抄録
Electrodialysis (ED) utilizes ion-exchange membranes (IEMs) for ion separation and salt concentration. To enhance the efficiency of ion separation and salt concentration in ED, analyzing the permeability of ions through the membranes is essential. In this study, the ion concentration and ion mobility of halide ions in IEMs were calculated using monovalent selective anion-exchange membranes with two base materials to analyze the ion transport mechanism. Results showed that the mobility of the iodide ions in the membranes was the lowest among all the halide ions. By contrast, the iodide ion concentration in each membrane was higher than that of the chloride ions in the mixed KCl and KI solutions, proving that iodide ions have a considerably higher affinity than chloride ions.
