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Article | REF: F3250 V1

Membrane separations in the food industry

Authors: Pierre AIMAR, Georges DAUFIN

Publication date: December 10, 2004

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5. How it works

Membrane separation processes can be operated in batch or continuous mode. In the latter case, operation may have to be interrupted as a result of membrane clogging which, by reducing flow or altering selectivity, takes the plant away from its operating point. The membranes are then cleaned using chemical or mechanical procedures to restore their characteristics.

5.1 Membrane cleaning

Membrane cleaning is an essential operation for restoring proper operating conditions in line with specifications. It should be noted that, in general, cleaning does not restore the initial characteristics of the new membrane. On the other hand, when a cleaning procedure has been developed and is used regularly, the properties of the membrane are more or less always the same after...

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