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Iranian Journal of Chemistry and Chemical Engineering، جلد ۴۰، شماره ۳، صفحات ۸۰۴-۸۱۴
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عنوان انگلیسی Employing a New Catalytic Ozonation(O3/MnO2/CP) for Degradation of Nitro Toluene in Aqueous Environment Using Box-Behnken Experimental Design
چکیده انگلیسی مقاله In this work, the degradation of Nitro toluene (NT) which is one of the constituents of petrochemical wastewater was explored byMnO2/Clinoptilolite/O3 process. The Box-Behnken experimental design was used and the effect of some operating parameters such as concentration of pollutant, initial pH, and amount of MnO2/Cp was inspected. A radical mechanism with the formation of an anion radical (  before hydroxyl radical is proposed for describing the interaction between ozone and MnO2/Cp . The optimum conditions predicted by the model were as the following: [MnO2/Cp ] = 0.45 mg/L, pH at 8.5, ozonation time at 48 min and [NT] = 30 mg/L.In optimum condition, the removal of NT and Chemical Oxygen Demand (COD) was 99.8, and 74% respectively. The removal of NT in the ozone along with MnO2/CP was higher than the sum of the separate processes of single adsorption of catalyst (6%) at 0.6 mg/L and single ozonation(79%).
کلیدواژه‌های انگلیسی مقاله MnO2/CP nanocatalyst,Clinoptilolite Zeolite,Degradation,Nitro toluene (NT),catalytic ozonation,Petrochemical wastewater
نویسندگان مقاله Shabnam Pourfalatoon |
Department of Chemical Engineering, Arak Branch, Islamic Azad University, Arak, I.R. IRAN

Hossein Mazaheri |
Department of Chemical Engineering, Arak Branch, Islamic Azad University, Arak, I.R. IRAN

Ali Hassani Joshaghani |
Department of Chemical Engineering, Arak Branch, Islamic Azad University, Arak, I.R. IRAN

Aref Shokri |
Department of Chemistry, Payame Noor University (PNU), Tehran, I.R. IRAN

نشانی اینترنتی https://ijcce.ac.ir/article_38105_ff6597e8ea72d65c5b1c8ad72c7fd33e.pdf
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