| 不同分子质量区间腐殖酸的氯化反应特性研究 |
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| 引用本文： | 朱志良,葛元新,马红梅,赵建夫.不同分子质量区间腐殖酸的氯化反应特性研究[J].中国给水排水,2008,24(19). |
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| 作者姓名： | 朱志良 葛元新 马红梅 赵建夫 |
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| 作者单位： | 1. 同济大学污染控制与资源化研究国家重点实验室,上海,200092
2. 同济大学污染控制与资源化研究国家重点实验室,上海,200092;上海市闵行区环境监测一站,上海,201100 |
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| 摘 要： | 以自配的腐殖酸水样为研究对象，投加次氯酸钠对其进行消毒，考察了消毒过程中三卤甲烷、卤乙酸的生成量及DOC、UV254、A410、A465/A656的变化情况。结果表明，分子质量为50—100ku的腐殖酸为生成三卤甲烷和卤乙酸的最主要前体物；消毒反应后，各分子质量区间腐殖酸的DOC、UV254和A410都有不同程度的下降，且对小分子质量腐殖酸的DOC、UV254和A410的去除率高于对大分子质量腐殖酸的；A465／A656的变化表明消毒过程中腐殖酸的分子质量呈下降趋势。
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| 关 键 词： | 腐殖酸 分子质量分布 消毒副产物 前体物 |
Study on Characteristics of Chlorination Reaction of Humic Acid in Different Molecular Weight Ranges |
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| ZHU Zhi-liang,GE Yuan-xin,MA Hong-mei,ZHAO Jian-fu.Study on Characteristics of Chlorination Reaction of Humic Acid in Different Molecular Weight Ranges[J].China Water & Wastewater,2008,24(19). |
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| Authors: | ZHU Zhi-liang GE Yuan-xin MA Hong-mei ZHAO Jian-fu |
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| Affiliation: | ZHU Zhi-liang1,GE Yuan-xin1,2,MA Hong-mei1,ZHAO Jian-fu1(1.State Key Laboratory of Pollution Control , Resources Reuse,Tongji University,Shanghai 200092,China,2.No.1 Environmental Monitoring Station of Minhang District,Shanghai 201100,China) |
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| Abstract: | The synthetic water samples containing humic acid were disinfected by sodium hypochlorite.The formation of trihalomethanes and haloacetic acids and the variation of DOC,UV254,A410 and A465/A656 of water samples during the chlorination reaction were investigated.The results show that the humic acid with molecular weight ranges of 50 to 100 ku is the most important precursor of trihalomethanes and haloacetic acids.After the chlorination reaction,DOC,UV254 and A410 of humic acid solution with different molecul... |
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| Keywords: | humic acid molecular weight distribution disinfection by-product precursor |
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