| 给水管网水中氯胺消毒的氨氮释放规律 |
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| 引用本文： | 胡领文,周玲玲,张永吉,邓慧萍.给水管网水中氯胺消毒的氨氮释放规律[J].净水技术,2014(1):72-75,96. |
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| 作者姓名： | 胡领文 周玲玲 张永吉 邓慧萍 |
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| 作者单位： | [1]同济大学长江水环境教育部重点实验室,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 |
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| 基金项目： | 国家自然科学基金资助项目,水体污染控制与治理科技重大专项（2012ZX07408001） |
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| 摘 要： | 研究了对不同氯氨比条件下氯胺释放氨氮的规律，考察了pH、有机物浓度、亚硝酸盐浓度和Fe2＋对氯胺释放氨氮规律的影响。结果表明随着氯氨比的增加氨氮释放量降低，Cl∶N＝3∶1和Cl∶N＝5∶1的氯胺释放氨氮的量分别为0．91和0．35 mg/L；pH对氯胺释放氨氮有一定影响，氨氮浓度随着pH升高而降低；有机物含量和亚硝酸盐浓度对氯胺释放氨氮有显著影响，随着有机物和亚硝酸盐含量的增加，氯胺释放的氨氮浓度增加；管网中的 Fe2＋也会加快氯胺释放氨氮的速度。
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| 关 键 词： | 氯胺 消毒 硝化作用 氨氮 释放 |
Release Rule of Ammonia Nitrogen from Chloramine Disinfection in Water Supply Distribution System |
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| Hu Lingwen,Zhou Lingling,Zhang Yongji,Deng Huiping.Release Rule of Ammonia Nitrogen from Chloramine Disinfection in Water Supply Distribution System[J].Water Purifcation Technology,2014(1):72-75,96. |
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| Authors: | Hu Lingwen Zhou Lingling Zhang Yongji Deng Huiping |
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| Affiliation: | 1. Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China ; 2. State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science ＆ Engineering, Tong]i University, Shanghai 200092, China) |
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| Abstract: | The release rule of ammonia nitrogen from chloramine at different chlorine-to-nitrogen ratio was studied. pH,concentration of organic matter,concentration of nitrite and Fe2＋ on release of ammonia nitrogen from chloramine was investigated. The results show that the higher Cl∶N is,the less ammonia nitrogen is released;when Cl∶N is 3∶1,the concentration of ammonia nitrogen released from chloramineis 0. 91 mg/L,when Cl∶N is 5∶1,that is 0. 35 mg/L. to some extent,pH has an impact on the release of ammonia nitrogen from chloramine,the concentration of ammonia nitrogen decreases with pH increasing;organic matter and nitrite has positive effects on the release,the higher the concentration of organic matter and nitrite is,the higher ammonia is released. Fe2＋ also can enhance the release. |
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| Keywords: | chloramine disinfection nitrification ammonia nitrogen release |
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