Model for colloidal fouling of membranes

摘要: A proposed theoretical model describes colloids deposition on a membrane surface accounting for interactions. mass transfer equation links the rate to hydrodynamic conditions (permeation and tangential flow boundary layer thickness) physicochemical properties of suspension (diffusion potential barrier between particles, VB). This predicts existence critical flux, Jcrit ultrafiltration, reverse osmosis or microfiltration large size as : Jcrit=D/d(ln(VB/d) Some trends observed when processing protein solutions are explained by this model. Previous experimental data various our with clay in presence electrolytes also compared predictions It explains flux anamaly particles ten nanometers one micrometer