Optimization the Effects of Physicochemical Parameters on the Degradation of Cephalexin in Sono-Fenton Reactor by Using Box-Behnken Response Surface Methodology

摘要: This work aims to study the degradation process using Sono-Fenton reactor for treating of pharmaceutical wastewater loaded with cephalexin. The was tested as a function pH (3–11), concentration agent H2O2 (40–80 mg/L), metal catalyst Fe2+ (4–12 mg/L), reaction time (up 100 min), and initial cephalexin (50–100 mg/L). effects these parameters were optimized by Box-Behnken response surface methodology (RSM). All experiments performed exposure ultrasonic irradiation frequency 130 kHz. According ANOVA results confidence level 95%, high regression fitting values obtained between experimental data RSM predicted model. finding suggests that is an extremely significant accurate model reactor. Accordingly, optimum efficiency 90% at conditions 3, concentration = 60 mg/L, concentration = 8 mg/L, concentration = 50 mg/L, time = 60 min. Thus, current demonstrated can be used effectively advanced oxidation treatment unit under environmental conditions.