Process for the anaerobic digestion of liquid wastes

Details Process for the anaerobic digestion of liquid wastes Process for the anaerobic digestion of liquid wastes

1996-03-18

1997-01-07

Hruskoci, Peter A.

Liquid purification or separation

Processes

Treatment by living organism

210613, 210631, C02F 328, C02F 152

Patent

active

055913423

ABSTRACT:
An anaerobic digestion process for the removal of the organic matter contained in a liquid waste, notably raw water, subjects the waste to an acidogenesis stage and then to a methanogenesis stage. The waste, which has been subjected to the acidogenesis stage, is subjected to a stage of separation by settling, before the methanogenesis stage. At least part of the sludge separates during this intermediate stage. Part of the treated water is recycled to the acidogenesis stage.

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patent: 4981593 (1991-01-01), Priestley et al.
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patent: 5076927 (1991-12-01), Hunter
patent: 5290450 (1994-03-01), Kobayashi

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