Mass transfer in corrugated-plate membrane modules. II. Ultrafiltration experiments

The application of corrugations as turbulence promoters in membrane filtration was studied. This study showed that it is possible to deform an originally flat membrane to a corrugated shape without damaging it. In hyperfiltration experiments using corrugated cellulose acetate membranes it was found that the corrugations improve mass transfer, provided they are not too close together. At a given value of the mass-transfer coefficient, the presence of corrugations can lead to lower energy consumption in hyperfiltration than possible with flat membranes.

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