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| 1 | Research progress of disinfection and disinfection by-products in China显示文摘Disinfection is an indispensable water treatment process for killing harmful pathogens and protecting human health. However, the disinfection has caused significant public concern due to the formation of toxic disinfection by-products(DBPs). Lots of studies on disinfection and DBPs have been performed in the world since 1974. Although related studies in China started in1980 s, a great progress has been achieved during the last three decades. Therefore, this review summarized the main achievements on disinfection and DPBs studies in China, which included:(1) the occurrence of DBPs in water of China,(2) the identification and detection methods of DBPs,(3) the formation mechanisms of DBPs during disinfection process,(4) the toxicological effects and epidemiological surveys of DBPs,(5) the control and management countermeasures of DBPs in water disinfection, and(6) the challenges and chances of DBPs studies in future. It is expected that this review would provide useful information and reference for optimizing disinfection process, reducing DBPs formation and protecting human health. | Xuefeng Sun Miao Chen Dongbin Wei Yuguo Du | 2019 | Journal of Environmental Sciences2019，31，7： | 18 |
| 2 | 氯消毒中有机防晒剂BP9的去除转化与风险评价显示文摘对典型有机防晒剂二苯甲酮-9(BP9)在氯消毒过程中的氧化反应进行研究,考察BP9初始浓度、余氯初始浓度、溶液p H值和氨氮浓度对反应的影响,探究BP9氯氧化降解机理,评估其生态风险.结果表明,在BP9初始浓度5mg/L、余氯初始浓度5mg/L的条件下,90s内BP9去除率达到91.3%,符合准一级反应动力学.降解速率常数随着BP9初始浓度及氨氮浓度增加而减小,随余氯初始浓度增大而增大,中性条件下有利于BP9氯氧化反应.基于HPLC-MS/MS和GC-MS解析出7种中间产物,提出可能降解路径.发光细菌毒性分析和ECOSAR预测均表明,BP9氯氧化反应生成了比母物质毒性更高的中间产物,对饮用水水质安全造成潜在风险. | 李佳琦 杜尔登 樊鑫鑫 杨韵一 王利平 | 2018 | 中国环境科学2018，38，3： | 5 |
| 3 | The chlorination transformation characteristics of benzophenone-4 in the presence of iodide ions显示文摘Benzophenone-type UV filters are a group of compounds widely used to protect human skin from damage of UV irradiation. Benzophenone-4(BP-4) was targeted to explore its transformation behaviors during chlorination disinfection treatment in the presence of iodide ions. With the help of ultra performance liquid phase chromatograph and high-resolution quadrupole time-of-flight mass spectrometer, totally fifteen halogenated products were identified, and five out of them were iodinated products. The transformation mechanisms of BP-4 involved electrophilic substitution generating mono-or di-halogenated products,which would be oxidized into esters and further hydrolyzed into phenolic derivatives. The desulfonation and decarboxylation were observed in chlorination system either. Obeying the transformation pathways, five iodinated products formed. The p H conditions of chlorination system determined the reaction types of transformation and corresponding species of products. The more important was that, the acute toxicity had significant increase after chlorination treatment on BP-4, especially in the presence of iodide ions. When the chlorination treatment was performed on ambient water spiked with BP-4 and iodide ions,iodinated by-products could be detected. | Fan Yang Dongbin Wei Ming Xiao Xuefeng Sun Qiaorong Guo Yi Liu Yuguo Du | 2017 | Journal of Environmental Sciences2017，29，8： | 1 |
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