Vibrationally-induced dynamic membrane filtration

Details Vibrationally-induced dynamic membrane filtration Vibrationally-induced dynamic membrane filtration

1997-08-27

1999-11-16

Kim, John

Liquid purification or separation

Processes

Separating

210388, B01D 2972, B01D 3520

Patent

active

059851600

ABSTRACT:
A filtration process and apparatus are provided wherein feed fluid to be filtered is introduced into a small gap between two rectangular plates. At least one of the plates supports a porous filtration membrane within the gap. During filtration, at least one of the plates is oscillated to effect a continuously changing gradient of gap width between opposing surfaces of the plate. A permeate is collected and a seal is provided to prevent admixture of the permeate with either feed fluid or retentate.

REFERENCES:
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patent: 3970564 (1976-07-01), Shamsutdinov et al.
patent: 4076623 (1978-02-01), Golston
patent: 4158629 (1979-06-01), Sawyer
patent: 4836922 (1989-06-01), Rishel et al.
patent: 4872988 (1989-10-01), Culkin
patent: 4886608 (1989-12-01), Cook
patent: 5468844 (1995-11-01), Smith

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