DEGRADATION OF ORGANIC POLLUTANTS BY INDIRECT ELECTROCHEMICAL OXIDATION PROCESS USING COMPOSITE ELECTRODE

The aim of this research work is to investigate the efficiency of electrochemical oxidation of industrial polluted water which contains Fast Blue B salt. A novel composite electrode was fabricated by pressing together Co3O4 and graphite and it was used as the cathode and a platinum foil as the anode. The experiments were carried out in a glass beaker containing 100 ml of dye solution. The colour removal process was studied at different conditions of pH, treatment time, electrolyte concentration, current density, potential difference between electrodes and initial dye concentration. During the electrolysis, the organic pollutants are oxidized to carbon dioxide and water. The removal of chemical oxygen demand (COD) and dye colour were 85% and 95% respectively. The results revealed the suitability of the present process for the effective degradation of dye effluents