DOI: 10.1016/j.watres.2018.08.074
Scopus记录号: 2-s2.0-85059329100
论文题名: Comparative study on degradation of propranolol and formation of oxidation products by UV/H 2 O 2 and UV/persulfate (PDS)
作者: Yang Y. ; Cao Y. ; Jiang J. ; Lu X. ; Ma J. ; Pang S. ; Li J. ; Liu Y. ; Zhou Y. ; Guan C.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 543
结束页码: 552
语种: 英语
英文关键词: Carbonate radical
; Cl-containing radicals
; Hydroxyl radical
; Propranolol
; Sulfate radical
; Transformation products
Scopus关键词: Chlorine compounds
; Naphthalene
; Oxidation
; Protonation
; Sulfur compounds
; Toxicity
; Carbonate radical
; Hydroxyl radicals
; Propranolol
; Sulfate radicals
; Transformation products
; Effluents
; bicarbonate
; chloride
; ground water
; hydrogen peroxide
; hydroxyl radical
; naphthalene
; propranolol
; alcohol
; carbonate
; comparative study
; degradation
; effluent
; hydrogen peroxide
; hydroxyl radical
; naphthalene
; oxidation
; sulfate
; surface water
; transformation
; ultraviolet radiation
; wastewater
; acute toxicity
; Aliivibrio fischeri
; Article
; degradation
; electrophilicity
; hydroxylation
; ionization
; isomer
; luminescence
; molecular weight
; nonhuman
; oxidation
; oxidation kinetics
; pH
; priority journal
; protonation
; quantum yield
; rate constant
; reaction analysis
; retention time
; ring opening
; static electricity
; time of flight mass spectrometry
; toxicity assay
; ultraviolet radiation
; Vibrio fischeri
英文摘要: The frequent detection of propranolol, a widely used β-blocker, in wastewater effluents and surface waters has raised serious concern, due to its adverse effects on organisms. UV/hydrogen peroxide (UV/H 2 O 2 ) and UV/persulfate (UV/PDS) processes are efficient in eliminating propranolol in various waters, but the formation of oxidation products in these processes, as well as the assessment of their toxicity, has not been systematically addressed. In this study, we identified and compared transformation products of propranolol produced by hydroxyl radical ( • OH) and sulfate radical (SO 4 •- ). The electrostatic attraction enhances the reaction between SO 4 •- and the protonated form of propranolol, while • OH shows non-selectivity toward both protonated and neutral propranolol species. The hydroxylation of propranolol by • OH occurs at either amine moiety or naphthalene group while SO 4 •- favors the oxidation of the electron-rich naphthalene group. Further oxidation by • OH and SO 4 •- results in ring-opening products. Bicarbonate and chloride exert no effect on propranolol degradation. The generation of CO 3 •- and Cl-containing radicals is favorable to oxidizing naphthalene group. The acute toxicity assay of Vibrio fischeri suggests that SO 4 •- generates more toxic products than • OH, while CO 3 •- and Cl-containing radicals produce similar toxicity as SO 4 •- . High concentrations of bicarbonate in UV/H 2 O 2 increase the toxicity of treated solution. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122118
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China; School of Municipal and Environmental Engineering, Jilin Jianzhu University, Changchun, 130118, China; School of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
Recommended Citation:
Yang Y.,Cao Y.,Jiang J.,et al. Comparative study on degradation of propranolol and formation of oxidation products by UV/H 2 O 2 and UV/persulfate (PDS)[J]. Water Research,2019-01-01