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Cross-Flow Microfiltration of Ginkgo Hydrolysates with Ceramic Membrane

Cross flow microfiltration of Ginkgo (Ginkgo biloba L) hydrolysates was studied using ceramic membrane. The effects of membrane pore size and operation conditions on permeation flux were investigated and the appropriate operating conditions for the process obtained were 0.2 μm,0.05 MPa,2.4 cm/s,60 ℃ for membrane pore size, transmembrane press, cross flow velocity and temperature, respectively. Fouling mechanism of ceramic microfiltration membrane was also analysed with hydraulic resistance model, the results showed the proportion of the intrinsic resistance of the membrane (R m) in the total resistance was less than that of the resistance due to concentration polarization (R p).