Method for minimizing diurnal swing in phosphorus content of eff

Details Method for minimizing diurnal swing in phosphorus content of eff Method for minimizing diurnal swing in phosphorus content of eff

1984-04-17

1987-03-17

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210614, 210627, 210906, 210903, C02F 330

Patent

active

046505857

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.

REFERENCES:
patent: 4056465 (1977-11-01), Spector
patent: 4162153 (1979-07-01), Spector
patent: 4271026 (1981-06-01), Chen et al.
patent: 4488968 (1984-12-01), Hong et al.
Wastewater Treatment, Special Report, Jun. 1967, R. H. Marks.

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