We have been working with ...

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We have been working with bio-barriers composed of organic manure and sand to remove nitrates from pit toilet leachate. A prototype barrier has been installed at a test pit in Mulbagal town in Karnataka and trial tests with nitrate contaminated groundwater has shown that bio-barrier reduces nitrates from initial values of 170 mg/L to

The research project has been funded by Arghyam Foundation, Bangalore.

Prof Sudhakar Rao

Bangalore