Adaptive filter concentrate flow control system and method

Details Adaptive filter concentrate flow control system and method Adaptive filter concentrate flow control system and method

1988-12-22

1989-11-07

Spear, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210651, 210 90, B01C 1300

Patent

active

048790400

ABSTRACT:
An adaptive filter concentrate flow control system and method includes a filter system, a pumping system driving feed fluid, concentrate and filtrate flowing through the filter system and a flow control system controlling the pumping system to maintain optimum filtrate flow rates along a control curve in a transmembrane pressure--feed fluid rate--filtrate flow rate three dimensional space. Actual sensed operating point data is used to locate the control curve so as to assure an optimized filtrate flow rate at which reversible blocking of the membrane has begun to occur without irreversible plugging. The system is advantageously employed to control and maximize the flow of plasma in a plasmapheresis system.

REFERENCES:
patent: 4370983 (1983-02-01), Lichtenstein
patent: 4381999 (1983-05-01), Boucher et al.
patent: 4444596 (1984-04-01), Gortz et al.
patent: 4486303 (1984-12-01), Brous
patent: 4493693 (1985-01-01), Bilstad et al.
International Publication No. WO 85/02783, Jul. 4, 1985 for "Filtration Method and Apparatus" of Josif Shmidt, PCT/US84/02094.
Dorson, Jr., et al., Int. Pub. No, WO82/03567, published 10-28-82, 50 pages.

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