Transcript MARC Virtual Tour

Virtual Tour of a Vegetative
Treatment System at the USDA
Meat Animal Research Center
Feedlot
Design
Vegetative Treatment Area
Water Flow
Feedlot Pens
Performance
Summary
The system provided very good solids
removal resulting in a reduction of total
suspended solids by 80%, volatile
suspended solids by 67%, chemical oxygen
demand by 59%, and total nitrogen by 54%
 Hay production decreased total nitrogen in
the VTA
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Summary
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However, disproportionate deposition of runoff
water increases surface soil nitrogen
concentrations near the basin discharge tubes
Elevation shifts of the inlets of the discharge tubes
has caused disproportionate discharge to the VTA
Adding adjustable weir plates to regulate flow on
inlet of discharge tubes is recommended