Method for continuous disintegration of activated sludge

Details Method for continuous disintegration of activated sludge Method for continuous disintegration of activated sludge

1997-05-21

1999-04-20

Hruskoci, Peter A.

Liquid purification or separation

Processes

Treatment by living organism

210609, 210626, 210748, C02F 136

Patent

active

058955771

ABSTRACT:
A method is described for the continuous disintegration of microbial sludge in a sewage clarification or sewage treatment plant wherein the microbial sludge is decomposed biologically by bacteria and the resultant sludge (5) is exposed to sonic radiation in a treatment vessel (1) in order to split the cell walls of the microorganisms. With that, the sonic radiation shall be generated asymmetrically in the treatment vessel (1). The intensity of the sonic exposure lies-in an area of 500 to 1500 W/m2 and the sludge (5) is fed with a mean dwell-time of 2 to 4 minutes in counter-flow through the treatment vessel (1). The device for carrying out the method possesses a treatment vessel (1) with an eccentrically arranged sonic resonator arranged within (7).

REFERENCES:
patent: 3264213 (1966-08-01), Pav et al.
patent: 4340488 (1982-07-01), Toth et al.
patent: 4370235 (1983-01-01), Suzuki et al.
patent: 4961860 (1990-10-01), Masri
patent: 5068036 (1991-11-01), Li et al.
patent: 5380445 (1995-01-01), Rivard et al.

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