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Case Study

Biofiltration of Rice-Paddy Runoff in India

Waterborne staff collaborated with a team of students and professors at the GB Pant University of Agriculture and Technology in India. The team worked on the design, optimization and installation of a biofilter that removes nitrates and other chemicals from rice paddy runoff.

Our Findings

The team found biofilters to be very effective in removing nitrate through biodegradation. They provided a habitat for microorganisms along with a carbon food source. Research continues to explore the possibility of using biofilters to remove other agricultural chemicals from runoff.

The inflow, outflow, precipitation and other data collected at the biofilter are being monitored using solar-powered data loggers with a satellite modem. This enables the data to be viewed via a website anywhere in the world in near real time.

 

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