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浙江大学学报(工学版)
土木工程     
氧化还原电位作为铁释放监测参数的中试研究
蒋伟1, 柳景青1, 叶萍2, 李杭加2
1. 浙江大学 市政工程研究所,浙江 杭州 310058;2. 嘉兴市嘉源给排水有限公司,浙江 嘉兴 314000
Use of oxidation-reduction potential to monitor iron release from corroded iron pipes in drinking water distribution system
JIANG Wei1, LIU Jing-qing1, YE Ping2, LI Hang-jia2
1. Municipal Engineering Research Institute, Zhejiang University, Hangzhou 310058, China; 2. Jiaxing Jiayuan Water Supply Company, Jiaxing 314000, China
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摘要:

对东部某市实际管网中2个管网中试的铸铁管管垢样品进行扫描电镜(SEM)、能谱扫描(EDS)和X射线衍射(XRD)分析.结果表明,两点管垢的物理化学特性相似;管垢表面均为受创硬壳层;主要组成元素为Fe、O、C,主要组成物质为Fe3O4、FeOOH等铁氧化物.通过中试对不同季节下水流停滞后氧化还原电位(ORP)与铁释放的相关性进行研究,并将其与溶解氧(DO)和浊度的铁释放相关性进行对比.结果表明,即使管垢条件相似,出厂水在运输过程中的水质条件变化仍能导致铁释放出现明显差异;不同季节中同一管道所产生的铁释放存在差异.ORP可以作为铁释放的监测指标;当ORP>200 mV时,表明铁释放受到控制,基本没有溶解性铁释放;当ORP<200 mV时,这表明铁释放量大,会产生溶解性铁释放.ORP的铁释放相关性优于溶解氧.

Abstract:

Pipe scale samples were obtained from two pilot-scale drinking water distribution systems in an eastern city, and analyzed with SEM, EDS and XRD. Results indicate that physicochemical characteristics of two pipe scale are similar; Pipe scale surface is covered with shell-like layer; Major elements are Fe, O and C, and main substances are Fe3O4 and FeOOH. By pilot study, correlation between oxidation-reduction potential (ORP) and iron release in stagnant water was investigated in different seasons, and was compared with iron release correlations of dissolved oxygen (DO) and turbidity. Results show that although pipe scales characteristics are similar, changes in water quality during transmission can cause significant differences in iron release. Iron release from the same pipe was various in different seasons. ORP can be an indicator in predicting iron release. When ORP>200 mV, iron release is governed and there is no dissolved iron release. When ORP<200 mV, iron release severely and dissolved iron can release. ORP correlates iron release better than DO.

出版日期: 2015-04-01
:  TU 991  
基金资助:

国家“863”高技术研究发展计划资助项目(2012AA062608); 中央高校基本科研业务费专项资金资助项目(2012FZA4020);水体污染控制与治理国家科技重大专项资助项目(2012ZX07403-003)

通讯作者: 柳景青,男,研究员     E-mail: liujingqing2005@163.com
作者简介: 蒋伟(1986—),男,博士生,从事管网水质评价的研究. E-mail:10912051@zju.edu.cn
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引用本文:

蒋伟, 柳景青, 叶萍, 李杭加. 氧化还原电位作为铁释放监测参数的中试研究[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2015.04.023.

JIANG Wei, LIU Jing-qing, YE Ping, LI Hang-jia. Use of oxidation-reduction potential to monitor iron release from corroded iron pipes in drinking water distribution system. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2015.04.023.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2015.04.023        http://www.zjujournals.com/eng/CN/Y2015/V49/I4/769

[1] 周韬. 金属给水管道腐蚀现状及研究进展[J]. 国外建材科技, 2008, 29(3): 34-37.
ZHOU Tao. Research and development of corrosion of metallic pipe in water distribution system [J]. Science and Technology of Overseas Building Materials, 2008, 29(3): 34-37.
[2] DEBORDE M, VON GUNTEN U. Reactions of chlorine with inorganic and organic compounds during water treatment—kinetics and mechanisms: a critical review [J]. Water Research, 2008, 42(1): 13-51.
[3] SARIN P, SNOEYINK V L, LYTLE D A, et al. Iron corrosion scales: model for scale growth, iron release, and colored water formation [J]. Journal of Environmental Engineering, 2004, 130(4): 364-373.
[4] QURESHI A, LO K V, LIAO P H, et al. Real-time treatment of dairy manure: Implications of oxidation reduction potential regimes to nutrient management strategies [J]. Bioresource Technology, 2008, 99(5): 1169-1176.
[5] 高玖藜,柳景青,张土乔,等. 水中氯离子和腐植酸对管网铁释放的影响[J]. 浙江大学学报:工学版, 2013, 47(8): 1321-1328.
GAO Jiu-li, LIU Jing-qing, ZHANG Tu-qiao, et al. Effects of chloride and humic acid on iron release in water distribution system [J]. Journal of Zhejiang University: Engineering Science, 2013, 47(8): 1321-1328.
[6] GERKE T L, MAYNARD J B, SCHOCK M R, et al. Physiochemical characterization of five iron tubercles from a single drinking water distribution system: possible new insights on their formation and growth [J]. Corrosion Science, 2008, 50(7): 2030-2039.
[7] SARIN P, SNOEYINK V L, BEBEE J, et al. Iron release from corroded iron pipes in drinking water distribution systems: effect of dissolved oxygen [J]. Water Research, 2004, 38(5): 1259-1269.

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