Reaction patterns of NDMA precursors during the sequential chlorination process of short-term free chlorination and monochloramination
Reaction patterns of NDMA precursors during the sequential chlorination process of short-term free chlorination and monochloramination
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短期自由氯化和一氯胺连续氯化过程中NDMA前体的反应模式
DOI：
10.1016/j.seppur.2018.04.055
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发表时间：
2018-10
影响因子：
8.6
通讯作者：
Chen Chao
中科院分区：
文献类型：
--
作者：
Li Shixiang;Shu Yuanyuan;Tang Xin;Lin Pengfei;Wang Jun;Zhang Xiaojian;Chen Chao
设计了短期自由氯化和一氯胺化的顺序氯化工艺，实现了对病原菌、三卤甲烷和卤乙酸的同时控制。用二甲胺、杀虫脒、绿麦隆和抗蚜威4种模拟NDMA前体物和真实的水样测试了其对NDMA的防效。结果表明，DMA或杀虫脒在顺序氯化过程中形成的NDMA比在一氯胺化过程中少得多。然而，绿麦隆或抗蚜威形成更多的NDMA在顺序氯化过程中比在一氯胺化。NDMA前体物在顺序氯化过程中的反应可归纳为7种亚模式，其中一些亚模式会导致NDMA的减少。在顺序氯化过程中NDMA的控制机制归因于NDMA前体被游离氯快速氧化，其产物在随后的一氯胺化过程中很少或没有NDMA的产率。
The sequential chlorination process of short-term free chlorination and monochloramination was designed to achieve the simultaneously control of pathogen, trihalomethanes and haloacetic acids. Its efficiency forN-nitrosodimethylamine (NDMA) control was tested with four model NDMA precursors, i.e. dimethylamine (DMA), chlordimeform, chlortoluron and pirimicarb as well as real water sample. The results showed that DMA or chlordimeform formed much less NDMA during the sequential chlorination process than during monochloramination. However, chlortoluron or pirimicarb formed more NDMA during the sequential chlorination process than during monochloramination. Seven sub-patterns were concluded for the reactions of NDMA precursors during the sequential chlorination process and some of them would lead to the decrease of NDMA. The mechanism of NDMA control during the sequential chlorination process was attributed to the quick oxidation of NDMA precursors by free chlorine, which products presented less or no yield of NDMA during the following monochloramination.
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影响因子：
8.8
作者：
M. Sgroi;P. Roccaro;G. Oelker;S. Snyder
通讯作者：
M. Sgroi;P. Roccaro;G. Oelker;S. Snyder
DOI：
10.1002/j.1551-8833.2000.tb08961.x
发表时间：
2000-06
期刊：
Journal ‐ American Water Works Association
影响因子：
--
作者：
Alicia C. Diehl;G. E. Speitel;J. M. Symons;S. Krasner;Cordelia J. Hwang;Sylvia E. Barrett
通讯作者：
Alicia C. Diehl;G. E. Speitel;J. M. Symons;S. Krasner;Cordelia J. Hwang;Sylvia E. Barrett
影响因子：
11.4
作者：
Lee, Changha;Schmidt, Carsten;von Gunten, Urs
通讯作者：
von Gunten, Urs
影响因子：
6.9
作者：
S. Krasner;P. Westerhoff;W. Mitch;J. Skadsen;U. Gunten
通讯作者：
S. Krasner;P. Westerhoff;W. Mitch;J. Skadsen;U. Gunten
DOI：
10.1016/j.scitotenv.2007.04.012
发表时间：
2007-08
期刊：
The Science of the total environment
影响因子：
--
作者：
Chao Chen;Xiao-jian Zhang;Wen-jie He;Wei Lu;Hong-da Han
通讯作者：
Chao Chen;Xiao-jian Zhang;Wen-jie He;Wei Lu;Hong-da Han