Modified Bioretention for Enhanced Nitrogen Removal from Agricultural Runoff

AbstractBioretention has been found to treat many pollutants, but nitrogen is difficult to control. A modified bioretention system with an internal water storage zone to encourage denitrification was installed in a silage storage area at the University of Connecticut in Storrs, CT. Flow volumes were...

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Bibliographic Details
Published in:Journal of environmental engineering (New York, N.Y.) N.Y.), 2016-12, Vol.142 (12)
Main Author: Dietz, Michael E
Format: Article
Language:English
Subjects:
Inlets
Nitrogen
Nitrogen removal
Outlets
Pollutants
Receiving
Retention basins
Silage
Technical Note
Technical Notes
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Summary:AbstractBioretention has been found to treat many pollutants, but nitrogen is difficult to control. A modified bioretention system with an internal water storage zone to encourage denitrification was installed in a silage storage area at the University of Connecticut in Storrs, CT. Flow volumes were measured and flow-weighted samples were analyzed for total nitrogen (TN). The median TN concentration at the inlet was 12.3  mg L−1 (mean 12.3), whereas median outlet TN concentration was 4.0  mg L−1 (mean 5.1). Outlet concentrations were significantly (p
ISSN:0733-9372
1943-7870
DOI:10.1061/(ASCE)EE.1943-7870.0001144