UV-H_2O_2工艺对饮用水中DMP的去除效果和影响因素  

DEGRADATION OF DMP BY COMBINATION OF UV-H_2O_2 AND IMPACT FACTORS

作　　者：赵丹丹[1] 高乃云[1] 芮旻[1] 徐斌[1] 赵建夫[1] 乐林生 

机构地区：[1]同济大学污染控制与资源化研究国家重点实验室,上海200092 [2]上海市自来水市北有限公司,上海200086

出　　处：《环境化学》2006年第4期477-480,共4页Environmental Chemistry

基　　金：国家863高技术研究发展计划资助项目(2002AA601130);国家科技攻关计划重大项目资助(2003BA808A17)

摘　　要：采用UV-H2O2工艺对饮用水中内分泌干扰物邻苯二甲酸二甲酯(DMP)的去除进行研究,结果表明,单独的UV或H2O2都不能有效氧化去除DMP;而UV-H2O2联用工艺对饮用水中DMP具有很好的去除效果.在原水DMP浓度为5.1496×10-3mmol.l-1(1.0mg.l-1)左右,UV光强133.9μW.cm-2,H2O2投加量20mg.l-1和反应时间60m in条件下,DMP的去除率可达到97.8%.探讨了反应速率常数随影响因素变化的规律,其中H2O2浓度、pH值、DMP初始浓度和本底TOC值对该工艺去除DMP的影响较大.The removal performances of dimethyl phthalate （DMP）in drinking water using UV-H2 O2 combinated process was introduced in this paper. The results showed that, the DMP could not be effectively removed by UV radiation or HE O2 oxidation alone, while UV-H2O2 process could achieve quite good removal efficiency. As the initial concentration of DMP about 5. 1496 × 10^-3 mmol ·l^-1 （ 1. 0mg ·l^-1 ）, its removal efficiency reached 97.8% under the condition that the intensity of UV radiation, the dosage of H2O2, reaction time and pH value were 133.9μW· cm^-2, 20mg· l^-1,60 minutes, and 6. 83, respectively. The kinetic effects of the intensity of UV radiation, H2 O2 dosage, pH values, DMP initial concentration and TOC values on the conversion of DMP were examined respectively. Analysis of factors showed that H2O2 dosage, pH value, DMP initial concentration and TOC value have important effect on the adsorption of DMP.

关 键 词：饮用水 邻苯二甲酸二甲酯 UV辐照 高级氧化工艺. 

分 类 号：TU991.2[建筑科学—市政工程]