Method for removing solids from aqueous wash solutions

Details Method for removing solids from aqueous wash solutions Method for removing solids from aqueous wash solutions

1994-06-20

1995-03-07

Dawson, Robert A.

Liquid purification or separation

Processes

Separating

210805, 210806, 210295, 210167, B01D 2126, B01D 3600

Patent

active

053955374

ABSTRACT:
A method and apparatus for removal of solids from aqueous wash solutions such as, but not limited to, solutions used in hot jet-spray parts washers. Coarse solids are removed by a vortex separator during all operations. Solids accumulated in the parts washer storage tank are intermittently removed and fine solids are removed by intermittent depth filtration. In one embodiment of the invention, the method includes the purging of the vortex separator to the primary stage of depth filtration.

REFERENCES:
patent: 3923658 (1975-12-01), Lancaster
patent: 4399041 (1983-08-01), Rappe
patent: 4425228 (1984-01-01), Lynn et al.
patent: 4636317 (1987-01-01), Lewis
patent: 4954222 (1990-10-01), Durr et al.
patent: 5047157 (1991-09-01), Hoffman et al.
patent: 5062963 (1991-11-01), Marcinkowski et al.
patent: 5230793 (1993-07-01), Lenhart et al.
patent: 5249511 (1993-10-01), Schumate et al.

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