Removal of Electrolytes from Aqueous Solutions Using Activated Carbon Fiber Electrodes

Abstract

Removal of electrolytes from aqueous solutions (2.5X10-4 mol/l∼0.01 mol/l of Mg(NO3)2) was carried out by using an electric double layer capacitor with activated carbon fiber cloth (ACFC) polarizable electrodes. Without charging the capacitor, it was difficult to remove Mg(NO3)2 from the solutions. On the other hand, Mg(NO3)2 was effectively removed, especially in low concentrations of Mg(NO3)2, by charging the capacitor to 1.0 V.