DOI: 10.1016/j.watres.2018.06.042
Scopus记录号: 2-s2.0-85053025478
论文题名: Formation of brominated trihalomethanes during chlorination or ozonation of natural organic matter extracts and model compounds in saline water
作者: Liu Z.-Q. ; Shah A.D. ; Salhi E. ; Bolotin J. ; von Gunten U.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 143 起始页码: 492
结束页码: 502
语种: 英语
英文关键词: Aliphatic β-dicarbonyl acids
; Brackish water
; Brominated trihalomethanes
; Bromination
; Natural organic matter extracts
; Phenolic model compounds
Scopus关键词: Biogeochemistry
; Biological materials
; Bromine compounds
; Chlorination
; Extraction
; Mixtures
; Ozone
; Ozone water treatment
; Ozonization
; Seawater
; Sodium chloride
; Brackish water
; Bromination
; Model compound
; Natural organic matters
; Trihalomethanes
; Phenols
; brackish water
; chemical compound
; chemical reaction
; chlorination
; experimental study
; fulvic acid
; organic matter
; ozonation
; phenolic compound
; seawater
; Antarctica
; East Antarctica
; Pony Lake
; Ross Island
英文摘要: Oxidation experiments (chlorine, ozone and bromine) were carried out with synthetic saline waters containing natural organic matter (NOM) extracts and model compounds to evaluate the potential of these surrogates to mimic the formation of brominated trihalomethanes (Br-THMs) in natural saline waters. Synthetic saline water with Pony Lake fulvic acid (PLFA) showed comparable results to natural brackish and sea water for Br-THMs formation during chlorination and ozonation for typical ballast water treatment conditions ([Cl2]0 ≥ 5 mg/L or [O3]0 ≥ 3 mg/L). The molar CHBr3 yield in synthetic saline waters is higher for chlorination than for ozonation, since ozone reacts slower with bromide and faster with THM precursors. For bromination, the molar yields of CHBr3 for the NOM model compounds phenol, resorcinol, 3-oxopentanedioic acid and hydroquinone are 28, 62, 91 and 11%, respectively. CHBr3 formation is low during chlorination or ozonation of resorcinol-containing synthetic saline waters due to the faster reaction of resorcinol with these oxidants compared to the bromine formation from bromide. Oxidation experiments with mixtures of hydroquinone and phenol (or resorcinol) were conducted to mimic various functional groups of NOM reacting with Cl2 (or O3) in saline water. With increasing hydroquinone concentrations, the CHBr3 formation increases during both chlorination and ozonation of the mixtures, except for chlorination of the mixture of hydroquinone and resorcinol. The formation of THMs during chlorination of the mixture of hydroquinone and resorcinol is similar to that of resorcinol alone due to the much faster reaction of HOX with resorcinol compared to hydroquinone. In general, PLFA seems to be a reasonable DOM surrogate to simulate CHBr3 formation for realistic ballast water treatment. During chlorination, CHBr3 formations from phenol- and PLFA-containing synthetic brackish waters are comparable, for similar phenol contents. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112545
Appears in Collections: 气候减缓与适应
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作者单位: School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China; School of Civil Engineering and Division of Environmental and Ecological Engineering, Purdue University, West Lafayette, IN 47907, United States; Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, Dübendorf, CH-8600, Switzerland; School of Architecture, Civil and Environmental Engineering (ENAC), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland; Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, Universitätstrasse 16, Zürich, CH-8092, Switzerland
Recommended Citation:
Liu Z.-Q.,Shah A.D.,Salhi E.,et al. Formation of brominated trihalomethanes during chlorination or ozonation of natural organic matter extracts and model compounds in saline water[J]. Water Research,2018-01-01,143