DEGRADATION AND REMOVAL OF PAPER MILL DYE BASIC ORANGE 2 BY ELECTROCHEMICAL TREATMENT METHOD

This study deals with the treatment of Paper Mill dye Basic Orange 2, by electrochemical degradation. The graphite carbon electrodes were used as anode and cathode. During electrochemical degradation, the chromoporic groups and aromatic rings were destroyed. The experimental results indicated that initial pH, current density and supporting electrolytes such as NaCl and Na₂SO₄ were played an important role in degradation of dye. The maximum colour removal efficiency of 85% and total organic compound (TOC) 93% could be achieved for dye, at pH 3, current density 340 A m^-2, NaCl 2.5 g L^-1. The results revealed the suitability of the present process for the effective degradation of dye effluents.