Method and apparatus for processing sludge

Details Method and apparatus for processing sludge Method and apparatus for processing sludge

1994-01-06

1995-08-15

Dawson, Robert A.

Liquid purification or separation

Processes

Separating

210770, 210350, 210406, 210459, 210462, 21032175, 210232, 210486, 210224, B01D 2428

Patent

active

054416515

ABSTRACT:
A method and apparatus for processing sludge, which utilizes filter plates and flow regulating means to form condensed sludge of higher concentration, have been developed. The filter plates are disposed within a sludge tank and noncondensed sludge is added to the sludge tank to completely cover the filter plates. Filtrate is then removed from the sludge tank by the filtrate extraction means via the permeable walls of the filter plates. As the filtrate passes through the permeable walls a first condensed sludge forms on the filter plates. After first condensed sludge is formed on the filter plates, a flow regulating means is operated to form second condensed sludge, an even higher concentrations of condensed sludge.

REFERENCES:
patent: Re25467 (1963-10-01), Logan et al.
patent: 2779477 (1957-01-01), Swensen
patent: 4358381 (1982-11-01), Takeuchi et al.
patent: 5192456 (1993-03-01), Ishida et al.

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