Kinetic modeling of antimony(V) adsorption-desorption and transport in soils
文献类型：期刊论文
| 作者 | Zhang, Hua1 ; Li, Lulu2; Zhou, Shiwei1
|
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2014-09-01 |
| 卷号 | 111页码:434-440 |
| ISSN号 | 0045-6535 |
| 关键词 | Antimony Soil Adsorption-desorption Transport Mobility |
| 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 |
| 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 |
| 中文摘要 | 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. |
| 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. |
| 学科主题 | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | SORPTION BEHAVIOR ; CLAY-MINERALS ; IRON-OXIDE ; SPECIATION ; MOBILITY ; CHINA ; AVAILABILITY ; SEDIMENTS ; SB(III) ; SB(V) |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000339601600058 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/8714]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 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 |
| 推荐引用方式 GB/T 7714 | Zhang, Hua,Li, Lulu,Zhou, Shiwei. Kinetic modeling of antimony(V) adsorption-desorption and transport in soils[J]. CHEMOSPHERE,2014,111:434-440. |
| APA | Zhang, Hua,Li, Lulu,&Zhou, Shiwei.(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. |
入库方式： OAI收割
来源：烟台海岸带研究所
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