Method and device for purifying waste water comprising an...

Details Method and device for purifying waste water comprising an... Method and device for purifying waste water comprising an...

2000-04-14

2008-11-11

Barry, Chester T. (Department: 1797)

Liquid purification or separation

Processes

Treatment by living organism

C210S173000, C210S628000, C210S760000

Reissue Patent

active

RE040565

ABSTRACT:
Method for purifying waste water, whereby the waste water is subjected to a biological treatment producing sludge, part of this sludge being recycled towards the biological treatment while being subjected to ozonation combined with mechanical stirring. A mechanical stirring energy is brought in to attack the walls of the microorganisms.

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G. B. Saayman et al. “Chemical Control of Filamentous Sludge Bulking in a Full-scale Biological Nutrient Removal Activated Sludge Plant”, Proceedings of the First Australian Conference of the International Ozone Association, vol. II, pp. III-61-III-81.
Collignon et al, “Treatment of Bulking by Ozonation Mechanisms of Ozone on Microorganisms”, Tribune de l eau, No. 562-12, pp. 46-57.
Kunz et al., “Findings and Experiences from the Practical Application of Sewage Sludge Disintegration”, Schlämme, pp. 1289-1298, (Jul. 1996).

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