Membrane transfer and selectivity
Membrane filtration (IO, NF, UF, MF) - Theoretical aspects: permeability and selectivity
Article REF: J2790 V3
Membrane transfer and selectivity
Membrane filtration (IO, NF, UF, MF) - Theoretical aspects: permeability and selectivity

Authors : Pierre AIMAR, Patrice BACCHIN, Alain maurel

Publication date: August 10, 2010, Review date: March 20, 2024 | Lire en français

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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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