Infiltration characteristics of non-aqueous phase liquids in undisturbed loessal soil cores

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	Infiltration characteristics of non-aqueous phase liquids in undisturbed loessal soil cores
	Wang, YQ (Wang Yunqiang)1,2 ; Shag, MA (Shag Ming'an)1
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
	2009
卷号	21 期号:10 页码:1424-1431
关键词	crude oil diesel oil soil compaction soil core sample size the Loess Plateau of China
通讯作者	Shag, MA
英文摘要	The widespread contamination of soils and aquifers by non-aqueous phase liquids (NAPL), such as crude oil, poses serious environmental and health hazards globally. Understanding the infiltration characteristics of NAPL in soil is crucial in mitigating or remediating soil contamination. The infiltration characteristics of crude and diesel oils into undisturbed loessal soil cores, collected in polymethyl methacrylate cylindrical columns, were investigated under a constant fluid head (3 cm) of either crude oil or diesel oil. The infiltration rate of both crude and diesel oils decreased exponentially as wetting depth increased with time. Soil core size and bulk density both had significant effects on NAPL infiltration through the undisturbed soil cores; a smaller core size or a greater bulk density could reduce oil penetration to depth. Compacting soil in areas susceptible to oil spills may be an effective stratage to reduce contamination. The infiltration of NAPL into soil cores was spatially anisotropic and heterogeneous, thus recording the data at four points on the soil core is a good stratage to improve the accuracy of experimental results. Our results revealed that crude and diesel oils, rather than their components, have a practical value for remediation of contaminated loessal soils.
收录类别	SCI
语种	英语
公开日期	2012-06-14
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/4835]
专题	水土保持研究所_水保所知识产出(1956-2013)
推荐引用方式 GB/T 7714	Wang, YQ ,Shag, MA . Infiltration characteristics of non-aqueous phase liquids in undisturbed loessal soil cores[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2009,21(10):1424-1431.
APA	Wang, YQ ,&Shag, MA .(2009).Infiltration characteristics of non-aqueous phase liquids in undisturbed loessal soil cores.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,21(10),1424-1431.
MLA	Wang, YQ ,et al."Infiltration characteristics of non-aqueous phase liquids in undisturbed loessal soil cores".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 21.10(2009):1424-1431.