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Aerated Lagoons: A Report on the State of the Art
Eric H. Bartsch and Clifford W. Randall
Journal (Water Pollution Control Federation)
Vol. 43, No. 4 (Apr., 1971), pp. 699-708
Published by: Water Environment Federation
Stable URL: http://www.jstor.org/stable/25037367
Page Count: 10
You can always find the topics here!Topics: Lagoons, Biochemical oxygen demand, Wastewater, Waste removal, Oxygen, Waste lagoons, Coefficients, Tempera, Liquids, Ambient temperature
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The aerobic-anaerobic or facultative lagoon is designed with power input sufficient to create turbulence levels that insure uniform dissolved oxygen dispersion in the liquid in the lagoon. Biochemical oxygen demand primarily is a function of detention time, temperature, and the nature of the waste. Discussion of the derivation of the biochemical oxygen demand removal rate constant related to turbulence level in the lagoon, ambient temperature, influent temperature, and oxygen transfer rate is presented. Data from a four-lagoon system treating wastewater from a textile-finishing plant is presented. The data from lagoon operation in fall and winter months indicated that system efficiency was significantly reduced at temperatures below 14.4°C. No significant change was observed at temperatures above 14.4°C. Aerated lagoons may not be a practical treatment method without provisions for modifications during winter months.
Journal (Water Pollution Control Federation) © 1971 Water Environment Federation