Treatment of sewage sludge

Details Treatment of sewage sludge Treatment of sewage sludge

2004-06-21

2009-12-29

Hruskoci, Peter A (Department: 1797)

Liquid purification or separation

Processes

Treatment by living organism

C210S764000, C422S028000

Reexamination Certificate

active

07638056

ABSTRACT:
The present invention provides a method of reducing the pathogen content of sewage sludge comprising (a) adding to the sludge an effective amount of a phosphorous-containing compound and (b) keeping the phosphorous-containing compound in contact with the sludge for a sufficient time to reduce the amount of pathogens present in the sludge by an amount equivalent to a logarithmic reduction of 2 or more.

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International Search Resort issued Nov. 5, 2004 in PCT/GB2004/002660.

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