| DOI: | 10.2172/1051102
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| 报告号: | DOE/ER64638-3
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| 报告题名: | Colloid Facilitated Transport of Radioactive Cations in the Vadose Zone: Field Experiments Oak Ridge |
| 作者: | James E. Saiers
|
| 出版年: | 2012
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| 发表日期: | 2012-09-20
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| 国家: | 美国
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| 语种: | 英语
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| 中文主题词: | 土壤
; 有机物
; 下渗
; 污染物
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| 主题词: | SOILS
; ORGANIC MATTER
; INFILTRATION
; CONTAMINANTS
|
| 英文摘要: | The overarching goal of this study was to improve understanding of colloid-facilitated transport of radioactive cations through unsaturated soils and sediments. We conducted a suite of laboratory experiments and field experiments on the vadose-zone transport of colloids, organic matter, and associated contaminants of interest to the U.S. Department of Energy (DOE). The laboratory and field experiments, together with transport modeling, were designed to accomplish the following detailed objectives: 1. Evaluation of the relative importance of inorganic colloids and organic matter to the facilitation of radioactive cation transport in the vadose zone; 2. Assessment of the role of adsorption and desorption kinetics in the facilitated transport of radioactive cations in the vadose zone; 3. Examination of the effects of rainfall and infiltration dynamics and in the facilitated transport of radioactive cations through the vadose zone; 4. Exploration of the role of soil heterogeneity and preferential flow paths (e.g., macropores) on the facilitated transport of radioactive cations in the vadose zone; 5. Development of a mathematical model of facilitated transport of contaminants in the vadose zone that accurately incorporates pore-scale and column-scale processes with the practicality of predicting transport with readily available parameters. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1051102
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| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/40528
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| File Name/ File Size |
Content Type |
Version |
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| 1051102.pdf（427KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
James E. Saiers. Colloid Facilitated Transport of Radioactive Cations in the Vadose Zone: Field Experiments Oak Ridge. 2012-01-01.
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