Organic fouling properties of anion-exchange membranes with various electrodialysis conditions

抄録

Organic fouling behavior of commercially available anion-exchange membranes (AEMs), AMX and ASM was examined by measuring the voltage drop between probe electrodes in an electrodialysis (ED) system consisting of AEM and NaCl solutions containing sodium dodecylbenzene-sulfonate (DBS) as an organic foulant. The slope of the time-voltage curves through AEMs increases with increasing DBS concentration. The slope of the two AEMs increases with increasing current density. ASM has a higher anti-organic fouling property than AMX at high DBS concentrations and/or high current densities because of its high water content.