Abstract

Experiments with protein solutions and blood are reported which illustrate the fouling of membranes by protein adsorption. The effect of the adsorbed layer on membrane filtration properties is examined; this effect can be minimized by applying an appropriate surface coating to the membrane. Reduction of the adsorbed gel layer by pulsing the feed solution flow, and depletion of membrane/blood interfacial particle concentration by the tubular pinch effect are discussed.

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