DOI: 10.1016/j.watres.2018.05.005
Scopus记录号: 2-s2.0-85047080300
论文题名: Potential risks from UV/H2O2 oxidation and UV photocatalysis: A review of toxic, assimilable, and sensory-unpleasant transformation products
作者: Wang W.-L. ; Wu Q.-Y. ; Huang N. ; Xu Z.-B. ; Lee M.-Y. ; Hu H.-Y.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 141 起始页码: 109
结束页码: 125
语种: 英语
英文关键词: Assimilability
; Organic pollutants
; Risk
; Toxicity
; Transformation products
; UV advanced oxidation process
Scopus关键词: Amines
; Carboxylation
; Degradation
; Oxidation
; Photocatalysis
; Risks
; Toxicity
; Water pollution
; Water treatment
; Advanced Oxidation Processes
; Assimilability
; Degradation kinetics
; Ecological systems
; Quality assessment
; Reaction conditions
; Transformation products
; Uv photocatalysis
; Organic pollutants
; dissolved organic matter
; hydrogen peroxide
; fragrance
; hydrogen peroxide
; oxidizing agent
; catalysis
; concentration (composition)
; degradation
; hydrogen peroxide
; organic pollutant
; oxidation
; reaction kinetics
; risk assessment
; toxic substance
; toxicity
; transformation
; ultraviolet radiation
; chemical analysis
; deamination
; decarboxylation
; genotoxicity
; human
; nonhuman
; organic pollution
; oxidation
; photocatalysis
; priority journal
; quality control
; Review
; sensory unpleasant transformation product
; toxicity
; toxicology
; ultraviolet radiation
; water pollutant
; water pollution
; water treatment
; animal
; chemistry
; color
; oxidation reduction reaction
; radiation response
; risk
; taste
; water management
; water pollutant
; Animals
; Color
; Humans
; Hydrogen Peroxide
; Odorants
; Oxidants
; Oxidation-Reduction
; Risk
; Taste
; Ultraviolet Rays
; Water Pollutants, Chemical
; Water Purification
英文摘要: UV based advanced oxidation processes (UV-AOPs) that efficiently eliminate organic pollutants during water treatment have been the subject of numerous investigations. Most organic pollutants are not completely mineralized during UV-AOPs but are partially oxidized into transformation products (TPs), thereby adding complexity to the treated water and posing risks to humans, ecological systems, and the environment. While the degradation kinetics and mechanisms of pollutants have been widely documented, there is little information about the risks associated with TPs. In this review, we have collated recent knowledge about the harmful TPs that are generated in UV/H2O2 and UV photocatalysis, two UV-AOPs that have been studied extensively. Toxic and assimilable TPs were ubiquitously observed in more than 80% of UV-AOPs of organic pollutants, of which the toxicity and assimilability levels changed with variations in the reaction conditions, such as the UV fluence and oxidant dosage. Previous studies and modeling assessments showed that toxic and assimilable TPs may be generated during hydroxylation, dealkylation, decarboxylation, and deamination. Among various reactions, TPs generated from dealkylation and decarboxylation were generally less and more toxic than the parent pollutants, respectively; TPs generated from decarboxylation and deamination were generally less and more assimilable than the parent pollutants, respectively. There is also potential concern about the sensory-unpleasant TPs generated by oxidations and subsequent metabolism of microorganisms. In this overview, we stress the need to include both the concentrations of organic pollutants and the evaluations of the risks from TPs for the quality assessments of the water treated by UV-AOPs. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112655
Appears in Collections: 气候减缓与适应
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作者单位: Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing, 100084, China; Key Laboratory of Microorganism Application and Risk Control of Shenzhen, Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China; Shenzhen Environmental Science and New Energy Technology Engineering Laboratory, Tsinghua-Berkeley Shenzhen Institute, Shenzhen, 518055, China
Recommended Citation:
Wang W.-L.,Wu Q.-Y.,Huang N.,et al. Potential risks from UV/H2O2 oxidation and UV photocatalysis: A review of toxic, assimilable, and sensory-unpleasant transformation products[J]. Water Research,2018-01-01,141