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    標題: Effect of hydrogen peroxide on aniline oxidation by electro-Fenton and fluidized-bed Fenton processes
    作者: Jin Anotaia
    Chia-Chi Su
    Yi-Chun Tsai
    Ming-Chun Lu
    貢獻者: 環境資源管理系
    關鍵字: Electro-Fentonprocess
    Fluidized-bedFentonprocess
    Aniline
    Hydrogenperoxide
    日期: 2010-11
    上傳時間: 2012-05-31 14:49:35 (UTC+8)
    摘要: In this study, the electro-Fenton and fluidized-bedFentonprocesses under the given conditions were used to oxidize aniline. Factors such as feeding mode and concentration of the hydrogenperoxide were explored.

    Results showed that the feeding mode of H2O2 did not significantly affect the anilineoxidation in the electro-Fentonprocess. However, the anilineoxidation slightly decreased with the two-step addition of H2O2 in the fluidized-bedFentonprocess. Presumably the decline of remaining Fe2+ led to destitute hydrogen radicals from the Fe2+-catalyzed H2O2. In addition, the removal efficiency of aniline was maintained at a maximum as H2O2 concentration was higher than 0.04 M in the electro-Fentonprocess. Meanwhile, the almost exhausted H2O2 would increase the amount of Fe2+ in the solution for the electro-Fentonprocess. This is because the Fe2+ is regenerated through the reduction of Fe3+ on the cathode. The electro-Fentonprocess has a stronger oxidative ability with regard to the production of the oxalic acid than fluidized-bedFentonprocess which was attributed to a higher consumption of H2O2. Therefore, in the aspect of H2O2 depletion, the mineralization efficiency of the fluidized-bedFentonprocess was higher than that of the electro-Fentonprocess.
    關聯: Journal of Hazardous Materials 183(1-3):p.888-893
    Appears in Collections:[環境資源管理系(所)] 期刊論文

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