中文版 | English
Title

Transformation of dissolved organic matter during UV/peracetic acid treatment

Author
Corresponding AuthorWang,Junjian
Publication Years
2023-04-01
DOI
Source Title
ISSN
0043-1354
EISSN
1879-2448
Volume232
Abstract
Peracetic acid combined ultraviolet (UV/PAA) process has garnered growing attention as a promising advanced oxidation process (AOP) for wastewater treatment, but the corresponding transformation of ubiquitous dissolved organic matter (DOM) under this AOP remains unknown. This study systematically investigated the changes in characteristics and composition of DOM under UV/PAA, as well as the underlying mechanisms by multiple spectroscopic analyses and Fourier transform ion cyclotron resonance mass spectrometry. UV/PAA treatment dramatically decreased aromaticity, apparent molecular weight, and fluorescent abundance of DOM with the production of more oxidized and saturated compounds. The reactive species (i.e., OH and CHC(O)O/CHC(O)OO) in UV/PAA contributed primarily to DOM changes but showed different reaction selectivity and mechanisms. OH reacts with DOM components and mainly yields oxygenation products via a radical addition pathway. Comparatively, the electron transfer route is more likely to occur in CHC(O)O/CHC(O)OO-induced DOM transformation. Aside from oxygenation products, electron transfer could exclusively generate decarboxylation products and distinguishes CHC(O)O/CHC(O)OO-based AOPs from OH-based AOPs. These findings significantly improve knowledge of DOM alterations under UV/PAA AOP at both the bulk and molecular levels.
Keywords
URL[Source Record]
Indexed By
Language
English
Important Publications
NI Journal Papers
SUSTech Authorship
First ; Corresponding
Funding Project
National Key Research and Development Program of China[2021YFA1202500] ; Na- tional Natural Science Foundation of China["22206070","42122054","42192513"] ; Guangdong Basic and Applied Basic Research Foundation["2021A1515110153","2021B1515020082"] ; Guangdong Provincial Education Department[2020KCXTD006] ; Shenzhen Science and Technology Innovation Commission[JCYJ20220818100403007]
WOS Research Area
Engineering ; Environmental Sciences & Ecology ; Water Resources
WOS Subject
Engineering, Environmental ; Environmental Sciences ; Water Resources
WOS Accession No
WOS:000931805300001
Publisher
ESI Research Field
ENVIRONMENT/ECOLOGY
Scopus EID
2-s2.0-85147213353
Data Source
Scopus
Citation statistics
Cited Times [WOS]:1
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/442590
DepartmentSchool of Environmental Science and Engineering
Affiliation
1.Guangdong Key Laboratory of Soil and Groundwater Pollution Control,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
2.State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
3.The Key Laboratory of Water and Sediment Sciences,Ministry of Education,College of Environmental Science and Engineering,Peking University,Beijing,100871,China
4.State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing,102249,China
5.School of Civil and Environmental Engineering,Georgia Institute of Technology,Atlanta,30332,United States
First Author AffilicationSchool of Environmental Science and Engineering
Corresponding Author AffilicationSchool of Environmental Science and Engineering
First Author's First AffilicationSchool of Environmental Science and Engineering
Recommended Citation
GB/T 7714
Du,Penghui,Liu,Wen,Zhang,Qiang,et al. Transformation of dissolved organic matter during UV/peracetic acid treatment[J]. WATER RESEARCH,2023,232.
APA
Du,Penghui.,Liu,Wen.,Zhang,Qiang.,Zhang,Peng.,He,Chen.,...&Wang,Junjian.(2023).Transformation of dissolved organic matter during UV/peracetic acid treatment.WATER RESEARCH,232.
MLA
Du,Penghui,et al."Transformation of dissolved organic matter during UV/peracetic acid treatment".WATER RESEARCH 232(2023).
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