Biological treatment of wastewater

Details Biological treatment of wastewater Biological treatment of wastewater

1985-09-13

1987-05-05

Wyse, Tom

Liquid purification or separation

Processes

Treatment by living organism

210619, 210624, 210903, 210906, C02F 312

Patent

active

046630449

ABSTRACT:
A wastewater treatment reaction vessel is operated with repeated sequences of aeration and non-aeration, using a single vessel or multiple vessels alternately, activated sludge which is acclimated for BOD reduction, nitrification or biological denitrification and phosphorus removal is absorptively reacted with influent wastewater, and the combined flow is passed into subsequent absorptive reactor volumes, reducing the BOD such that the effluent BOD is less than twenty percent that of the influent.

REFERENCES:
patent: 3915854 (1975-10-01), Torpey
patent: 4179366 (1979-12-01), Kaelin
patent: 4183809 (1980-01-01), Klapwijk et al.
patent: 4421648 (1983-12-01), Besik
patent: 4431543 (1984-02-01), Matsuo et al.
patent: 4468327 (1984-08-01), Brown et al.
patent: 4479876 (1984-10-01), Fuchs
patent: 4537682 (1985-08-01), Wong-Chong

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