氯、二氧化氯对氯胺消毒管网硝化作用控制效果对比

赵乐乐; 李星; 杨艳玲; 韩瑾; 李圭白

氯、二氧化氯对氯胺消毒管网硝化作用控制效果对比

1. 北京工业大学建筑工程学院, 北京 100124;
2. 哈尔滨工业大学市政环境工程学院, 哈尔滨 150090

基金项目:

国家科技重大专项资助项目(2009ZX07423-004)

国家自然科学基金资助项目(51178003).

详细信息

作者简介:
赵乐乐(1986—), 女, 博士研究生, 主要从事饮用水供水安全性保障技术方面的研究, E-mail: zhaolele_2008@126.com.

通讯作者:
李星(1963—), 男, 研究员, 博士生导师, 主要从事饮用水安全保障技术方面的研究, E-mail: lixing@bjut.edu.cn.

中图分类号: TU991.25
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出版历程
- 收稿日期: 2012-03-07
- 网络出版日期: 2022-11-02

Disinfectant Efficacy of Chlorine and Chlorine Dioxide in Nitrification Control in Water Distribution Systems

1. College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124，China;
2. School of Municipal and Environment Engineering, Harbin Institute of Technology, Harbin 150090, China

摘要

摘要: 采用2台串联BAR模拟给水管网系统, 通过对余氯、NH₄⁺-N、NO₂^--N、NO₃^--N、DO、HPC及AOB等指标检测, 评价氯和二氧化氯2种消毒剂对氯胺消毒管网中硝化作用的控制效果.研究结果表明:二氧化氯比等量氯更易提高管网中余氯质量浓度和DO质量浓度;氯消毒阶段NH₄⁺-N降解, NO₂^--N和NO₃^--N积累, 而投加二氧化氯后可有效控制硝化作用;与投加氯消毒相比, 投加等质量浓度 (0.6 mg/L) 二氧化氯时, 第1台BAR中悬浮和生物膜中HPC分别降低了2.54 log和1.63 log, 悬浮及生物膜中AOB降低约1 log;二氧化氯能对AOB起到控制灭活效果而等量氯对其几乎没有灭活效果, 在控制供水管网硝化作用方面, 二氧化氯与氯胺联用的消毒效果优于氯与氯胺.
- 消毒 /
- 氯胺 /
- 二氧化氯 /
- 亚硝酸菌 /
- 异养菌 /
- 硝化作用 /
- 饮用水配水管网
Abstract: Two biofilm annular reactors (BAR) in series were adopted in the study, and the effects of chlorine and chlorine dioxide disinfection on nitrification were compared by analyzing residue chlorine, NH₄⁺-N, NO₂^--N, NO₃^--N, DO, HPC and AOB.The results showed that chlorine dioxide was more effective than chlorine in enhancing the effluent concentration of residue chlorine and DO.The concentration of NH₄⁺-N was droped while NO₂^--N and NO₃^--N were increased during the stage of chlorine, but not happening during the stage of chlorine dioxide.Compared with equivalent chorine (0.6mg/L) , the chlorine dioxide was more effective in removing suspended and boifilm HPC with 2.54 log and 1.63 log reductions, respectively, and both suspended and biofilm AOB with 1 log reduction.Chlorine was ineffective in controlling AOB.Therefore, the effect of chorine dioxide combined with chloramine was better than chorine combined with chloramine in mitigating nitrification in distribution systems.
- disinfection /
- chloramine /
- chlorine dioxide /
- AOB /
- HPC /
- nitrification /
- water distribution systems

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参考文献(17)

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氯、二氧化氯对氯胺消毒管网硝化作用控制效果对比

作者简介: 赵乐乐(1986—), 女, 博士研究生, 主要从事饮用水供水安全性保障技术方面的研究, E-mail: zhaolele_2008@126.com.

通讯作者: 李星(1963—), 男, 研究员, 博士生导师, 主要从事饮用水安全保障技术方面的研究, E-mail: lixing@bjut.edu.cn.

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Disinfectant Efficacy of Chlorine and Chlorine Dioxide in Nitrification Control in Water Distribution Systems

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目录

作者简介:
赵乐乐(1986—), 女, 博士研究生, 主要从事饮用水供水安全性保障技术方面的研究, E-mail: zhaolele_2008@126.com.

通讯作者:
李星(1963—), 男, 研究员, 博士生导师, 主要从事饮用水安全保障技术方面的研究, E-mail: lixing@bjut.edu.cn.