ELECTROCHEMICAL ADVANCED OXIDATION PROCESS FOR SYNTHETIC DYE WASTEWATER TREATMENTMANISHA S. KOTHARI AND KOSHA A. SHAHAbstract The aim of this study is to employ mixed metal oxide plate as anode and stainless steel as cathode for decolorization of aqueous solution containing 100 mg/L of Rhodamine-B dye. This study deals with analysis of the effects of different operation parameters like initial pH, current density and different electrolytes on electro oxidation process. Results show the effective use of MMO plate as anode. Better color removal efficiency obtained at acidic and neutral pH range. Chloride ion concentration highly affects reaction rate of decolourization. Almost complete color removal can be obtained at all the employed current densities. An optimum efficiency was obtained at pH 3 and 5, at temperature of 30 °C. Also, at the current density of 15 mA /cm2 in electrolyte concentration (NaCl) of 0.03 M, almost complete color removal was achieved after 10 min of electrolysis. |