Cross-flow filtration system and method for filtering a solvent-

Details Cross-flow filtration system and method for filtering a solvent- Cross-flow filtration system and method for filtering a solvent-

1991-08-23

1993-02-02

Dawson, Robert A.

Liquid purification or separation

Processes

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

210651, 210652, 210790, 210800, 210805, B01D 6100

Patent

active

051835720

ABSTRACT:
A system and method for the filtration of a solvent-particulate waste stream, such as a water solvent-particulate waste stream derived from the washing of a printing press blanket. The system and method include pumping and circulating under pressure the waste stream from a processing container through a filter to provide for a clarified solvent stream for reuse and a concentrated waste stream which is recycled back to the processing container. The system and method also include maintaining the recirculation flow rate at least than about 0.05 gallons per minute per square foot of filter surface (GFD) and removing a clarified solvent stream at a rate of less than about 2-3 gallons of flux per square foot of filter surface per day, while maintaining the pressure in the filter at a pressure of greater than about 25 psi and recycling the clarified solvent stream back for reuse in the system.

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patent: 5096591 (1992-03-01), Benn
Schweitzer, P. A., Handbook of Separation Techniques for Chemical Engineers, pp. 2-3 to 2-5, Section 2.1.

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