| 乳化液废水均相催化湿式氧化动力学 |
| 摘要点击 1189 全文点击 850 投稿时间：2005-09-01 修订日期：2005-10-19 |
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| 中文关键词 均相催化湿式氧化 乳化废水 动力学特征 COD去除率 活性 预测 |
| 英文关键词 homogenous catalytic wet air oxidation emulsification wastewater dynamics characteristic COD removal activeness forecast |
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| 中文摘要 |
| 在2L高压间歇反应釜中,以高浓度难降解乳化废水为处理对象,研究了温度对铜盐均相湿式氧化的影响和动力学特征.结果表明:升高温度对加快后期反应速度更为有利,催化剂有利于中间产物氧化,在200℃催化活性最高,在进水COD48 400mg/L,反应2h去除率为86.6%;催化剂在不同温度作用下机制有所差别:200℃时3个途径反应速度均加快,中间产物加速氧化更明显;220～240℃时反应向生成中间产物方向偏移,活性降低;通用模型能较好地预测均相催化过程. |
| 英文摘要 |
| Catalytic wet air oxidation of high-strength refractory emulsification wastewater was performed in a 2L high-pressure batch autoclave,with emphasis on influence and dynamics characteristic of temperature to homogenous catalytic wet air oxidation of Cu salts.The experimental results indicate that rising temperature speeds up the later period reaction rate advantageously,the catalyst is advantageous to the intermediary product's oxidation,the Cu salts exhibit the most effective reactivity at 200℃,86.6% COD removal(initial COD:(48?400)mg/L) is obtained after two hours oxidation;The catalyst has a different function mechanism in the different temperature: at 200℃,reaction rate of three ways speed up,the intermediary product is accelerated to oxidating more obviously;at 220～240℃,it impels the reaction leaning to oxidizing into the intermediary product and the activeness is reduced;The general model can forecast the process of homogenous catalytic wet air oxidation well. |
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