Concentration dependence of the parameters used in the mathematical description of the process of water desalinization by reverse osmosis

The methods given in the literature for determining the characteristics of the semipermeable membranes used for separating solutions by reverse osmosis are considered. Experimental investigations of two MGA-100 membranes in aqueous solutions of sodium chloride have been performed in a circular cell with a rotating stirrer under conditions in which concentration polarization was reduced to a minimum by using a stirrer with elastic elements present in direct contact with the surface of the membrane.