استفاده از فرایند H2O2/TiO2 در تجزیه کاتکول: سینتیک، هم افزایی و بهینه سازی از طریق روش سطح پاسخ

عنوان انگليسی

Ultrasonic-assisted H2O2/TiO2 process in catechol degradation: kinetic, synergistic and optimisation via response surface methodology

خلاصه انگلیسی

This experimental study investigated the performance of Catechol degradation by US/TiO2/H2O2 process as an integrated advance oxidation process. In this experimental study, initial pH, dose of TiO2, initial concentration of Catechol, H2O2 concentration and reaction time parameters optimised BBD. The results suggest that US/TiO2/H2O2 process has a high efficiency in Catechol degradation. Optimum condition of US/TiO2/H2O2 process is pH = 3.43, H2 O2 concentration = 130 mg/l, TiO2 dose = 0.34 g/l, Catechol concentration = 12.52 mg/l and reaction time = 70.64 min. According to predicate point, the percentage of Catechol removal in this condition was 96.2 and 92.34 as a predicated and experimentalpercentageofCatecholremovalbythisprocess.Thekinetics ofreactionfollowspseudo-first-orderkinetic.Thesynergisteffectof sonolysis, TiO2 and H2O2 is 2.09 fold. 70 and 63% of initial COD and TOC were removed. Presence of radical scavenger has an adverse impact on the performance of US/TiO2/H2O2 process.

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