text: The cathode is the reducing electrode and generates OH ions which increases local pH conditions. An increase in pH can have the effect of promoting the desorption of pollutants into solution where they can migrate to the anode and undergo oxidation hence destruction. Studies on cathodic regeneration have shown regeneration efficiencies for adsorbed organic pollutants such as phenols of the order of 85% based on regeneration times of 4 hours with applied currents between 10-100 mA. However, due to mass transfer limitations between the cathode and anode, there is often residual pollutant left in the cathode unless large currents or long regeneration times are employed.