| DOI: | 10.2172/985586
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| 报告号: | PNNL-19524
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| 报告题名: | Hanford 100-N Area In Situ Apatite and Phosphate Emplacement by Groundwater and Jet Injection: Geochemical and Physical Core Analysis |
| 作者: | Szecsody, James E.; Vermeul, Vincent R.; Fruchter, Jonathan S.; Williams, Mark D.; Rockhold, Mark L.; Qafoku, Nikolla; Phillips, Jerry L.
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| 出版年: | 2010
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| 发表日期: | 2010-07-01
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| 国家: | 美国
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| 语种: | 英语
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| 英文关键词: | strontium-90
; groundwater remediation
; apatite
; Environmental Molecular Sciences Laboratory
|
| 中文主题词: | 沉积物
; 磷酸盐
; 钠
|
| 主题词: | SEDIMENTS
; PHOSPHATE
; SODIUM
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| 英文摘要: | The purpose of this study is to evaluate emplacement of phosphate into subsurface sediments in the Hanford Site 100-N Area by two different technologies: groundwater injection of a Ca-citrate-PO4 solution and water-jet injection of sodium phosphate and/or fish-bone apatite. In situ emplacement of phosphate and apatite adsorbs, then incorporates Sr-90 into the apatite structure by substitution for calcium. Overall, both technologies (groundwater injection of Ca-citrate-PO4) and water-jet injection of sodium phosphate/fish-bone apatite) delivered sufficient phosphate to subsurÂŹface sediments in the 100-N Area. Over years to decades, additional Sr-90 will incorporate into the apatite precipitate. Therefore, high pressure water jetting is a viable technology to emplace phosphate or apatite in shallow subsurface sediments difficult to emplace by Ca-citrate-PO4 groundwater injections, but further analysis is needed to quantify the relevant areal extent of phosphate deposition (in the 5- to 15-ft distance from injection points) and cause of the high deposition in finer grained sediments. |
| URL: | http://www.osti.gov/scitech/servlets/purl/985586
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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/39989
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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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| 985586.pdf（3702KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Szecsody, James E.,Vermeul, Vincent R.,Fruchter, Jonathan S.,et al. Hanford 100-N Area In Situ Apatite and Phosphate Emplacement by Groundwater and Jet Injection: Geochemical and Physical Core Analysis. 2010-01-01.
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