| 太湖水源中二氯乙腈前体物特性及其去除 |
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| 引用本文： | 董坚,蒋福春,周东菊,林涛,陈卫.太湖水源中二氯乙腈前体物特性及其去除[J].河海大学学报(自然科学版),2018,46(4):296-300. |
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| 作者姓名： | 董坚 蒋福春 周东菊 林涛 陈卫 |
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| 作者单位： | 苏州市自来水有限公司;河海大学环境学院 |
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| 基金项目： | 国家自然科学基金重点项目(51438006)；苏州市科技计划项目(SS201530) |
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| 摘 要： | 从有机物性质角度对二氯乙腈前体物进行分析,探究太湖流域某深度处理水厂各工艺单元对二氯乙腈生成势的去除。试验结果表明,水厂原水中亲水性有机物、分子量小于1 k Da或大于10 k Da的有机物是二氯乙腈的主要前体物。深度处理工艺水厂对二氯乙腈前体物的去除率高达79.3%,其中O_3/BAC工艺的贡献率远高于常规工艺。
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| 关 键 词： | 含氮消毒副产物 二氯乙腈 生成势 前体物 深度处理 太湖贡湖湾水源地水样 |
Study on the dichloroacetonitrile precursors and its removal in the source water of Taihu Lake |
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| DONG Jian,JIANG Fuchun,ZHOU Dongju,LIN Tao and CHEN Wei.Study on the dichloroacetonitrile precursors and its removal in the source water of Taihu Lake[J].Journal of Hohai University (Natural Sciences ),2018,46(4):296-300. |
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| Authors: | DONG Jian JIANG Fuchun ZHOU Dongju LIN Tao and CHEN Wei |
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| Institution: | Suzhou Water Supply Co. Ltd., Suzhou 215002, China,Suzhou Water Supply Co. Ltd., Suzhou 215002, China,College of Environment, Hohai University, Nanjing 210098, China,College of Environment, Hohai University, Nanjing 210098, China and College of Environment, Hohai University, Nanjing 210098, China |
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| Abstract: | The properties of organic matter in raw water were explored to identify the precursors of dichloroacetonitrile(DCAN). In addition, the removal efficiency of DCAN formation potential in the drinking water treating process of an advanced waterworks around Taihu Lake was also investigated. Results show that hydrophilic organic matter and organic matter with molecular weight <1 kDa or >10 kDa were main precursors of DCAN. The removal efficiency of DCAN precursors by the advanced water treating plant was as high as 79. 3% and the contribution rates of O3/BAC was much higher than the conventional process. |
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| Keywords: | nitrogenous disinfection by-product dichloroacetonitrile formation potential precursor advanced treatment process water source at the Gonghu Bay of Taihu Lake |
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