Vegetative Treatment Systems for Open Feedlot Runoff: Project Design and Monitoring Methods for Five Commercial Beef Feedlots

Moody, Lara B.; Pederson, Carl H.; Burns, Robert T.; Khanijo, Ishadeep

doi:10.13031/2013.21143

Cited by 18 publications

(2 citation statements)

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“…Federal guidelines allow for the use and evaluation of VTS as an alternative to runoff retention ponds (Bond et Passive, gravity-based systems have been proposed as a cost-effective alternative for larger feedlots (Woodbury et al, 2003). Active systems have also been proposed and evaluated that include valves, pumps, or sprinkler systems to manage and apply runoff to the vegetated areas (Bond et al, 2010;Henry, 2007, 2010;Koelsch et al, 2006;Melvin and Lorimor, 2007;Moody et al, 2006;Ostrem et al, 2010;Powers et al, 2010) Berry et al (2007) evaluated a passive, gravity-fed brome grass VTS and found that bacterial and protozoal pathogen numbers generally declined over time, although some manure-borne bacteria were able to survive in the soil for extended periods. Andersen et al (2013) evaluated the performance of six commercial VTS in Iowa for nutrient parameters; however, microbial data were not collected in that study.…”

Section: Evaluation Of Fecal Indicators and Pathogens In A Beef Cattlmentioning

confidence: 99%

“…The VTS couples livestock and crop systems by quickly applying feedlot runoff to fields and is designed to comply with USEPA National Pollutant Discharge Elimination System requirements for CAFOs (Bond et al, 2011;Koelsch et al, 2006). Federal guidelines allow for the use and evaluation of VTS as an alternative to runoff retention ponds (Bond et al, 2010;Khanijo et al, 2007;Moody et al, 2006;Ostrem et al, 2010).…”

Section: Evaluation Of Fecal Indicators and Pathogens In A Beef Cattlmentioning

confidence: 99%

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Evaluation of Fecal Indicators and Pathogens in a Beef Cattle Feedlot Vegetative Treatment System

Durso¹,

Miller²,

Snow

et al. 2017

J of Env Quality

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Runoff from open-lot animal feeding areas contains microorganisms that may adversely affect human and animal health if not properly managed. One alternative to full manure containment systems is a vegetative treatment system (VTS) that collects runoff in a sediment basin and then applies it to a perennial vegetation (grass) treatment area that is harvested for hay. Little is known regarding the efficacy of large-scale commercial VTSs for the removal of microbial contaminants. In this study, an active, pump-based VTS designed and built for a 1200-head beef cattle feedlot operation was examined to determine the effects of repeated feedlot runoff application on fecal indicator microorganisms and pathogens over shortterm (2 wk) and long-term (3 yr) operations and whether fecal bacteria were infiltrating into deeper soils within the treatment area. In a short-term study, fecal bacteria and pathogen numbers declined over time in soil. Measurements of total coliforms and Enterococcus counts taken on control soils were not effective as fecal indicators. The repeated application of manure-impacted runoff as irrigation water did not enrich the pathogens or fecal indicators in the soil, and no evidence was seen to indicate that pathogens were moving into the deeper soil at this site. These results indicate that large-scale, active VTSs reduce the potential for environmental contamination by manure-associated bacteria. Also, this study has implications to full-containment systems that apply runoff water to land application areas (cropland) and the fate of pathogens in the soils of land application sites.

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Section: Evaluation Of Fecal Indicators and Pathogens In A Beef Cattlmentioning

confidence: 99%

Section: Evaluation Of Fecal Indicators and Pathogens In A Beef Cattlmentioning

confidence: 99%

Evaluation of Fecal Indicators and Pathogens in a Beef Cattle Feedlot Vegetative Treatment System

Durso¹,

Miller²,

Snow

et al. 2017

J of Env Quality

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Impact of system management on vegetative treatment system effluent concentrations

Andersen

Burns

Moody

et al. 2013

Journal of Environmental Management

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Vegetated Treatment System Models: Modeled vs. Measured Performance

Khanijo¹,

Burns²,

Moody³

et al. 2007

International Symposium on Air Quality and Waste Management for Agriculture, 16-19 September 2007, Broomfield, Colorado

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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.

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Vegetative Treatment Systems for Open Feedlot Runoff: Project Design and Monitoring Methods for Five Commercial Beef Feedlots

Cited by 18 publications

References 0 publications

Evaluation of Fecal Indicators and Pathogens in a Beef Cattle Feedlot Vegetative Treatment System

Evaluation of Fecal Indicators and Pathogens in a Beef Cattle Feedlot Vegetative Treatment System

Impact of system management on vegetative treatment system effluent concentrations

Vegetated Treatment System Models: Modeled vs. Measured Performance

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