The Government of Kerala became open defecation free in 2016, allowing it to tackle the next challenge on the sanitation cycle - Faecal Sludge management. With funding support and supervision from UNICEF, and technical implementation by PriMove and TBF Environmental Solutions, Wayanad district constructed a Faecal Sludge Treatment Plant (FSTP) that uses earthworms to filter through the waste and produce safe compost and gray water as a result.
TBF Environmental Consultants and UNICEF (2019). Using Vermifiltration for Faecal Sludge Management TBF Environmental Consultants and UNICEF
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