氨氮和硝酸盐氮对再生水管网腐蚀状况的影响研究

doi:10.11894/1005-829x.2016.36(11).029

工业水处理 ›› 2016, Vol. 36 ›› Issue (11): 29-33. doi: 10.11894/1005-829x.2016.36(11).029

氨氮和硝酸盐氮对再生水管网腐蚀状况的影响研究

张雅君¹, 杜婷婷², 孙丽华¹, 姚凌峰², 范登云²

1. 北京建筑大学城市雨水系统与水环境省部共建教育部重点试验室, 北京 100044;
2. 北京建筑大学环境与能源工程学院, 北京 100044

收稿日期:2016-09-15 出版日期:2016-11-20 发布日期:2016-11-22
通讯作者: 孙丽华,博士,讲师。E-mail:sunlihuashd@163.com。 E-mail:sunlihuashd@163.com
作者简介:张雅君(1965-),博士,教授。E-mail:zhangyajun@bucea.edu.cn。
基金资助:
国家自然科学基金项目（51278026）

Research on the influences of ammonia nitrogen and nitrate nitrogen on the corrosion status of reclaimed water pipe network

Zhang Yajun¹, Du Tingting², Sun Lihua¹, Yao Lingfeng², Fan Dengyun²

1. Key Laboratory of Urban Stormwater System and Water Environment, Co-constructed Province-Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;
2. School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China

Received:2016-09-15 Online:2016-11-20 Published:2016-11-22

摘要/Abstract

摘要：

在模拟真实管网水力条件下，从腐蚀速率、铁释放、腐蚀产物形貌及成分等方面，研究了氨氮和硝酸盐氮对碳钢腐蚀的影响。研究发现，加氨氮和硝酸盐氮的工况1与未加两种物质的工况2相比，工况1有更低的铁释放速率和腐蚀速率。两种工况腐蚀产物类型差别不大，腐蚀产物主要包括γ-FeOOH、α-FeOOH、Fe₂O₃、Fe₃O₄、β-FeOOH，未检测出碳酸钙但出现一种新的晶型——钙磷石，整体来说工况1腐蚀产物密实、稳定性更好。

关键词: 氨氮, 硝酸盐氮, 腐蚀速率, 铁释放, 腐蚀产物

Abstract:

Under the conditions of simulated real pipe network hydropower,the influences of ammonia nitrogen and nitrate nitrogen on the corrosion of carbon steel in the aspects of corrosion rate,iron release,shape,composition,etc. have been studies. It is found that when Working Conditions l,in which ammonia nitrogen and nitrate nitrogen are added,is compared with Working Condition 2,in which the two kinds of substances are not added,Working Condition 1 has lower iron release rate and corrosion rate than Working Condition 2. The difference of the types of corrosion products of the two working conditions are not very big. The corrosion products mainly include γ-FeOOH,α-FeOOH,Fe₂O₃,Fe₃O₄,and β-FeOOH,No calcium carbonate has been detected,but a new type of crystal polymorph:brushite comes into existence. On the whole,the corrosion products of Working Condition 1 has better density and stability.

Key words: ammonia nitrogen, nitrate nitrogen, corrosion rate, iron release, corrosion products

中图分类号:

TU991

张雅君, 杜婷婷, 孙丽华, 姚凌峰, 范登云. 氨氮和硝酸盐氮对再生水管网腐蚀状况的影响研究[J]. 工业水处理, 2016, 36(11): 29-33.

Zhang Yajun, Du Tingting, Sun Lihua, Yao Lingfeng, Fan Dengyun. Research on the influences of ammonia nitrogen and nitrate nitrogen on the corrosion status of reclaimed water pipe network[J]. INDUSTRIAL WATER TREATMENT, 2016, 36(11): 29-33.

https://www.iwt.cn/CN/Y2016/V36/I11/29

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氨氮和硝酸盐氮对再生水管网腐蚀状况的影响研究

Research on the influences of ammonia nitrogen and nitrate nitrogen on the corrosion status of reclaimed water pipe network

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氨氮和硝酸盐氮对再生水管网腐蚀状况的影响研究

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