Method for minimizing diurnal swing in phosphorus content of effluent streams from wastewater treating plants
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United States of America Patent
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Mar 17, 1987
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N/A
app pub date -
Apr 17, 1984
filing date -
Apr 17, 1984
priority date (Note) -
Expired
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Abstract
Abnormally lowered reduction in the rate of phosphorus removal from influent wastewater in an activated sludge system, occurring particularly following periods of increase in flow rate of wastewater entering the system, is avoided by controlling the maximum F/M in that portion of the system in which oxidation is occurring so as not to exceed 0.9 and maintaining a defined relation between the maximum and minimum F/M during any 24 hour operating period.
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