Method for purifying waste water with added oxidizing agent

Details Method for purifying waste water with added oxidizing agent Method for purifying waste water with added oxidizing agent

2011-01-11

2011-01-11

Barry, Chester T (Department: 1797)

Liquid purification or separation

Processes

Treatment by living organism

C210S620000

Reexamination Certificate

active

07867397

ABSTRACT:
The invention concerns a method for purifying wastewater loaded with organic matter, said method including: a step of contacting wastewater with a biological culture containing a purifying biomass and a step of separating performed by filtration through organic or inorganic membranes. The invention is characterized in that at least part of the biological culture is subjected to an oxidative stress step enabling a liquor to be obtained by the action of at least one oxidizing agent used in small amount so as to preserve the biological activity of the purifying biomass while modifying the microbial floc to make it denser.

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patent: 2002/0158009 (2002-10-01), Khudenko
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patent: 2 843 106 (2004-02-01), None
patent: WO-01 21535 (2001-03-01), None

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