1. Water conservation due to greywater treatment and reuse in urban setting with specific context to developing countries.
- Author
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Mandal, Deepika, Labhasetwar, Pawan, Dhone, Shankar, Dubey, Ajay Shankar, Shinde, Gangadhar, and Wate, Satish
- Subjects
WATER conservation ,GRAYWATER (Domestic wastewater) ,SEWAGE purification ,WATER reuse ,PER capita ,POPULATION ,WATER consumption ,PERFORMANCE evaluation ,DEVELOPING countries - Abstract
Abstract: In India, the per capita water availability is reducing day by day due to rapid growth in population and increasing water demand. Greywater treatment and reuse is one of the feasible options in developing countries like India to overcome this problem. A greywater collection, treatment and reuse system was designed and implemented in an urban household having a water requirement of 165liter per capita per day (lpcd) and a greywater generation rate of 80lpcd. An upflow–downflow greywater treatment plant having a screening, sedimentation, filtration and disinfection as major treatment processes was constructed and treated greywater is used for toilet flushing and to irrigate the vegetables in the backyard of the household. Greywater characterisation indicates that COD and BOD are sufficiently reduced during the treatment and there is also substantially reduction in Escherichia coli count. The payback period of this greywater treatment and reuse system is estimated to be 1.6 year. [Copyright &y& Elsevier]
- Published
- 2011
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