Article | REF: J2790 V2

Membrane filtration (RO, NF, UF, MFT) - Theoretical aspects: permeability and selectivity

Authors: Pierre AIMAR, Patrice BACCHIN, Alain maurel

Publication date: August 10, 2010

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3. Membrane transfer and selectivity

Membrane selectivity is induced by various types of mechanisms described in model form in paragraph 4 of [J 2 789] . The following paragraphs present the consequences of these phenomena on the selectivity of the various membrane operations from reverse osmosis to ultrafiltration, the influence of operating conditions on selectivity and discuss possible ways of improving selectivity.

3.1 Selectivity of reverse osmosis membranes

In reverse osmosis, a diffusional model...

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Membrane transfer and selectivity
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