Characteristics of biofilms and iron corrosion scales with ground and surface waters in drinking water distribution systems

被引：71
作者：
Li, Xiaoxiao [1 ]
Wang, Haibo [1 ]
Hu, Chun [1 ]
Yang, Min [1 ]
Hu, Hongying [2 ]
Niu, Junfeng [3 ]
机构：
[1] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China
[2] Tsinghua Univ, Sch Environm, Being 100084, Peoples R China
[3] Beijing Normal Univ, Sch Environm, Beijing 100875, Peoples R China
来源：
CORROSION SCIENCE | 2015年 / 90卷
基金：
中国国家自然科学基金;
关键词：
Iron; XRD; SEM; Microbiological corrosion; DENITRIFYING BACTERIA; NOSZ GENES; SULFATE; NITRATE; INHIBITION; RELEASE; STEEL; NIRK; POPULATIONS; REDUCTION;
D O I：
10.1016/j.corsci.2014.10.028
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The composition of biofilm bacterial communities and iron corrosion scales were studied in two drinking water distribution systems transporting groundwater (DWDS-GW) and surface water (DWDS-SW). Loose corrosion products were formed containing alpha-FeOOH in DWDS-GW, while dense crystallized particles were formed in DWDS-SW, including alpha-FeOOH, Fe3O4 and CaCO3. The biofilms in the two systems had the same bacterial diversity, denitrifying functional genes and 16S rRNA gene copies, but the bacterial communities were very different. It was found that nitrate-reducing bacteria in biofilms that are associated with iron cycling played a large role in the formation of Fe3O4 and corrosion layers. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：331 / 339
页数：9
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