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Membrane fouling in the ultrafiltration of polyelectrolyte solutions: Polyacrylic acid and bovine serum albumin

Batch ultrafiltration was used to study the reduction in membrane permeability due to fouling by polyelectrolyte solutes. The flexibility of the polymer chain was found to be an important factor in determining the degree of fouling in the ultrafiltration of poly(acrylic acid) (PAA) solutions, as the...

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Bibliographic Details
Published in:Journal of membrane science 1986-02, Vol.26 (1), p.17-30
Main Authors: Choe, T.B., Masse, P., Verdier, A., Clifton, M.J.
Format: Article
Language:English
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Summary:Batch ultrafiltration was used to study the reduction in membrane permeability due to fouling by polyelectrolyte solutes. The flexibility of the polymer chain was found to be an important factor in determining the degree of fouling in the ultrafiltration of poly(acrylic acid) (PAA) solutions, as the effects observed were dependent on the pH and the cation concentration. These parameters were found to have a less pronounced effect in the ultrafiltration of bovine serum albumin (BSA) solutions. An observation of the effects of temperature and applied pressure led to the conclusion that membrane fouling by PAA was due to a pore-plugging effect while that caused by BSA was attributed to hydrophobic adsorption.
ISSN:0376-7388
1873-3123
DOI:10.1016/S0376-7388(00)80110-6