Unbalance of fluxes of salt ions and ions products of water dissociation through ion-exchange membranes during electrodialysis

Transport of salt ions and water dissociation products through ion-exchange membranes is studied during electrodialysis of a 0.002 M NaCl solution. Ch annels with a separator; channels with a filler, prepared from a monolayer of ionites; and channels without a filler are studied while maintaining a c onstant concentration and pH value of solution at the point of entry into t he desalination channel under study. It is found that effective transferenc e numbers for the H+ and OH- ions, respectively, through the cation-exchang e and anion-exchange membranes tend to level and grow with the increasing l ength of the desalination channel and with the decreasing average linear ve locity of the solution flow. The reasons for this phenomenon are considered .