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	Potential contribution of inorganic ions to whole effluent acute toxicity and genotoxicity during sewage tertiary treatment
	Sun, Jian1; Quan, Ying1; Wang, Wei1; Zheng, Shaokui1; Liu, Xinchun2
刊名	Journal of hazardous materials
	2015-09-15
卷号	295页码:22-28
关键词	Acute toxicity Genotoxicity Sewage Tertiary treatment Inorganic ion
ISSN号	0304-3894
DOI	10.1016/j.jhazmat.2015.04.012
通讯作者	Zheng, shaokui(zsk@bnu.edu.cn)
英文摘要	Two acute toxicity tests (luminescent bacteria assay and cladoceran assay) and one genotoxicity test (broad bean assay) were used to evaluate whole effluent toxicity during the standard anion exchange resin-based pilot-scale sewage tertiary treatment that stably achieved significant dissolved organic carbon and inorganic ions reduction. the effect of six representative inorganic ions (i.e., cl-, so42-, no3--n, no2--n, nh4+-n and po43--p) on the acute toxicity and genotoxicity was further investigated. significant whole effluent genotoxicity reduction was observed as an similar to 57% micronucleated cell frequency reduction and similar to 46% mitotic index increment during the pilot-scale periods, which should be attributed to significant organic removal since no significant (p >= 0.116) increase in genotoxicity was observed with the increase in these ionic concentrations. however, no significant (p >= 0.14) reductions were observed for whole effluent acute toxicity using two acute toxicity assays during the pilot-scale periods, and these inorganic ions, especially nh4+-n, contributed considerably to the acute toxicity. based on pearson correlation coefficients, whole effluent acute toxicity showed significant positive (p < 0.001, r >= 0.758) correlations with the nh4+-n concentration. two optimal models were finally developed using step-wise multiple linear regression to predict the whole effluent acute toxicity via nh4+-n concentrations. (c) 2015 elsevier b.v. all rights reserved.
WOS关键词	WATER TREATMENT PLANTS ; ACTIVATED CARBON FILTRATION ; DISINFECTION BY-PRODUCTS ; WASTE-WATER ; SECONDARY EFFLUENT ; ORGANIC-MATTER ; DAPHNIA-MAGNA ; IN-VITRO ; OZONATION ; REMOVAL
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Environmental Sciences
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000356127400004
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2376763
专题	中国科学院大学
通讯作者	Zheng, Shaokui
作者单位	1.Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, MOE Key Lab Water & Sediment Sci, Beijing 100875, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Sun, Jian,Quan, Ying,Wang, Wei,et al. Potential contribution of inorganic ions to whole effluent acute toxicity and genotoxicity during sewage tertiary treatment[J]. Journal of hazardous materials,2015,295:22-28.
APA	Sun, Jian,Quan, Ying,Wang, Wei,Zheng, Shaokui,&Liu, Xinchun.(2015).Potential contribution of inorganic ions to whole effluent acute toxicity and genotoxicity during sewage tertiary treatment.Journal of hazardous materials,295,22-28.
MLA	Sun, Jian,et al."Potential contribution of inorganic ions to whole effluent acute toxicity and genotoxicity during sewage tertiary treatment".Journal of hazardous materials 295(2015):22-28.

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