Use of chitosan to improve membrane filter performance

Details Use of chitosan to improve membrane filter performance Use of chitosan to improve membrane filter performance

1989-05-05

1990-11-13

Spear, Frank

Liquid purification or separation

Processes

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

210639, 210651, 21050023, 21050027, B01D 6302

Patent

active

049700014

ABSTRACT:
Improvement in cross-flow membrane filtration. Chitosan is admixed with an aqueous dispersion of colloids or finely divided solids to flocculate the solids. The chitosan-flocculated liquid is then filtered on a membrane by cross-flow under pressure. A layer of chitosan-containing flocculant material deposits on the membrane and provides superior flux performance as compared to certain commerical flocculants.

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