Biological phosphorus removal from waste water

Details Biological phosphorus removal from waste water Biological phosphorus removal from waste water

1995-06-19

1996-08-06

Wyse, Thomas G.

Liquid purification or separation

Processes

Treatment by living organism

210625, 210903, 210906, C02F 330, C02F 334

Patent

active

055430511

ABSTRACT:
A method for waste water (1) treatment comprising the steps of: (a) combining waste water (1) with activated sludge (4) under anaerobic conditions; (b) transferring the products of step (a) to a container (B); (c) aerating the contents of the container (B); (d) allowing the contents of the container to settle and separate into an effluent layer (3) and an activated sludge layer; (e) decanting at least some of the treated effluent (3) and (f) recycling at least a proportion of the activated sludge (4) from step (d) to provide the sludge of step (a).

REFERENCES:
patent: 4315821 (1982-02-01), Climenhage
patent: 4500429 (1985-02-01), Reimann et al.
patent: 4885093 (1989-12-01), Schoenberger
patent: 5182021 (1993-01-01), Spector
patent: 5213681 (1993-05-01), Kos
patent: 5376275 (1994-12-01), Roper
patent: 5380438 (1995-01-01), Nungesser

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