Abstract
The Fered-Fenton process is one of the proposed options across the set of electrochemical oxidation processes. The primacy of this process is in-situ production of oxidation factors such as the hydroxyl radical (OH•). In this study, the Fered-Fenton process was adopted for the degradation of Direct Blue 15 (DB15) in wastewater by variating operational factors such as initial pH, applied current, and H2O2 and Fe2+ concentrations. The efficiency of color removal, chemical oxygen demand (COD) removal, functional group removal, and energy consumption of the Fered-Fenton process was evaluated. According to the results of this research, color and COD was degraded up to 90% and 86%, respectively, using graphite and Ti/Pt as electrodes. The presence of C-O absorption at wave number 1129.17 cm-1 also strengthens the presence of OH groups attached to the carbon chain. The energy consumption of this treatment was 20.4 kWh/L after 120 min. Therefore, the Fered-Fenton method is environmentally friendly for dye wastewater treatment.
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