Electrofilter using an improved electrode assembly

Details Electrofilter using an improved electrode assembly Electrofilter using an improved electrode assembly

1984-12-31

1986-02-11

Wyse, Thomas

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204186, 204299R, 204302, B01D 1302

Patent

active

045697396

ABSTRACT:
A system and method for dewatering or separating particles from a liquid or a colloidal suspension which comprises the use of an electrofilter with separated, submerged electrodes wherein the electrode used for collecting the solid particles comprises an assembly of an ion-selective membrane shell, coated with or having bonded on its interior, a conductive metal composite catalyst layer, and a conductive structural material core such as graphite within the shell. The electrode assembly does not require the use of an electrolytic solution within the shell, but may be operated with one. A direct current is applied to the electrofilter so that the particles in the suspension will migrate towards the electrode assembly and form a caked deposit or slurry layer on the outside of the membrane. In one embodiment, the electrode assembly can be removed from the electrofilter cell so that the dewatered or separated solids may be removed from the outside surfaces of the membrane.

REFERENCES:
patent: 3268441 (1966-08-01), Lindstrom
patent: 3664940 (1972-05-01), Greyson et al.
patent: 4013554 (1977-03-01), Reis et al.
patent: 4149957 (1979-04-01), Gibson et al.
patent: 4284492 (1981-08-01), Korn
patent: 4331525 (1982-05-01), Huba et al.

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