Friday, January 29, 2010

Arsenic Removal without Chemical

An international research team comprising researchers from India, Netherlands, Germany and UK has designed a chemical free method to purify water laced with arsenic. Six such plants are now in operation a village of West Bengal. The study was conducted in Kasimpore, a village in North 24 Parganas District, approximately 25 km from Kolkata. In all cases, total As in treated water was less than the WHO guideline value of 10 microgram per litre.


The chemical free plant produces no sludge and the operation cost is 1.0 US dollar per day for producing 2000 L of potable water. The findings of the study have been published in the December 2009 issue of Environmental Pollution.

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