Chemical and toxicological evaluation of an emerging pollutant (enrofloxacin) by catalytic wet air oxidation and ozonation in aqueous solution

	Chemical and toxicological evaluation of an emerging pollutant (enrofloxacin) by catalytic wet air oxidation and ozonation in aqueous solution
	Li, Yan 1; Zhang, Feifang 1; Liang, Xinmiao 1,3; Yediler, Ayfer 2
刊名	chemosphere
	2013
卷号	90 期号:2 页码:284-291
关键词	Catalytic wet air oxidation Ozonation Enrofloxacin Degradation products Bioluminescence test
通讯作者	章飞芳 ; ayferyediler
产权排序	3, 3
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.
学科主题	物理化学
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
收录类别	SCI
语种	英语
WOS记录号	WOS:000312618300020
公开日期	2013-10-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/117614]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
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.(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.