| Influencing factors of disinfection byproducts formation during chloramination of Cyclops metabolite solutions |
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| 作者姓名： | Xingbin Sun Lei Sun Ying Lu Jing Zhang Kejing Wang |
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| 作者单位： | Department of Environmental Science, Northeast Forestry University, Harbin 150040, China;Department of Environmental Science, Northeast Forestry University, Harbin 150040, China;Department of Environmental Science, Northeast Forestry University, Harbin 150040, China;Department of Environmental Science, Northeast Forestry University, Harbin 150040, China;Department of Environmental Science, Northeast Forestry University, Harbin 150040, China |
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| 基金项目： | The project was supported by the National Natural Science Foundation of China （No. 503780262）, the Supporting Certificate of China Postdoctoral Science Foundation （No 20070420882）, and the National Natural Science Foundation of Heilongjiang Province of China （No. E200812）. |
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| 摘 要： | Effects of reaction time, chlorine dosage, pH and temperature on the formation of disinfection byproducts(DBPs), were investigated during the chloramination of Cyclops metabolite solutions. The results showed that some species of DBPs like trichloromethane(TCM), dichloroacetic acid(DCAA) and trichloroacetic acid(TCAA) could accumulate to their respective stable values with a progressive elevation in reaction time and monochloramine concentration. And 1,1,1-2-trichloropropanone(1,1,1-TCP) content decreased correspondingly with a continuous increase of reaction time. The amounts of chloral hydrate(CH), chloropicrin(TCNM), 1,1,1-TCP and DCAA firstly increased and then decreased with increasing monochloramine doses. Higher temperature resulted in a decrease of CH, dichloroacetonitrile(DCAN), 1,1-dichloropropanone(1,1-DCP), 1,1,1-TCP, DCAA and TCAA concentration. pH affected the formation of the different DBPs distinctly. TCM accumulateded with the increase of pH under 9, and DCAA, TCAA, CH and 1,1-DCP decreased continuously with increasing pH from 5 to 10, and other DBPs had the maximum concentrations at pH 6–7.
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| 关 键 词： | 消毒副产物 氯胺消毒 代谢产物 形成因素 巨人 反应时间 pH值 TCP |
| 收稿时间： | 22 April 2013 |
| 修稿时间： | 31 August 2013 |
Influencing factors of disinfection byproducts formation during chloramination of Cyclops metabolite solutions |
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| Xingbin Sun,Lei Sun,Ying Lu,Jing Zhang,Kejing Wang.Influencing factors of disinfection byproducts formation during chloramination of Cyclops metabolite solutions[J].Journal of Environmental Sciences,2014,26(3):575-580. |
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| Authors: | Xingbin Sun Lei Sun Ying Lu Jing Zhang and Kejing Wang |
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| Institution: | Department of Environmental Science, Northeast Forestry University, Harbin 150040, China;Department of Environmental Science, Northeast Forestry University, Harbin 150040, China;Department of Environmental Science, Northeast Forestry University, Harbin 150040, China;Department of Environmental Science, Northeast Forestry University, Harbin 150040, China;Department of Environmental Science, Northeast Forestry University, Harbin 150040, China |
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| Abstract: | Effects of reaction time, chlorine dosage, pH and temperature on the formation of disinfection byproducts (DBPs), were investigated during the chloramination of Cyclops metabolite solutions. The results showed that some species of DBPs like trichloromethane (TCM), dichloroacetic acid (DCAA) and trichloroacetic acid (TCAA) could accumulate to their respective stable values with a progressive elevation in reaction time and monochloramine concentration. And 1,1,1-2-trichloropropanone (1,1,1-TCP) content decreased correspondingly with a continuous increase of reaction time. The amounts of chloral hydrate (CH), chloropicrin (TCNM), 1,1,1-TCP and DCAA firstly increased and then decreased with increasing monochloramine doses. Higher temperature resulted in a decrease of CH, dichloroacetonitrile (DCAN), 1,1-dichloropropanone (1,1-DCP), 1,1,1-TCP, DCAA and TCAA concentration. pH affected the formation of the different DBPs distinctly. TCM accumulateded with the increase of pH under 9, and DCAA, TCAA, CH and 1,1-DCP decreased continuously with increasing pH from 5 to 10, and other DBPs had the maximum concentrations at pH 6-7. |
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| Keywords: | chloramination Cyclops metabolite solutions DBPs |
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