Vegetated Treatment System Models: Modeled vs. Measured Performance Helmers, Matthew Khanijo, Ishadeep Burns, Robert Moody, Lara Andersen, Daniel Helmers, Matthew Lawrence, John Pederson, Carl Andersen, Daniel
dc.contributor.department Agricultural and Biosystems Engineering 2018-02-13T07:10:13.000 2020-06-29T22:32:46Z 2020-06-29T22:32:46Z Mon Jan 01 00:00:00 UTC 2007 2013-03-11 2007-09-16
dc.description.abstract <p>Vegetated treatment systems (VTS) are designed to control runoff from beef feedlots. A VTS consists of a solids settling basin followed by either a vegetated treatment area (VTA) or a vegetated infiltration basin (VIB) followed by a VTA. Two computer models were developed at Iowa State University (ISU) to simulate traditional containment, a VTS with a settling basin and a VTA, and a VTS with a settling basin, VIB, and VTA. The models predict runoff volume and nutrient mass entering and leaving the system for a given design and specific weather conditions. In this paper, the monitored performance of four feedlot VTSs in Iowa is compared to the performance predicted by each site model run. These sites are undergoing extensive monitoring to determine the mass of nutrients discharged from each system component. Weather data including maximum temperature, minimum temperature and precipitation are also continuously recorded. System component discharge data collected at each site is compared to data generated by the model using site specific weather data for model calibration purposes. Comparisons of modeled versus monitored system performance indicate that the VTS models currently under predict discharge from the VTAs at all four sites. The VTS models also under predicted the VIB performance for both of the VIB sites. While the measured and monitored flow volumes from the SSB matched relatively well, the nutrient concentration released from the SSB was much higher than the concentration predicted by the VTS models.</p>
dc.description.comments <p>This proceeding is from CD-Rom of the International Symposium on Air Quality and Waste Management for Agriculture Conference Proceedings, 16-19 September 2007, (Broomfield, Colorado, USA) Editor, L. Moody, St. Joseph Michigan: ASABE. ,16, September 2007 . ASAE Pub #<a href="" target="_blank">701P0907cd</a>.</p>
dc.identifier archive/
dc.identifier.articleid 1258
dc.identifier.contextkey 3887904
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_conf/246
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 22:54:07 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Vegetated treatment system
dc.subject.keywords feedlot runoff control
dc.subject.keywords computer model
dc.title Vegetated Treatment System Models: Modeled vs. Measured Performance
dc.type article
dc.type.genre conference
dspace.entity.type Publication
relation.isAuthorOfPublication 26a812e6-e6de-44ff-b7ea-d2459ae1903c
relation.isAuthorOfPublication 18329603-49c4-4007-985d-2402929993a8
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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