Abstract
Electrochemical method is employed to treat the effluent from the secondary wastewater treatment plant of a large dyeing and finishing mill. The overall effectiveness of electro-chemical method in elevating the quality of treated wastewater was found to be considerably enhanced with an addition of small amount of hydrogen peroxide (H2O2). Experimental runs were conducted to examine the effects of operating variables, particularly the amount of hydrogen peroxide and the electrochemical treatment time, on the process performances and to determine the optimum operating ranges of those variables. By incorporating ion exchange with the electrochemical method, the quality of wastewater after the combined treatment was observed to exceed the reuse standard for the textile industries and the treated wastewater can be considered for reuse.
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