Adsorption of Pb and Cd on the natural surface coatings (NSCs) in the presence of organochlorine pesticides: A preliminary investigation

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	Adsorption of Pb and Cd on the natural surface coatings (NSCs) in the presence of organochlorine pesticides: A preliminary investigation
	Guo, SH; Li, Y; Liu, L; Hua, XY; Li, Y, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
刊名	JOURNAL OF ENVIRONMENTAL MANAGEMENT
	2008
卷号	88 期号:1 页码:147-153
关键词	Adsorption Lead And Cadmium Natural Surface Coatings Organochlorine Pesticides
ISSN号	0301-4797
英文摘要	Adsorption of Ph and Cd in the presence and absence of organochlorine pesticides (OCPs) on natural surface coatings (NSCs), which were collected in the Nanhu Lake in Changchun, China, was measured in order to investigate the effect of the OCPs on the adsorption of heavy metals on the NSCs. Adsorption of Pb/Cd was carried out under controlled laboratory conditions (mineral salt solution with defined species, ionic strength 0.05 mol/l, 25 degrees C and pH 6.0) with initial Pb and Cd concentrations ranging from 0.2 to 2.5 mol/l. The classical Langmuir adsorption isotherm was applied to estimate the equilibrium coefficients of the adsorption of Pb and Cd on the NSCs. Adsorption interference between Pb/Cd and the OCPs on the NSCs indicated that the adsorption of Pb/Cd on the NSCs was influenced by the OCPs, and competitive adsorption between Ph and the OCPs was observed while adsorption of Cd was enhanced by addition of the OCPs. Adsorption data fit the Langmuir isotherm well for the NSCs treated with the OCPs at different equilibrium concentrations. The results showed that the amount of adsorbed Ph decreased by more than 40% while the amount of adsorbed Cd increased by over 60% with an increase in the initial concentrations of the OCPs ranging from 0 to 5.0 mu g/l and that adsorption of Pb/Cd on the NSCs was strongly affected by the OCPs. This preliminary study highlights the importance of the OCPs on the NSCs in controlling the transport, fate, biogeochemistry, bioavailability and toxicity of trace metals in aquatic environments. (C) 2007 Elsevier Ltd. All rights reserved.
学科主题	Environmental Sciences ; Environmental Studies
语种	英语
WOS记录号	WOS:000256206500014
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54461]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Li, Y, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Guo, SH,Li, Y,Liu, L,et al. Adsorption of Pb and Cd on the natural surface coatings (NSCs) in the presence of organochlorine pesticides: A preliminary investigation[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2008,88(1):147-153.
APA	Guo, SH,Li, Y,Liu, L,Hua, XY,&Li, Y, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China.(2008).Adsorption of Pb and Cd on the natural surface coatings (NSCs) in the presence of organochlorine pesticides: A preliminary investigation.JOURNAL OF ENVIRONMENTAL MANAGEMENT,88(1),147-153.
MLA	Guo, SH,et al."Adsorption of Pb and Cd on the natural surface coatings (NSCs) in the presence of organochlorine pesticides: A preliminary investigation".JOURNAL OF ENVIRONMENTAL MANAGEMENT 88.1(2008):147-153.