Steel trap for phosphorous runoff

Steel trap for phosphorous runoff

AFTER nitrogen and phosphorous nourish field crops, any excess amounts may drain into waterways. Woodchip bioreactors have proved useful in removing nitrates from tile drainage water, but researchers are still searching for low-cost methods of removing phosphates.

Now, South Dakota State University (SDSU) assistant professor of civil and environmental engineering Guanghui Hua is using steel byproducts to trap phosphates in si

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