Micro/ultra filtration system

Details Micro/ultra filtration system Micro/ultra filtration system

1989-09-05

1990-11-27

Sever, Frank

Liquid purification or separation

With precoat adding or applying means

210393, 210411, 210425, 210427, 210437, 210446, 210455, 210457, B01D 3702

Patent

active

049734040

ABSTRACT:
A filtration apparatus characterized by efficiency of the precoating step and maintenance of filtration performance over a long period of time after precoating has been completed. The filter promotes parallel flow of porous precoat material along a porous septum, thereby achieving efficient stacking of this material against the septum. A dual-speed pumping system transmits the precoat material to the septum at high velocity, thereby further encouraging efficient stacking, but pumps the fluid to be filtered at a lower velocity to minimize energy consumption.

REFERENCES:
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patent: 3488768 (1970-01-01), Rigopulos
patent: 3501060 (1970-03-01), Pfeuffer
patent: 3680699 (1972-08-01), MacPherson
patent: 3974068 (1976-08-01), Ebner et al.
patent: 4028232 (1977-06-01), Wallis
patent: 4187174 (1980-02-01), Nielsen et al.
patent: 4346011 (1982-08-01), Brownstein
patent: 4407720 (1983-10-01), Bratten
patent: 4427554 (1984-01-01), Busse et al.
patent: 4526688 (1985-07-01), Schmidt, Jr. et al.
patent: 4560483 (1985-12-01), Warning et al.

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