Apparatus for the biological purification of waste water

Details Apparatus for the biological purification of waste water Apparatus for the biological purification of waste water

1999-05-06

2000-05-16

Wyse, Thomas G.

Liquid purification or separation

With gas separator

210218, 210256, 2101951, C02F 330, C02F 312, C02F 124

Patent

active

060632739

ABSTRACT:
For the biological purification of waste water, use is made of a column containing a UASB reactor (1) at the bottom and an aerobic reactor (2) at the top. The two reactors (1; 2) are separated from one another by a partition (12) in which openings are provided to allow the anaerobic effluent through into the aerobic reactor. The partition (12) is situated at some distance above the gas collection means (8) in order to form a buffer zone (13) for anaerobic sludge which has flowed through. Preferably, a floatation apparatus (3) is mounted on the aerobic reactor in order to separate biomass from the purified water.

REFERENCES:
patent: 4670140 (1987-06-01), Aivasidis et al.
patent: 4735723 (1988-04-01), Mulder
patent: 4735724 (1988-04-01), Chynoweth et al.
patent: 5116505 (1992-05-01), Lourens
patent: 5147547 (1992-09-01), Savall et al.
patent: 5230794 (1993-07-01), Heijnen et al.
patent: 5306422 (1994-04-01), Krofta
patent: 5500118 (1996-03-01), Coenen et al.
patent: 5855785 (1999-01-01), Heijnen et al.
patent: 5972219 (1999-10-01), Habets et al.

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