| 水中腐殖酸对高级氧化联用技术去除内分泌干扰物（DMP）的影响 |
| 摘要点击 2093 全文点击 1488 |
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| 中文关键词 饮用水 邻苯二甲酸二甲酯 高级氧化 腐殖酸 内分泌干扰物 |
| 英文关键词 drinking water dimethyl Phthalate advanced oxidation process humic acids endocrine disruptors |
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| 中文摘要 |
| 使用腐殖酸模拟本底天然有机物进行试验，采用UV-H2O2、O3、UV-O3 3种高级氧化工艺，研究了水中腐殖酸对3种高级氧化联用技术去除饮用水中内分泌干扰物（DMP）的影响。研究表明：UV-H2O2联用工艺氧化DMP的过程符合伪一级反应动力学，水中腐殖酸的存在对UV-H2O2联用工艺氧化DMP的影响非常大，伪一级反应的速率常数与本底TOC值的关系式为K=0.1620[TOC]0-0.8171；同时水中腐殖酸对UV-O3联用工艺氧化DMP的效果影响比较大，而总体上腐殖酸对O3氧化DMP的去除影响不大。从效果分析知，在存在一定浓度腐殖酸本底条件下单独O3氧化和UV-O3联用工艺对DMP的氧化均以O3分子对DMP的氧化起主导作用，当腐殖酸浓度变小，UV-O3联用工艺体系中?OH自由基氧化DMP的重要性增大。水中腐殖酸对3种高级氧化工艺的影响程度顺序依次为：UV-H2O2＞UV-O3＞O3。 |
| 英文摘要 |
| Humic acids were used to simulate natural organic compounds in water for the investigation of DMP oxidation by three different AOPs (Advanced oxidation processes) of UV-H2O2, O3 and UV-O3. The results showed that pseudo-first-order reaction equation could describe the oxidation of DMP by UV-H2O2 perfectly, which was strongly affected Humic acids in water. The relationship between pseudo-first-order reaction rate and TOC value could be expressed as K=0.1620[TOC]0-0.8171. It was also found that humic acids in the water exhibited obvious influence on the oxidation of DMP by UV-O3. However, effect of humic acids on the oxidation of DMP by ozone was not obvious. It was also analyzed that oxidation of DMP was dominated by ozone oxidation both in ozonation process and UV-O3 process; the importance of ?OH in the oxidation of DMP was enhanced as the concentration of DMP decreased in UV-O3 process. The degree of impact form humic acids towards different AOPs could be ranked in a decreasing order as UV-H2O2, UV-O3, O3. |
