Study on Concentration Polarization Phenomena in Ultrafiltration Process——Affects of Concentration Polarization Boundary Layer and Membrane Resistances on Flux

Photo-electric method was used for direct measurement of concentratiom profile in boundary layer during ultrafiltration, On the basis of the measurement, concentration polarization boundary layer and membrane resistances in unstirred and stirred ultrafiltration were computed, and some affect factors on flux were discussed. It has been found that the boundary layer resistance is related with not only its thickness but also its formation process.