Critcal flux measurement for model colloids

摘要

The conventional operating membrane of a laboratory membranes filtration process is to apply controlled transmembrane pressure to the retentate side of the membrane, with the permeate side open ended. Often the minium transmembrane pressure available is sufficient to cause membrane fouling in a given system. A membrane rig has been built which monitors transmembrane pressure in increments of 0.001 bar and by pumping permeate at a specified rate controls the flux to be constant. The technique used allows sensitive detection of trace fouling.