Anti-fouling semi-permeable membrane system

Details Anti-fouling semi-permeable membrane system Anti-fouling semi-permeable membrane system

1991-06-21

1992-04-07

Sever, Frank

Liquid purification or separation

Filter

Material

264 451, F01D 6502

Patent

active

051025477

ABSTRACT:
Semi-permeable membrane and membrane/support assemblies and systems for microfiltration, ultrafiltration, nanofiltration, reverse osmosis, electrodialysis, electrodeionization and piezodialysis filter systems are formed of polymer membranes (14), including fine particle moieties (24) or threads (16) of substantially water insoluble, oligodynamic bioactive (biostatic and/or biocidal) dispersed material. When these membranes systems are used in aqueous liquids the dispersed material dissolves slowly and provides a continuous biostatic and/or biocidal action over a long duration to counteract membrane fouling propensities of the system environment.

REFERENCES:
patent: 4964998 (1990-10-01), Cadotte et al.

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