dc.contributor.authorLüthi, Christoph
dc.contributor.authorMessmer, Ulrike
dc.contributor.authorMorgenroth, Eberhard
dc.contributor.authorNiwagaba, Charles B.
dc.contributor.authorRanner, Bernhard
dc.date.accessioned2022-02-02T18:18:24Z
dc.date.available2022-02-02T18:18:24Z
dc.date.issued2015
dc.description.abstractThe sanitation concept ‘Blue Diversion’ (www.bluediversiontoilet.com) was developed as a possible answer to the sanitation crisis in urban slums. It is based on two main elements: (1) diversion of urine, feces, and water at the source as the basis for efficient resource recovery, and (2) linking different scales (family toilets and semi-centralized resource recovery). Our objective was to develop an attractive ‘grid-free’ (i.e. functioning without piped water, sewer, and electrical grid) dry urine-diverting toilet, which provides water (through recycling on-site) for flushing, personal hygiene (anal cleansing and menstrual hygiene), and hand washing. This service, including the entire sanitation value chain, should eventually be made available as a profitable business with total user fees of 5 ¢/p/d. The results presented in this paper are (1) a toilet design model, (2) the development of a new type of membrane bioreactor for treating flush and wash water, (3) main results of a geographic information system-based stochastic service model to link the family-scale toilet to a community-scale Resource Recovery Plant, and (4) a business model that yields maximum profit for the local community. We conclude that the approach is feasible, but challenging from a technical as well as an organizational point of view.en_US
dc.identifier.citationLarsen, T. A., Gebauer, H., Gründl, H., Künzle, R., Lüthi, C., Messmer, U., ... & Ranner, B. (2015). Blue diversion: a new approach to sanitation in informal settlements. Journal of Water, sanitation and Hygiene for Development, 5(1), 64-71.https://doi.org/10.2166/washdev.2014.115en_US
dc.identifier.issn2043-9083
dc.identifier.urihttps://nru.uncst.go.ug/xmlui/handle/123456789/1783
dc.language.isoenen_US
dc.publisherJournal of Water, sanitation and Hygiene for Developmenten_US
dc.subjectinnovation, resource recovery, source separation, toilet design, urban, wastewater treatmenten_US
dc.titleBlue Diversion: A New Approach To Sanitation In Informal Settlementsen_US
dc.typeArticleen_US
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