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	Genotoxicity removal of reclaimed water during ozonation
	Xin Tang ; Qianyuan Wu ; Yang Yang ; Hongying Hu ; Xin Tang ; Qianyuan Wu ; Yang Yang ; Hongying Hu
	2016-03-30 ; 2016-03-30
关键词	ozonation genotoxicy specific ultraviolet absorbance fourier transform infrared spectroscopy X703
其他题名	Genotoxicity removal of reclaimed water during ozonation
中文摘要	Genotoxicity in wastewater and reclaimed water now is gaining increased attention because of genotoxins' potential damage to the ecosystem and human health. The effect of ozonation on genotoxicity in reclaimed water was investigated. It was found that ozonation decreased the genotoxicy dramatically in three tertiary treatment plants. In the further batch ozonation experiment in laboratory,secondary effluent sample used exhibited the genotoxicity of(41.1 ± 4.1) μg 4NQO/L. Ozonation with a dose of 10 mg O3/L completely removed the genotoxicity in secondary effluent. However,after ozonation, the dissolved organic carbonvalue of the sample didn't change much but the specific ultraviolet absorbance(SUVA) value dropped sharply. With the help of Fourier transform infrared spectroscopy, ozonation was found to change chemical aliphatic carbon and C–O of the dissolved arganic matter, which might be the reason of the significant decreases of SUVA and genotoxicity.; Genotoxicity in wastewater and reclaimed water now is gaining increased attention because of genotoxins' potential damage to the ecosystem and human health. The effect of ozonation on genotoxicity in reclaimed water was investigated. It was found that ozonation decreased the genotoxicy dramatically in three tertiary treatment plants. In the further batch ozonation experiment in laboratory,secondary effluent sample used exhibited the genotoxicity of(41.1 ± 4.1) μg 4NQO/L. Ozonation with a dose of 10 mg O3/L completely removed the genotoxicity in secondary effluent. However,after ozonation, the dissolved organic carbonvalue of the sample didn't change much but the specific ultraviolet absorbance(SUVA) value dropped sharply. With the help of Fourier transform infrared spectroscopy, ozonation was found to change chemical aliphatic carbon and C–O of the dissolved arganic matter, which might be the reason of the significant decreases of SUVA and genotoxicity.
语种	英语 ; 英语
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/144181]
专题	清华大学
推荐引用方式 GB/T 7714	Xin Tang,Qianyuan Wu,Yang Yang,et al. Genotoxicity removal of reclaimed water during ozonation[J],2016, 2016.
APA	Xin Tang.,Qianyuan Wu.,Yang Yang.,Hongying Hu.,Xin Tang.,...&Hongying Hu.(2016).Genotoxicity removal of reclaimed water during ozonation..
MLA	Xin Tang,et al."Genotoxicity removal of reclaimed water during ozonation".(2016).

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