Membrane charge

The “adsorption Á amphoteric” model is used to investigate the role of the main phenomena determining the mechanism of the membrane charge formation in nanofiltration membranes. The prevailing mechanisms considered are: acid/base dissociation of the hydrophilic groups of the membrane, counter-ion si

An equation of rejection curve was derived for a membrane system where the membrane charge strongly affected the partition of ions into the membrane surface. The equation predicted that the rejection varied linearly with the inverse of the volume flow. The equation was applied to the experimental da

It has been reported that the membrane charge of amphoteric membranes such as inorganic membranes depends on the pH and the electrolyte in the bulk solution. To explain these phenomena, we have proposed the advanced amphoteric membrane (AAM) model where the effective membrane charge is determined by