Flux dependent oil permeation in the ultrafiltration of highly concentrated and unstable oil-in-water emulsions

► Ultrafiltration of highly concentrated and unstable oil in water emulsions. ► Filter cake has a definite yield stress and behaves as a Bingham fluid. ► Determination of critical flux as a function of oil concentration in the feed. ► Determination of cake compressibility factor for the oily cake. ► The oily cake was found to be compressible.