Abstract
Permeability for inorganic phosphate and sodium ion using regenerated cellulose (RC) membrane and pol ymethyi methacryl ate (PMMA) membrane was studied by zeta potential measurement. Zeta potential was determined by the streaming potential method. A newly-improved method using radioisotope labeled disodium hydrogenphosphate has been employed to determined the solute permeability of RC membranes and PMMA membranes. Zeta potential of RC membrane is not contributed to over-all mass transfer coefficient and solute permeability for inorganic phosphate. That of PMMA membrane, however, affects these for it and over-all mass transfer coefficient for sodium ion.
