Electrochemical Decolorization of Reactive Violet 5 Textile Dye using Pt/Ir Electrodes

Year 2016, Volume: 3 Issue: 3, 229 - 246, 08.01.2017

Bahadır K. Körbahti , Kezban Meltem Turan

https://doi.org/10.18596/jotcsa.28768

Cited By: 8

Abstract

Electrochemical decolorization of textile dyeing wastewater containing Reactive Violet 5 (RV5) were investigated at Pt/Ir electrodes in the presence of 75%NaCl+25%Na₂CO₃ (w/w) supporting electrolyte mixture in a batch electrochemical reactor. Experimental parameters were operated in the range of 300-1500 mg/L textile dye concentration, 4-20 g/L 75%NaCl+25%Na₂CO₃ electrolyte concentration, 5-15 mA/cm² current density, and 20-60°C reaction temperature in 15 min electrolysis time. Reactive Violet 5 decolorization increased with increasing current density and electrolyte concentration, and decreasing the textile dye concentration. Although a slight increase obtained in color removal efficiency, the temperature was not show much significant effect on decolorization. Depending on electrochemical reaction conditions, Reactive Violet 5 textile dye decolorization were obtained between 42.8-100%.

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