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2. Permeability: concentration polarization and clogging
2.1 Concentration polarization and clogging
During operation, membrane filtration processes experience a drop in productivity: permeation flux decreases at constant applied pressure, or pressure increases at constant permeation flux. This drop in permeability is due to the accumulation of material on (or in) the membrane surface. Two phenomena can be distinguished:
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Permeability: concentration polarization and clogging
Membrane transfer and selectivity
Bibliography
Standards
- Filtration des liquides. Membranes poreuses. Taux de rétention des membranes d'ultrafiltration et de nanofiltration - NF X 45-103 - 12-97
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