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Article – Journal of Advanced Electrochemistry

Journal of Advanced Electrochemistry, Volume 1,Issue 1,2015 Pages 13-15

Decolourization of Textile Dye (4-(2-Hydroxy-5-Methylphenylazo)Acetanilide) by Electrochemical Method
A. Sahaya Raja*, J. Sathiyabama, V. Prathipa

The removal of reactive dye from effluents by electrocoagulation has become an attractive method in recent years. This paper deals with the removal of the reactive textile dye 4-(2-hydroxy-5-methylphenylazo)acetanilide from an aqueous medium by the electrocoagulation method using platinised titanium, mild steel, aluminium, copper and stainless steel electrodes. The effects of electrolyte concentration, initial pH, current density, electrode area, interelectrode distance, dye concentration, and treatment time on the decolorization efficiency have been investigated. The optical density of the dye solution was measured before and after electrolysis, and hence the decolourisation efficiency (DE) was calculated. UV spectroscopy has been used to investigate the nature of dye before and after decolourisation. The decolourisation efficiency is in the decreasing order as platinised titanium > SS > Al > mild steel > Cu.

Keywords: Electrocoagulation; Wastewater Treatment; Textile Dye; 4-(2-Hydroxy-5-Methylphenylazo)Acetanilide;