Anaerobic lagoons for treatment of high-strength organic wastes

A study on hog waste was conducted to determine the amount of biochemical oxygen demand removed by settling and direct degradation of incoming organics. Variables studied included temperature and detention time. Nutrients were not a concern of the study because preliminary tests showed that nitrogen...

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Bibliographic Details
Published in:Journal - Water Pollution Control Federation 1973-01, Vol.45 (11), p.2397-2403
Main Authors: Oldham, W.K, Nemeth, L
Format: Article
Language:English
Subjects:
Biochemical oxygen demand
Biodegradation
Design engineering
environmental science
Lagoons
Liquids
natural resource management
pollution
Sludge
Waste gases
Waste lagoons
Waste removal
Waste treatment
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Summary:A study on hog waste was conducted to determine the amount of biochemical oxygen demand removed by settling and direct degradation of incoming organics. Variables studied included temperature and detention time. Nutrients were not a concern of the study because preliminary tests showed that nitrogen and phosphorous were present in concentrations sufficient to support anaerobic digestion. The results indicated that, at temperatures above 15°C, a biochemical oxygen demand removal efficiency of over 80 percent could be maintained in a single-cell treatment unit. For a longer detention time, direct degradation would be 70 rather than 30 percent, accumulating sludge would continue to decompose, and sludge removal frequency would decrease.
ISSN:0043-1303
2327-7467