Investigation on degradation behavior of dissolved effluent organic matter, organic micro-pollutants and bio-toxicity reduction from secondary effluent treated by ozonation

doi:10.1016/j.chemosphere.2018.11.039

CORC > 兰州理工大学 > 兰州理工大学

	Investigation on degradation behavior of dissolved effluent organic matter, organic micro-pollutants and bio-toxicity reduction from secondary effluent treated by ozonation
	Li, Mo 2; Chen, Zhiqiang 1,2; Wang, Zhenzhe 3; Wen, Qinxue 2
刊名	CHEMOSPHERE
	2019-02
卷号	217 页码:223-231
关键词	Dissolved effluent organic matters (dEfOM) Organic micro-pollutants (OMPs) Ozonation Genotoxicity Estrogenic activity
ISSN号	0045-6535
DOI	10.1016/j.chemosphere.2018.11.039
英文摘要	The environmental risk of secondary effluent has caused increasing attention in recent years, the negative effect of dissolved effluent organic matters (dEfOM) and organic micro-pollutants (OMPs) was a hot research point. In this research, the degradation behavior of dEfOM and fourteen OMPs in the ozonation was revealed using spectroscopic and chromatographic tools. Ozonation was effective for reducing UV254, but had limited effect in dissolved organic carbon reduction. The dEfOM with shorter absorption wavelength was preferentially removed in the ozonation (230 nm > 240 nm > 254 nm) and high molecular weight humics was largely reduced by the ozonation. Soluble microbial by-products were more reactive with ozone than humic acid as reflected by the fluorescence. Degradation behavior of the OMPs was identified based on their elimination kinetics and molecular structures and a simplified classification method was proposed. The group I OMPs (logk(O3)>5) showed high removal efficiency with 1 mg/L of ozone, while the removal of group II OMPs (1< logk(O)(3) <5) was largely dependent on the ozone dose. The C=C bond, deprotonated amidogen, phenolic, aniline and anisole groups in these OMPs structures were the main reaction sites with ozone. The group Ill OMPs without active groups in the molecules showed slight removal in the ozonation. Moreover, genotoxicity and estrogenic activity were simultaneously analyzed for further evaluation on the risk of the effluent. The genotoxicity and estrogenic activity of the secondary effluent were 73.46 mu g 4-NQO/L and 519.86 ng E2/L, respectively and an ozone dose of 10 mg/L could reduce the bio-toxicity to the detection limit. (C) 2018 Elsevier Ltd. All rights reserved.
资助项目	State Key Laboratory of Urban Water Resource and Environment (Harbin Institute of Technology)[2017DX08]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000456223500026
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32138]
专题	兰州理工大学
通讯作者	Wen, Qinxue
作者单位	1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730070, Gansu, Peoples R China 2.HIT, SKLUWRE, Harbin 150090, Heilongjiang, Peoples R China 3.Jiangsu Huaxin Urban Planning & Design Inst Co Lt, Lianyungang 200000, Peoples R China
推荐引用方式 GB/T 7714	Li, Mo,Chen, Zhiqiang,Wang, Zhenzhe,et al. Investigation on degradation behavior of dissolved effluent organic matter, organic micro-pollutants and bio-toxicity reduction from secondary effluent treated by ozonation[J]. CHEMOSPHERE,2019,217:223-231.
APA	Li, Mo,Chen, Zhiqiang,Wang, Zhenzhe,&Wen, Qinxue.(2019).Investigation on degradation behavior of dissolved effluent organic matter, organic micro-pollutants and bio-toxicity reduction from secondary effluent treated by ozonation.CHEMOSPHERE,217,223-231.
MLA	Li, Mo,et al."Investigation on degradation behavior of dissolved effluent organic matter, organic micro-pollutants and bio-toxicity reduction from secondary effluent treated by ozonation".CHEMOSPHERE 217(2019):223-231.