In all electrochemical processes, Voltage is the most important parameter for controlling the reaction rate within the reactor [21]. It is clear that, the rate of dye removal increases with increasing voltages from 10 to 40 Vol at the initial concentration of dye 100 mgL-1. The color removal efficiency increased to 98.16% from 97.51% at 40v and for voltage 20v from 97.27% to 97.94%. When voltage increases, the amount of ion produced on the electrodes increases. Therefore, there is an increase in floc production and hence an improvement in the color removal efficiency