Sludge quality

Details Sludge quality Sludge quality

2005-06-21

2009-12-29

Hruskoci, Peter A (Department: 1797)

Liquid purification or separation

Processes

Treatment by living organism

C210S631000, C210S764000, C422S028000

Reexamination Certificate

active

07638055

ABSTRACT:
The invention provides the use of an effective amount of a non-oxidizing water-soluble biocide in the improvement of sludge quality by reducing the sludge tendency towards bulking, wherein the biocide comprises an alkyl-substituted phosphonium compound, an alkyl-substituted phosphine, an alkyl-substituted phosphine condensate, or a polymeric quaternary ammonium compound.

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International Search Report corresponding to PCT/GB 2005/002439 issued on Sep. 7, 2005, 2 pages.

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