干旱区生态环境知识资源中心(Arid): Transport and retention of perfluorooctanoic acid (PFOA) in natural soils: Importance of soil organic matter and mineral contents, and solution ionic strength

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DOI	10.1016/j.jconhyd.2019.03.009
	Transport and retention of perfluorooctanoic acid (PFOA) in natural soils: Importance of soil organic matter and mineral contents, and solution ionic strength
	Lyu, Xueyan 1; Liu, Xing 1; Sun, Yuanyuan 1; Ji, Rong 2; Gao, Bin 3; Wu, Jichun 1
通讯作者	Sun, Yuanyuan ; Wu, Jichun
来源期刊	JOURNAL OF CONTAMINANT HYDROLOGY
ISSN	0169-7722
EISSN	1873-6009
出版年	2019
卷号	225
英文摘要	Effects of soil organic matter and mineral contents, and solution ionic strength on the transport of perfluorooctanoic acid (PFOA) in different types of soils (i.e., desert soil, black soil, and red soil) were systematically investigated with a set of laboratory column experiments. The retention of PFOA in the soils under two solution ionic strengths conditions (1.0 mM and 10.0 mM CaCl2) followed an order of red soil > black soil > desert soil (expect red soil in 10 mM CaCl2). PFOA retention in the black soil (soil organic carbon content 2.57%) was higher than that in the desert soil (soil organic carbon content: 0.05%). In addition, PFOA also showed higher mobility in treated black soils with lower organic carbon contents. These results suggest that the hydrophobic interaction is a key mechanism governing PFOA retention and transport in soils. Besides, more PFOA retention in the red soil (zeta potential: 7.25 +/- 0.10 mV and 14.80 +/- 0.20 mV) than the desert soil (-15.70 +/- 0.10 mV and -9.11 +/- 0.10 mV) was observed, suggesting that electrostatic interaction may be another important mechanism for PFOA retention and transport in soils. Increasing ionic strength slightly increased the retention of PFOA in negatively charged desert and black soils, but significantly decreased the retention of PFOA in the positively charged red soil. Findings of this study point to the importance of soil physiochemical properties to the fate and transport of PFOA in natural soils.
英文关键词	Perfluorooctanoic acid (PFOA) Transport Natural soils Soil organic matter Mineral contents Ionic strength
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000480511700001
WOS关键词	PERFLUORINATED COMPOUNDS ; PERFLUOROALKYL SUBSTANCES ; ADSORPTION ; SORPTION ; SULFONATE ; BEHAVIOR ; FATE ; GROUNDWATER ; SAND ; CLAY
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
来源机构	南京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216898
作者单位	1.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Hydrosci Dept,Minist Educ,Key Lab Surficial Geoch, Nanjing 210023, Jiangsu, Peoples R China; 2.Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China; 3.Univ Florida, Dept Agr & Biol Engn, Gainesville, FL 32611 USA
推荐引用方式 GB/T 7714	Lyu, Xueyan,Liu, Xing,Sun, Yuanyuan,et al. Transport and retention of perfluorooctanoic acid (PFOA) in natural soils: Importance of soil organic matter and mineral contents, and solution ionic strength[J]. 南京大学,2019,225.
APA	Lyu, Xueyan,Liu, Xing,Sun, Yuanyuan,Ji, Rong,Gao, Bin,&Wu, Jichun.(2019).Transport and retention of perfluorooctanoic acid (PFOA) in natural soils: Importance of soil organic matter and mineral contents, and solution ionic strength.JOURNAL OF CONTAMINANT HYDROLOGY,225.
MLA	Lyu, Xueyan,et al."Transport and retention of perfluorooctanoic acid (PFOA) in natural soils: Importance of soil organic matter and mineral contents, and solution ionic strength".JOURNAL OF CONTAMINANT HYDROLOGY 225(2019).