1,4-dioxane degradation using a pulsed switching peroxi-coagulation process

Abstract Widely used in chemical product manufacture, 1,4-dioxane is one of the emerging contaminants, and it poses great risk to human health ecosystem. The aim this study was degrade 1,4-dioxiane using a pulsed switching peroxi-coagulation (PSPC) process. electrosynthesis H2O2 on cathode Fe2+ production iron sacrifice anode were optimized enhance degradation. Under current densities 5 mA/cm2 (H2O2) 1 (Fe2+), 95.3 ± 2.2% 200 mg/L removed at end 120 min operation with optimal frequency 1.43 Hz pH 5.0. low residual concentrations attributed high PSPC process, resulting effectively inhibiting side reaction during ·OH improving removal energy consumption. At min, minimum consumption process less than 20% that conventional electro-Fenton (7.8 0.1 vs. 47.0 0.6 kWh/kg). should be promising alternative for enhancing real wastewater treatment.