Research Article
Open Access
Indirect Electrochemical oxidation process of synthetic toxic azo dyes with in situ electro –generated active chlorine for textile dyeing industry waste water treatment
V.Prathipa1*, A.Sahaya Raja2
1Department of chemistry, PSNA College Engineering and Technology, Dindigul, Tamilnadu, India
2PG& Research Department of Chemistry, G.T.N. Arts College, Dindigul, Tamilnadu, India
V.Prathipa et al /Int.J. TechnoChem Res. 2017,3(1),pp 199-206.
Abstract
he removal of reactive dyes from effluents by electro coagulation has become an attractive
method in recent years. This paper deals with the removal of the reactive textile dyesSamarone yellow,
Fast sulphon black F, Acid Orange from an aqueous medium by the electro coagulation method using
platinised titanium, mild steel, aluminium, Copper and stainless steel electrodes. The effects of
electrolyte concentration, initial pH, current density, electrode area, inter electrode distance, dye
concentration, and treatment time on the decolourization efficiency have been investigated. The optical
density of the dye solution was measured before and after electrolysis, and hence the decolourization
efficiency (DE) was calculated. UV spectroscopy has been used to investigate the nature of dye before
and after decolourization.
Keywords
Electrocoagulation, wastewater treatment, textile dyes, Samarone yellow, Fast sulphonblack F, Acid Orange, decolourisation efficiency
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