Farm

Northeast Research and Demonstration Farm

Extension Number

RFR A1099

Publication Date

2011

Abstract

Denitrification bioreactors for removal of nitrate in tile drainage are new water quality technology that has rapidly gained interest in Iowa. A bioreactor is composed of an excavated trench filled with woodchips that are colonized by denitrifying bacteria. As drainage waters containing nitrate flow by these “good” bacteria, they convert the nitrate in the water to nitrogen gas. A critical component in evaluating the performance of these treatment systems is the documentation not only of nitrate concentrations in the drainage water, but also the flow rate and volume of the water treated in the bioreactor.

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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