Abstract
In this study, the application of bipolar electro coagulation (EC) using iron electrode has been assessed for the removal of Remazol Black B in the simulated dye wastewater. The influence of different parameters involving pH, initial dye concentration, sodium sulfate concentration, electrolysis time, and electric current was investigated. According to the results, the anode dissolution rate can be significantly affected by the electric current and it can be found that at high sulfate concentration, the decolorization process cannot be improved. The best color removal efficiency was obtained was 98.8 ± 0.9% at pH of 10, dye concentration of 30 mg/L, and electrical current of 6 A during electrolysis time of 8 minutes. This result indicates that EC can be used as an efficient and “green” method for color removal from reactive dye solution.
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