Guclu, DunyaminSahinkaya, SerkanSirin, Nazan2020-03-262020-03-2620131061-43031554-7531https://dx.doi.org/10.2175/106143013X13596524516662https://hdl.handle.net/20.500.12395/29741Effluents of the coking industry cannot be effectively treated in biological treatment units because of non-biodegradable organic matters and phenolic compounds present in the wastewater. In this study, post-treatment of biologically treated coking wastewater via the electro-Fenton process was investigated to minimize the effects of discharge of this kind of wastewater on the environment. The electro-Fenton experiments were performed using cast iron electrodes. Chemical oxygen demand (COD) and phenol were selected as the target parameters. The optimum operating conditions were as follows: reaction time = 10 minutes, pH = 3.0, electrical current = 1.0 A, and [H2O2] = 2000 mg/L. Under these conditions, COD and phenol removal efficiencies were 67.8% and 98.0%, respectively. In addition, it was determined that COD removal followed first-order reaction kinetics. Consequently, the electro-Fenton process was determined as an effective alternative post-treatment method for coking industry effluents.en10.2175/106143013X13596524516662info:eu-repo/semantics/closedAccesschemical oxygen demandcoking wastewaterelectro-FentonoxidationphenolArticle85539139623789568Q2WOS:000320171300002Q3