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付军, 周斌, 滕曼. 含氯胺水管网输配过程中红水现象的产生机理[J]. 环境化学, 2016, 35(12): 2575-2581. doi: 10.7524/j.issn.0254-6108.2016.12.2016042001
引用本文: 付军, 周斌, 滕曼. 含氯胺水管网输配过程中红水现象的产生机理[J]. 环境化学, 2016, 35(12): 2575-2581. doi: 10.7524/j.issn.0254-6108.2016.12.2016042001
shu
FU Jun, ZHOU Bin, TENG Man. Study on the mechanism of red water phenomenon during drinking water distribution by chloramination disinfection[J]. Environmental Chemistry, 2016, 35(12): 2575-2581. doi: 10.7524/j.issn.0254-6108.2016.12.2016042001
Citation: FU Jun, ZHOU Bin, TENG Man. Study on the mechanism of red water phenomenon during drinking water distribution by chloramination disinfection[J]. Environmental Chemistry, 2016, 35(12): 2575-2581. doi: 10.7524/j.issn.0254-6108.2016.12.2016042001
shu

含氯胺水管网输配过程中红水现象的产生机理

  • 1.

    中日友好环境保护中心, 北京, 100029;

  • 2.

    中国21世纪议程管理中心, 北京, 100038;

  • 3.

    中国环境监测总站, 北京, 100012

  • 基金项目:

    国家自然科学基金（51508582）资助.

Study on the mechanism of red water phenomenon during drinking water distribution by chloramination disinfection

  • 1.

    Sino-Japan Friendship Centre for Environmental Protection, Beijing, 100029, China;

  • 2.

    The Administrative Center for China's Agenda 21, Beijing, 100038, China;

  • 3.

    China National Environmental Monitoring Center, Beijing, 100012, China

  • Fund Project: Supported by the National Natural Science Foundation of China (51508582).

  • 摘要: 以北方某城市区域管网为研究对象，考察了该区域管网管材分布情况及氯胺消毒水的水质变化特征.结果显示，该区域管网水质稳定，二次消毒剂氯胺衰减动力学符合氯胺自身降解的二级动力学过程，说明该区域干管输送过程对水质指标影响不大，红水现象主要来自于户线管网.通过旧管道输水模拟实验，对该市因变更水源导致红水现象的过程和机理进行了分析，结果表明，氯胺对铁管材的腐蚀性比氯更强，更能导致金属的溶出；原水中硫酸盐升高能加剧水质对管道的腐蚀性.XRD分析表明，发生过红水的管道α-FeOOH的含量较少，β，γ-FeOOH的含量大于α-FeOOH；而没有发生过红水的管道α-FeOOH含量明显大于β，γ-FeOOH，α-FeOOH可能是铁质管道内壁形成致密保护层从而保持水质稳定的主要成分.
    Abstract: This paper systematically studied the water quality changes of the regional distribution system influenced by pipe materials and chloramination disinfection in a northern city in China. The results showed that the water quality of the regional distribution system was stable, and the rate of chloramine decay followed the second order kinetics which was the same as the decay mode of chloramine itself in water. It indicated that the transmission process of regional distribution system had little influence on water quality. Through the old pipeline simulation experiments in laboratory, we analyzed the process and mechanism of red water phenomenon caused by the change of water source. The corrosivity of chloramine in iron pipe was stronger than chlorine, and chloramine increased the metal dissolution in raw water. The corrosivity of raw water would be enhanced when the concentration of sulfate was increased. Via XRD analysis, the pipeline in which red water phenomenon occurred contained less α-FeOOH and more β,γ-FeOOH, while the opposite was true in the pipeline where the red water phenomenon never occurred. It was supposed that α-FeOOH might be the main component of the dense protective layer formed on the inner wall of the iron pipe, which helped to maintain the stability of water quality.
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出版历程
  • 收稿日期:  2016-04-20
  • 刊出日期:  2016-12-15
付军, 周斌, 滕曼. 含氯胺水管网输配过程中红水现象的产生机理[J]. 环境化学, 2016, 35(12): 2575-2581. doi: 10.7524/j.issn.0254-6108.2016.12.2016042001
引用本文: 付军, 周斌, 滕曼. 含氯胺水管网输配过程中红水现象的产生机理[J]. 环境化学, 2016, 35(12): 2575-2581. doi: 10.7524/j.issn.0254-6108.2016.12.2016042001
shu
FU Jun, ZHOU Bin, TENG Man. Study on the mechanism of red water phenomenon during drinking water distribution by chloramination disinfection[J]. Environmental Chemistry, 2016, 35(12): 2575-2581. doi: 10.7524/j.issn.0254-6108.2016.12.2016042001
Citation: FU Jun, ZHOU Bin, TENG Man. Study on the mechanism of red water phenomenon during drinking water distribution by chloramination disinfection[J]. Environmental Chemistry, 2016, 35(12): 2575-2581. doi: 10.7524/j.issn.0254-6108.2016.12.2016042001
shu

含氯胺水管网输配过程中红水现象的产生机理

  • 1.  中日友好环境保护中心, 北京, 100029;
  • 2.  中国21世纪议程管理中心, 北京, 100038;
  • 3.  中国环境监测总站, 北京, 100012
  • 收稿日期:  2016-04-20
基金项目:

国家自然科学基金（51508582）资助.

摘要: 以北方某城市区域管网为研究对象，考察了该区域管网管材分布情况及氯胺消毒水的水质变化特征.结果显示，该区域管网水质稳定，二次消毒剂氯胺衰减动力学符合氯胺自身降解的二级动力学过程，说明该区域干管输送过程对水质指标影响不大，红水现象主要来自于户线管网.通过旧管道输水模拟实验，对该市因变更水源导致红水现象的过程和机理进行了分析，结果表明，氯胺对铁管材的腐蚀性比氯更强，更能导致金属的溶出；原水中硫酸盐升高能加剧水质对管道的腐蚀性.XRD分析表明，发生过红水的管道α-FeOOH的含量较少，β，γ-FeOOH的含量大于α-FeOOH；而没有发生过红水的管道α-FeOOH含量明显大于β，γ-FeOOH，α-FeOOH可能是铁质管道内壁形成致密保护层从而保持水质稳定的主要成分.

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