Feedback system for enhancing elimination of biomass in...

Details Feedback system for enhancing elimination of biomass in... Feedback system for enhancing elimination of biomass in...

2008-10-10

2010-06-15

Prince, Fred (Department: 1797)

Liquid purification or separation

Processes

Treatment by living organism

C210S605000, C210S613000, C210S623000, C210S630000

Reexamination Certificate

active

07736511

ABSTRACT:
Already-treated sludge is fed back into incoming sewage, and is effective to supply nutrients needed for the microbiological breakdown of the sludge. The feedback sludge has a solids content of 10% or more, and has been sheared and heated to drive its viscosity down to 10,000 cP or less. In sludge done that way, nutrients are preserved and presented to the sewage to be treated in highly liquidized and solubilized form, whereby the nutrients are very bio-available to the microbes in the sewage. Large improvements in the elimination of biomass can result.

REFERENCES:
patent: 4443337 (1984-04-01), Otani et al.
patent: 4460470 (1984-07-01), Reimann
patent: 5846425 (1998-12-01), Whiteman
patent: 5851404 (1998-12-01), Christy et al.
patent: 6808636 (2004-10-01), Ward et al.
patent: 2002/0185456 (2002-12-01), Ward et al.
patent: 2005/0040103 (2005-02-01), Abu-Orf et al.

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