Sequencing batch treatment of wastewaters in rural areas [of the United States]

This study investigated the development of a low-cost treatment system that does not allow algae growth and satisfies effluent limitations expected in 1983 on 5-day biochemical oxygen demand, suspended solids, ammonia, and, if possible, nitrate. The batch system finally developed was a single tank w...

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Bibliographic Details
Published in:Journal - Water Pollution Control Federation 1979-02, Vol.51 (2), p.244-254
Main Authors: Irvine, R.L, Miller, G, Bhamrah, A.S
Format: Article
Language:English
Subjects:
Activated sludge
Aeration
Ammonia
Lagoons
Nitrates
Nitrification
Nitrites
Nitrogen
Wastewater
Wastewater treatment
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Summary:This study investigated the development of a low-cost treatment system that does not allow algae growth and satisfies effluent limitations expected in 1983 on 5-day biochemical oxygen demand, suspended solids, ammonia, and, if possible, nitrate. The batch system finally developed was a single tank with a minimum mixed liquor suspended solids concentration of approximately 1 500 mg/l. The results from bench-scale batch tanks indicate that 5-day biochemical oxygen demand, suspended solids, and ammonia limitations can be easily met over a wide range of temperatures with crude tank sizing and little or no sophistication of operation. Denitrification, however, is not easily accomplished without careful tank sizing and control of mixing and aeration and appears to depend strongly on the soluble fraction of the 5-day biochemical oxygen demand in the waste.
ISSN:0043-1303
2327-7467