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Biological Treatment of Feedlot Runoff

Terence J. McGhee, David S. Backer and Michael V. O'Neal
Journal (Water Pollution Control Federation)
Vol. 48, No. 1 (Jan., 1976), pp. 153-162
Stable URL: http://www.jstor.org/stable/25038475
Page Count: 10
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Biological Treatment of Feedlot Runoff
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Abstract

A 375-gal (1.42-cu m) activated sludge system incorporating air lift solids return was operated under field conditions in treating settled runoff from beef cattle feedlots. Design standards were based on earlier laboratory studies, the results of which were largely confirmed by the field study. Effective stabilization of the waste was obtained at liquid retention times of 2 days or more at an estimated cost of $0.58/animal fed. Design criteria recommended are similar to those of high-rate activated sludge with the chemical oxygen demand of the waste considered to be equivalent to the biochemical oxygen demand.

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