Comparative degradation study of remazol black B dye using electro-coagulation and electro-Fenton process: Kinetics and cost analysis

Water pollution from textile industries is a great concern in developing countries. To address the textile wastewater treatment, this study investigated the removal of chemical oxygen demand (COD), color, dye, and turbidity from synthetic textile wastewater containing remazol black B (RBB) dye under electro-coagulation (EC) and electro-Fenton (EF) processes by using an electrochemical cell comprising two stainless steel electrodes. The impacts of the addition of Fe2+ concentration, H2O2 concentration and their dual effect on the process performances and operating costs of the processes were also assessed. Over 76 %, 94 %, 95 % and 95 % of COD, color, dye, and turbidity removals were observed, respectively, from the EF process after 50 min of treatment. The EC process was efficient…