RCEES OpenIR  > 中国科学院饮用水科学与技术重点实验室
Trihalomethanes formation enhanced by manganese chlorination and deposition in plastic drinking water pipes
Yu, Ying; Li, Guiwei; Chen, Ruya; Shi, Baoyou
2021-10-01
Source PublicationWATER RESEARCH
ISSN0043-1354
Volume204Pages:-
AbstractResidual manganese(II) in finished water undergoes further oxidation and deposition in drinking water distribution systems (DWDS), and Mn deposits can function as sites for accumulating organic and inorganic pollutants. This study aims to explore how Mn transformation and deposition affect the formation of disinfection byproducts (DBPs) in chlorinated DWDS, and trihalomethanes (THMs) was selected as a representative DBP. In a 100 mu g/L Mn system, regulated THMs (chlorinated/bromated-THMs) increased by over 20% higher than Mn-free system after 150-day operation; when 50 mu g/L iodide (I-) entered pipe systems after 150 days, iodinated THMs (I-THMs) in 100 mu g/L Mn system increased by over 30% compared with Mn-free system. These promotions were attributed primarily to the accumulation of biomolecules and organic substances by tight and hard chlorinated Mn deposits. The residence of inactivated cells and the bridging role of surface Mn(III) in Mn deposits increased the quantity of THM precursors in DWDS. Furthermore, the rapid catalytic oxidation of Mn(II) by preformed Mn oxides (MnO) x inhibited the conversion of free iodine (HOI/OI-) to iodate, resulting in the generation of more I-THMs. This study provides new insights into the DBP risks caused by Mn in DWDS.
Department中国科学院饮用水科学与技术重点实验室
KeywordDrinking water distribution system Trihalomethanes Manganese Organics accumulation Catalytic oxidation
WOS Research AreaEngineering, Environmental ; Environmental Sciences ; Water Resources
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46271
Collection中国科学院饮用水科学与技术重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Yu, Ying,Li, Guiwei,Chen, Ruya,et al. Trihalomethanes formation enhanced by manganese chlorination and deposition in plastic drinking water pipes[J]. WATER RESEARCH,2021,204:-.
APA Yu, Ying,Li, Guiwei,Chen, Ruya,&Shi, Baoyou.(2021).Trihalomethanes formation enhanced by manganese chlorination and deposition in plastic drinking water pipes.WATER RESEARCH,204,-.
MLA Yu, Ying,et al."Trihalomethanes formation enhanced by manganese chlorination and deposition in plastic drinking water pipes".WATER RESEARCH 204(2021):-.
Files in This Item: Download All
File Name/Size DocType Version Access License
Trihalomethanes form(2536KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yu, Ying]'s Articles
[Li, Guiwei]'s Articles
[Chen, Ruya]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yu, Ying]'s Articles
[Li, Guiwei]'s Articles
[Chen, Ruya]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yu, Ying]'s Articles
[Li, Guiwei]'s Articles
[Chen, Ruya]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Trihalomethanes formation enhanced by manganese chlorination and deposition in plastic drinking water pipes.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.