Abstract
Electrochemical oxidation for a textile dye wastewater collected from a textile processing industry was investigated in this study using Stainless Steel an anode. Number of batch experiments was run in a laboratory-scale. The results are reported in terms of percentage removal of Chemical Oxygen Demand (COD), Color and variations in BOD/COD ratio for different current densities of 12, 24 and 48 A/m 2 . For current densities 12, 24 and 48 A/m 2 , COD was reduced by 52%, 63% and 71% respectively; Color was reduced by 41%, 55%, 77% respectively. The biodegradability was improved because of the increase BOD/COD ratio from 0.1 to 0.58. It was observed that increasing the electrolysis time and increased current density bring down the concentration of pollutants. COD removal and energy consumption rates are discussed. Kinetics for COD removal is also discussed. It can be concluded from the results that SS as an anode found to be effective in treating this electrolyte and could be effectively used for pretreatment of textile dye wastewater.
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