Anaerobic purification device

Details Anaerobic purification device Anaerobic purification device

2005-06-10

2011-11-29

Prince, Fred (Department: 1778)

Liquid purification or separation

Processes

Treatment by living organism

C210S188000

Reexamination Certificate

active

08066878

ABSTRACT:
The invention relates to an anaerobic purification device for purification of influent. The device has a reactor tank, an inlet for introducing influent into the tank, a water collecting device for collecting purified water, a gas collecting system for collecting gas from the fluid contained in the reactor, a gas-liquid separation device, a riser for passing liquid into the separation device by gas lifting action caused by gas collected in the gas collecting system, and a downer for returning liquid and sludge from the separation device into the lower tank section. According to the invention this device is characterized in that it is arranged to define, in the downer at the level of the liquid surface, a head pressure of, at least, approximately 1.4 m water column (approximately 0.14 bar). The invention also relates to a method for anaerobic purification device for purification of influent.

REFERENCES:
patent: 4632692 (1986-12-01), Lebesgue et al.
patent: 6063273 (2000-05-01), Habets et al.
patent: 6602416 (2003-08-01), Rossmanith
patent: 2002/0000409 (2002-01-01), Lanting et al.
patent: 2003/0085171 (2003-05-01), Khudenko
patent: 170332 (1986-02-01), None
patent: 7-204682 (1995-08-01), None
patent: 92/01637 (1992-02-01), None

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