Prediction of rejection coefficients in ultrafiltration

The rejection coefficient for the ultrafiltration of monodisperse solutes (polystyrene in cyclohexane at theta temperature) was calculated from average pore size and pore size distribution of mineral membranes, assuming a sieve mechanism for membrane crossflow and negligible adsorption. In the case...

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Bibliographic Details
Published in:Journal of membrane science 1989, Vol.43 (1), p.47-67
Main Authors: Poyen, S., Bariou, B., Mameri, N., Portier, M., Bergez, M.
Format: Article
Language:English
Subjects:
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Membranes
Porous materials
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Summary:The rejection coefficient for the ultrafiltration of monodisperse solutes (polystyrene in cyclohexane at theta temperature) was calculated from average pore size and pore size distribution of mineral membranes, assuming a sieve mechanism for membrane crossflow and negligible adsorption. In the case of high adsorption, conditions of saturation of the membrane were reached, and the average pore size was corrected by applying Poiseuilles's law to solvent flow. Experimental results agreed well with the rejection coefficients thus calculated.
ISSN:0376-7388
1873-3123
DOI:10.1016/S0376-7388(00)82353-4