Click on “Download PDF” for the PDF version or on the title for the HTML version. If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options. Decentralized Wastewater Treatment and Reuse System in Rural India Case StudyPublished by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org Citation: 2017 ASABE Annual International Meeting 1700382.(doi:10.13031/aim.201700382)Authors: Wilf Stefan, Gillian Dumencu, Yuxin Wang Keywords: Decentralized systems, Open-defecation free, Wastewater reuse. The project was completed early in 2016. The elements of the project include: the toilet, shower and wash basin structure; digester tank; collection network; wastewater treatment bioreactor; and reuse of the effluent discharge. The toilets are standalone structures not connected to the individual homes. In addition to the toilet, the structure includes a hand washing sink, a shower, and a wash basin for washing clothes and dishes. A 500 liter water tank is supported by the structure. The digester tanks receiving the raw wastewater provide anaerobic digestion and settling of the solids so that only solids-free effluent enters the collection network. The collection network is comprised of small bore HDPE piping. The benefit of using fused HDPE piping is that there will be no infiltration/inflow and it is flexible, allowing for an easier installation in an existing site. The wastewater treatment bioreactor is an enhanced vertical flow Continuous Aerobic Multistage Unsaturated System-Soil Bio Technology (CAMUS-SBT) wetland designed, patented and installed by Vision Earthcare (VEC), part of the Business Development Branch of the IIT Bombay University in Mumbai, India. The effluent from the system will be reused for irrigation of local crops. The project was designed in Canada by Clearford Water Systems. The funding was provided by the CSR budget of Infrastructure Leasing & Financial Services (IL&FS) in India. The toilet-shower-wash station concept and design was finalized through collaboration between Clearford and an Indian Architect. The project was completed with all Indian labour and project management. The wastewater treatment bioreactor was designed and installed by Vision Earth Care, part of ITT Bombay University of Mumbai. The Narendra Modi government‘s Swachh Bharat program to eliminate open defecation by 2019 has pushed sanitation to the forefront of national concerns. Corporate Social Responsibility legislation has created a pool of funds available for these sanitation projects. (Download PDF) (Export to EndNotes)
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