Publication: A response surface methodology for styrene degradation using fenton's/UV-fenton's oxidation
Issued Date
2013-03-25
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ISSN
09707077
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2-s2.0-84875184057
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Mahidol University
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SCOPUS
Bibliographic Citation
Asian Journal of Chemistry. Vol.25, No.3 (2013), 1737-1740
Suggested Citation
Nuttawan Yoswathana A response surface methodology for styrene degradation using fenton's/UV-fenton's oxidation. Asian Journal of Chemistry. Vol.25, No.3 (2013), 1737-1740. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/31548
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Title
A response surface methodology for styrene degradation using fenton's/UV-fenton's oxidation
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Abstract
Styrene is one of hazardous wastes sites that purposed on the EPA National Priorities List. Fenton's and UV-Fenton's oxidation for the styrene degradation were investigated by a response surface methodology using central composite Box-Behnken design as a tool for optimization in term of % COD removal. The technical scientific feasibility method was assessed by Fenton's oxidation found that the optimum molar ratio as [H2O2]:[FeSO4]: [styrene (C8H8)] was [20]:[1.81]:[1], the COD removal 92.67 % at 30 °C for reaction time 45 min and the reaction rate was zero order with kinetic rate constant of 0.018 mM/min. A response surface methodology was to applied to optimize the Fenton's oxidation conditions: the molar ratio of [H2O2]:[Fe2+]:[C8H8] was [22.73]:[1.81]:[1.06] at 30 °C, reaction time 42.12 min and the COD removal was 94.90%. In UV-Fenton's oxidation with UV 80 watt, the optimum molar ratio of [H2O2]:[Fe2+]:[C8H8] was [22.54]:[1.81]:[1.04] at 30 °C for reaction time 29.89 min and the COD removal was 95.03 %. Under these conditions, it was possible to obtain the maximum styrene degradation using optimization from response surface methodology of Fenton's/UV-Fenton's oxidation. Copyright © 2013 Asian Journal of Chemistry.