Inhibitory effect of inorganic ions on nitrobenzene oxidation by fluidized-bed Fenton process

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• 作者：Chavalit Ratanatamskul ; Somboon Chintitanun ; Nalinrut Masomboon ; Ming-Chun Lu
• 关键词：Nitrobenzene ; Inorganic ions ; Fluidized-bed Fenton process
• 刊名：Journal of Molecular Catalysis A: Chemical
• 出版年：2010
• 出版时间：1 October 2010
• 年：2010
• 卷：331
• 期：1-2
• 页码：101-105
• 全文大小：416 K

文摘

This study investigated the effects of inorganic ions including chloride ions, dihydrogen phosphate ions and nitrate ions on the oxidation of nitrobenzene by the fluidized-bed Fenton process. The nitrobenzene degradation decreased with increasing chloride, dihydrogen phosphate and nitrate concentrations. Dihydrogen phosphate and chloride ions significantly inhibited nitrobenzene degradation. However, the inhibition caused by chloride ions could be overcome by extending the reaction time if the concentration of chloride ions was low. Nitrate did not have significant effect on nitrobenzene removal. The inhibition effect of each inorganic ion on the nitrobenzene degradation was in the order: H₂PO₄⁻  Cl⁻ > NO₃⁻. In addition, the results also show that the removal efficiency of nitrobenzene by fluidized-bed Fenton process was higher than traditional Fenton process.