Agricultural Engineering/Agronomy, Central Iowa, and BioCentury Research Farms

Corncob-Amended Woodchip Bioreactors Showed Improved Nitrate Removals in a Pilot-scale Study

Authors: Michelle L. Soupir (Iowa State University) , Ji Yeow Law (Iowa State University)

Abstract

Woodchip denitrification bioreactors are an effective practice to reduce nitrate-nitrogen export from tile drainage. However, there are challenges for wide-scale implementation due to limited woodchip supply and rising woodchip costs. Corncob, a locally available carbon source, was investigated as a potential alternative. Additionally, there are opportunities to improve nitrate removal using corncobs, which has been demonstrated in lab studies. This work aimed to evaluate nitrate removal using pilot-scale corncob-amended woodchip bioreactors.

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How to Cite: Soupir, M. L. & Law, J. (2023) “Corncob-Amended Woodchip Bioreactors Showed Improved Nitrate Removals in a Pilot-scale Study”, Iowa State University Research and Demonstration Farms Progress Reports. 2022(1).