| The mechanism of Fe (Ⅲ)-catalyzed ozonation of phenol |
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| 作者姓名： | 竹湘锋 徐新华 |
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| 作者单位： | Department of Environmental Engineering，Zhejiang University，Hangzhou 310027，China，Department of Environmental Engineering，Zhejiang University，Hangzhou 310027，China |
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| 基金项目： | Project(No.[2003]-AM10:15)supportedbySino-FinnishScientificandTechnologicalCooperationProject |
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| 摘 要： | Fe (Ⅲ)-catalyzed ozonation yielded better degradation rate and extent of COD (Chemical Oxygen Demand) or oxalic acid as compared with oxidation by ozone alone. Two parameters with strong effects on the efficiency of ozonation are pH of the solution and the catalyst (Fe3 ) dosage. The existence of a critical pH value determining the catalysis of Fe (Ⅲ) in acid conditions was observed in phenol and oxalic acid systems. The best efficiency of catalysis was obtained at a moderate concentration of the catalyst. A reasonable mechanism of Fe (Ⅲ)-catalyzed ozonation of phenol was obtained based on the results and literature.
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| 关 键 词： | Catalytic ozonation Phenol Oxalic acid Fe (Ⅲ) Mechanism |
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