Modelling of microfiltration on the track membranes in dynamic filters

A proposed separation mechanism of the PTM membranes includes filtrate perm eation through the residual cake covering a part of the membrane and filtra te permeation through the membrane free of the residual cake, resulting fro m the self-cleaning action, with partially blockage of pores effect [2, 3]. The inspection of the photographs of the membrane surface allowed to corre late the fraction of membrane free of residual cake with the shear rate on the separation surface. Hence, an idea of the of the parallel microfiltrati on resistances seems to be applicable.