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Characterization of the bacterial communities and iron corrosion scales in drinking groundwater distribution systems with chlorine/chloramine
Li, Xiaoxiao; Wang, Haibo; Zhang, Yu; Hu, Chun; Yang, Min
2014
Source PublicationINTERNATIONAL BIODETERIORATION & BIODEGRADATION
ISSN0964-8305
Volume96Issue:1Pages:71-79
AbstractThe effect of chlorine and chloramine disinfection on bacterial communities and the corrosion of cast iron pipes was studied in drinking water distribution systems (DWDSs) transporting groundwater. ccFe0OH was the main corrosion product for both systems. However, loose corrosion products were formed in DWDSs with chlorine, whereas dense crystallized particles were formed in DWDSs with chloramine. Based on the functional genes and pyrosequencing assay results, both DWDSs had different compositions of corrosion-related bacteria in the bulk water and biofilms. The percentage of total denitrifying gene copy numbers in the 16S rRNA and the bacterial diversities were much higher at 220 d within the bulk water and biofilm in DWDSs disinfected with chloramine compared with those disinfected with chlorine. Most of the Noy-N in the raw water was biologically denitrified through chlorine DWDSs in the experimental period, whereas the same phenomena occurred only when denitrifying bacteria were increased in the effluent due to the role of autotrophic microbial nitrification in chloramine DWDSs. Furthermore, nitrate-dependent Fe(II) oxidation occurred to a greater extent, leading to denser corrosion scales in DWDSs with chloramine compared with those disinfected with chlorine. O 2014 Elsevier Ltd. All rights reserved.
Department中国科学院饮用水科学与技术重点实验室
KeywordBiofilm Corrosion Groundwater Drinking Water Pyrosequencing
WOS IDWOS:000348889900010
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/9682
Collection中国科学院饮用水科学与技术重点实验室
环境水质学国家重点实验室
Recommended Citation
GB/T 7714
Li, Xiaoxiao,Wang, Haibo,Zhang, Yu,et al. Characterization of the bacterial communities and iron corrosion scales in drinking groundwater distribution systems with chlorine/chloramine[J]. INTERNATIONAL BIODETERIORATION & BIODEGRADATION,2014,96(1):71-79.
APA Li, Xiaoxiao,Wang, Haibo,Zhang, Yu,Hu, Chun,&Yang, Min.(2014).Characterization of the bacterial communities and iron corrosion scales in drinking groundwater distribution systems with chlorine/chloramine.INTERNATIONAL BIODETERIORATION & BIODEGRADATION,96(1),71-79.
MLA Li, Xiaoxiao,et al."Characterization of the bacterial communities and iron corrosion scales in drinking groundwater distribution systems with chlorine/chloramine".INTERNATIONAL BIODETERIORATION & BIODEGRADATION 96.1(2014):71-79.
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