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学科主题物理化学
Chemical and toxicological evaluation of an emerging pollutant (enrofloxacin) by catalytic wet air oxidation and ozonation in aqueous solution
Li, Yan1; Zhang, Feifang1; Liang, Xinmiao1,3; Yediler, Ayfer2; Zhang FF(章飞芳); AyferYediler
关键词Catalytic Wet Air Oxidation Ozonation Enrofloxacin Degradation Products Bioluminescence Test
刊名CHEMOSPHERE
2013
DOI10.1016/j.chemosphere.2012.06.068
90期:2页:284-291
收录类别SCI
文章类型Article
部门归属18
项目归属1803
产权排名3, 3
WOS标题词Science & Technology ; Life Sciences & Biomedicine
类目[WOS]Environmental Sciences
研究领域[WOS]Environmental Sciences & Ecology
关键词[WOS]WATER TREATMENT PLANTS ; WASTE-WATER ; FLUOROQUINOLONE ANTIBIOTICS ; DEGRADATION-PRODUCTS ; AQUATIC ENVIRONMENT ; ROT FUNGUS ; TRANSFORMATION ; CHINA ; CIPROFLOXACIN ; PATHWAYS
英文摘要This study evaluates the degradation efficiency of enrofloxacin (ENR) by catalytic wet air oxidation (CWAO) and ozonation. Results obtained by CWAO experiments show that 99.5% degradation, 37.0% chemical oxidation demand (COD) removal and 51.0% total organic carbon (TOC) conversion were obtained when 100 mol% FeCl3 and 25 mol% NaNO2 at 150 degrees C under 0.5 MPa oxygen pressure after 120 min are used. The degradation products are identified by liquid chromatography-tandem mass spectrometry (LC-MS/MS), gas chromatography-mass spectrometry (GC-MS) and ion chromatography (IC). The oxidation end products, F-, NO3- and NH4+ were determined by IC. The BOD5/COD ratio as a measure of the biodegradability of the parent compound increased from 0.01 to 0.12 after 120 min of reaction time, indicating an improved biodegradability of the parent compound. The inhibition of bioluminescence of the marine bacteria V. fischeri decreased from 43% to 12% demonstrating a loss in toxicity of ENR during CWAO. Ozonation of 0.2 mM ENR was carried out with an ozone concentration of 7.3 g m(-3) at pH 7. ENR decomposition with a degradation rate of 87% was obtained corresponding to the reaction time. Moderate changes in COD (18%) and TOC (17%) removal has been observed. The bioluminescence inhibition increased from 8% to 50%, due to the generation of toxic degradation products during ozonation. In comparison to the widely use of well developed method of ozonation CWAO exhibits better performance in terms of COD, TOC removals and generates less toxic products. (C) 2012 Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000312618300020
引用统计
被引频次:23[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/117614
专题中国科学院大连化学物理研究所
通讯作者Zhang FF(章飞芳); AyferYediler
作者单位1.E China Univ Sci & Technol, Sch Pharm, Shanghai 200237, Peoples R China
2.German Res Ctr Environm Hlth GmbH, Helmholtz Zentrum Munchen, Inst Ecol Chem, D-85764 Neuherberg, Germany
3.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714
Li, Yan,Zhang, Feifang,Liang, Xinmiao,et al. Chemical and toxicological evaluation of an emerging pollutant (enrofloxacin) by catalytic wet air oxidation and ozonation in aqueous solution[J]. CHEMOSPHERE,2013,90(2):284-291.
APA Li, Yan,Zhang, Feifang,Liang, Xinmiao,Yediler, Ayfer,章飞芳,&AyferYediler.(2013).Chemical and toxicological evaluation of an emerging pollutant (enrofloxacin) by catalytic wet air oxidation and ozonation in aqueous solution.CHEMOSPHERE,90(2),284-291.
MLA Li, Yan,et al."Chemical and toxicological evaluation of an emerging pollutant (enrofloxacin) by catalytic wet air oxidation and ozonation in aqueous solution".CHEMOSPHERE 90.2(2013):284-291.
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