Process for reducing sludge derived from the treatment of...

Details Process for reducing sludge derived from the treatment of... Process for reducing sludge derived from the treatment of...

2006-12-12

2006-12-12

Barry, Chester T. (Department: 1724)

Liquid purification or separation

Processes

Treatment by living organism

C210S621000, C210S631000, C210S764000

Reexamination Certificate

active

07147780

ABSTRACT:
A method for reducing the production of sludge derived from the treatment of wastewater. The sludge is subjected to a mechanical action in the presence of a gas containing oxygen. The mechanical action is performed in such a way as to destroy the cell walls of between 5% and 80% of the microorganisms present in the sludge.

REFERENCES:
patent: 3380499 (1968-04-01), Vocci et al.
patent: 4269714 (1981-05-01), Ishikawa et al.
patent: 6337020 (2002-01-01), Thieblin et al.
patent: 2004/0241074 (2004-12-01), Yasunaga et al.
patent: WO 95 13990 (1995-05-01), None
French Search Report for PCT/FR03/51087.

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