Electrochemical Degradation of Rhodamine B Dye

Abstract

The demand of water doubles globally due to rapid increase in population and industrial activities. With the development of dye industries, the dye waste water has become one of the important environmental problem. In order to evaluate the feasibility of removal of basic dye Rhodamine B from aqueous solution, the electrolysis of aqueous solution of dye has been carried out at graphite electrodes. The various parameters, which influence the extent of removal of dye such as, initial dye concentration, amount of supporting electrolyte, current density, electrolysis time, pH and electrode material have been determined. It is concluded that the electrochemical degradation can be used effectively as a pre-treatment alternative for dye removal and COD reduction in aqueous solution before conventional treatment.