Kinetic modeling of antimony(V) adsorption-desorption and transport in soils
Zhang, Hua1; Li, Lulu2; Zhou, Shiwei1; Zhang, H (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Processes & Ecol Re, Yantai, Shandong, Peoples R China. hzhang@yic.ac.cn
发表期刊CHEMOSPHERE
ISSN0045-6535
2014-09-01
卷号111页码:434-440
关键词Antimony Soil Adsorption-desorption Transport Mobility
DOI10.1016/j.chemosphere.2014.04.054
产权排序[Zhang, Hua; Zhou, Shiwei] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Processes & Ecol Re, Yantai, Shandong, Peoples R China; [Li, Lulu] Qingdao Univ, Coll Chem & Environm Engn, Qingdao 266071, Shandong, Peoples R China
作者部门中科院海岸带环境过程与生态修复重点实验室
英文摘要Antimonate [Sb(V)] adsorption-desorption and transport in an acidic red soil (Yingtan) and a calcareous soil (Huanjiang) was investigated using kinetic batch and miscible displacement experiments. Different formulations of a multi-reaction model (MRM) were evaluated for their capabilities of describing the retention and transport mechanisms of Sb(V) in soils. The experimental results showed that adsorption of Sb(V) by two soils was kinetically controlled and largely irreversible. The Sb(V) adsorption capacity and kinetic rate of the acidic red soil was much higher than that of the calcareous soil. The asymmetrical breakthrough curves indicated the strong dominance of non-equilibrium retention of Sb(V). A four step sequential extraction procedure provided evidence that majority of applied Sb(V) was irreversibly retained. A formulation of MRM with two kinetic sorption sites (reversible and irreversible) successfully described Sb(V) adsorption-desorption data. The use of kinetic batch rate coefficients for predictions of breakthrough curves (BTCs) underestimated Sb(V) retention and overestimated its mobility. In an inverse mode with optimized rate coefficients, the MRM formulation was capable of simulating Sb(V) transport in soil columns. (C) 2014 Elsevier Ltd. All rights reserved.; Antimonate [Sb(V)] adsorption-desorption and transport in an acidic red soil (Yingtan) and a calcareous soil (Huanjiang) was investigated using kinetic batch and miscible displacement experiments. Different formulations of a multi-reaction model (MRM) were evaluated for their capabilities of describing the retention and transport mechanisms of Sb(V) in soils. The experimental results showed that adsorption of Sb(V) by two soils was kinetically controlled and largely irreversible. The Sb(V) adsorption capacity and kinetic rate of the acidic red soil was much higher than that of the calcareous soil. The asymmetrical breakthrough curves indicated the strong dominance of non-equilibrium retention of Sb(V). A four step sequential extraction procedure provided evidence that majority of applied Sb(V) was irreversibly retained. A formulation of MRM with two kinetic sorption sites (reversible and irreversible) successfully described Sb(V) adsorption-desorption data. The use of kinetic batch rate coefficients for predictions of breakthrough curves (BTCs) underestimated Sb(V) retention and overestimated its mobility. In an inverse mode with optimized rate coefficients, the MRM formulation was capable of simulating Sb(V) transport in soil columns. (C) 2014 Elsevier Ltd. All rights reserved.
文章类型Article
资助机构Environmental Sciences & Ecology
收录类别SCI
语种英语
关键词[WOS]SORPTION BEHAVIOR ; CLAY-MINERALS ; IRON-OXIDE ; SPECIATION ; MOBILITY ; CHINA ; AVAILABILITY ; SEDIMENTS ; SB(III) ; SB(V)
研究领域[WOS]Environmental Sciences & Ecology
WOS记录号WOS:000339601600058
引用统计
被引频次:29[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/8714
专题中国科学院海岸带环境过程与生态修复重点实验室
通讯作者Zhang, H (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Processes & Ecol Re, Yantai, Shandong, Peoples R China. hzhang@yic.ac.cn
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Processes & Ecol Re, Yantai, Shandong, Peoples R China
2.Qingdao Univ, Coll Chem & Environm Engn, Qingdao 266071, Shandong, Peoples R China
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Zhang, Hua,Li, Lulu,Zhou, Shiwei,et al. Kinetic modeling of antimony(V) adsorption-desorption and transport in soils[J]. CHEMOSPHERE,2014,111:434-440.
APA Zhang, Hua,Li, Lulu,Zhou, Shiwei,&Zhang, H .(2014).Kinetic modeling of antimony(V) adsorption-desorption and transport in soils.CHEMOSPHERE,111,434-440.
MLA Zhang, Hua,et al."Kinetic modeling of antimony(V) adsorption-desorption and transport in soils".CHEMOSPHERE 111(2014):434-440.
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