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  • 伊学农,方佳男,高玉琼,高乃云.紫外线-氯联合高级氧化体系降解水中的萘普生[J].环境工程学报,2019,13(5):1030-1037.DOI:10.12030/j.cjee.201811102    [点击复制]
  • YI Xuenong,FANG Jianan,GAO Yuqiong,GAO Naiyun.Degradation of naproxen in water by UV/chlorine advanced oxidation process[J].,2019,13(5):1030-1037.DOI:10.12030/j.cjee.201811102   [点击复制]
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紫外线-氯联合高级氧化体系降解水中的萘普生
伊学农1,方佳男1,高玉琼1,高乃云2
0
(1.上海理工大学环境与建筑学院,上海 200082;2.同济大学环境与工程学院,上海 200082)
摘要:
采用高级氧化(advanced oxidation processes, AOPs)技术去除水体中的药物及个人护理品(PPCPs)污染物,选取PPCPs中的典型物质萘普生(NPX)为研究对象,探讨了其在UV/氯体系中的降解特性。结果表明:在UV/氯体系中,NPX的降解遵循拟一级动力学模型。氯剂量越高,溶液pH越低,越有利于NPX的降解;不同水基质种类对UV/氯工艺降解NPX的效果有不同影响,HCO3-和HA的存在抑制了NPX的降解,而Cl-的存在明显促进了NPX的降解。UV/氯工艺是一种行之有效的处理PPCPs的技术,但与直接氯氧化相比,UV/氯工艺会有生成更多消毒副产物的风险,需要在实际应用中加以注意。
关键词:  药品和个人护理品污染  高级氧化  消毒副产物
DOI:10.12030/j.cjee.201811102
投稿时间:2018-11-15
基金项目:国家自然科学基金青年科学基金资助项目51708348国家自然科学基金青年科学基金资助项目(51708348)
Degradation of naproxen in water by UV/chlorine advanced oxidation process
YI Xuenong1,FANG Jianan1,GAO Yuqiong1,GAO Naiyun2
(1.School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200082, China;2.College of Environmental Science and Engineering,Tongji University, Shanghai 200082, China)
Abstract:
Advanced oxidation processes (AOPs) were applied to remove pharmaceutical and personal care products(PPCPs) in water. In this study, naproxen (NPX), a typical PPCPs, was selected as the object contaminant, and its degradation characterization by UV/ chlorine was investigated. The results indicated that the degradation of NPX followed pseudo-first-order kinetics pattern in all cases, and the rate constants increased as the chlorine dose increased and the pH decreased. The effects of the water matrix on UV/chlorine process were species-dependent. Typically, the NPX degradation was inhibited in the presence of HCO3? and HA but obviously improved by the presence of Cl?. These results indicated that the UV/chlorine process is a promising technology for treating the PPCPs polluted water. However, UV/chlorine can notably enhance the formation of disinfection by-products compared to direct chlorination, which should be carefully considered when integrating such process into drinking water treatment schemes.
Key words:  pharmaceutical and personal care products (PPCPs)  advanced oxidation processes (AOPs)  disinfection byproducts