| DOI: | 10.2172/1223774
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| 报告号: | LA-UR--15-28116
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| 报告题名: | Simultaneous Thermal Analysis of WIPP and LANL Waste Drum Samples: A Preliminary Report |
| 作者: | Wayne, David M.
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| 出版年: | 2015
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| 发表日期: | 2015-10-19
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| 总页数: | 34
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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: | thermogravimetric analysis, TGA, differential scanning calorimetry, DSC, mass spectrometry, offgas, exothermic, combustion, nitrate salts
|
| 中文主题词: | 硝酸盐
; PH
; PH值
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| 主题词: | NITRATE
; PH
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| 英文摘要: | On Friday, February 14, 2014, an incident in P7R7 of the WIPP underground repository released radioactive material into the environment. The direct cause of the event was a breached transuranic (TRU) waste container, subsequently identified as Drum 68660. Photographic and other evidence indicates that the breach of 68660 was caused by an exothermic event. Subsequent investigations (Britt, 2015; Clark and Funk, 2015; Wilson et al., 2015; Clark, 2015) indicate that the combination of nitrate salts, pH neutralizing chemicals, and organic-based adsorbent represented a potentially energetic mixture. The materials inside the breached steel drum consisted of remediated, 30- to 40-year old, Pu processing wastes from LANL. The contents were processed and repackaged in 2014. Processing activities at LANL included: 1) neutralization of acidic liquid contents, 2) sorption of the neutralized liquid, and 3) mixing of acidic nitrate salts with an absorber to meet waste acceptance criteria. The contents of 68660 and its sibling, 68685, were derived from the same parent drum, S855793. Drum S855793 originally contained ten plastic bags of acidic nitrate salts, and four bags of mixed nitrate and oxalate salts generated in 1985 by Pu recovery operations. These salts were predominantly oxalic acid, hydrated nitrate salts of Mg, Ca, and Fe, anhydrous Na(NO3), and minor amounts of anhydrous and hydrous nitrate salts of Pb, Al, K, Cr, and Ni. Other major components include sorbed water, nitric acid, dissolved nitrates, an absorbent (Swheat ScoopÂŽ) and a neutralizer (KolorSafeÂŽ). The contents of 68660 are described in greater detail in Appendix E of Wilson et al. (2015) |
| URL: | http://www.osti.gov/scitech/servlets/purl/1223774
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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/41733
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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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| 1223774.pdf（6173KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Wayne, David M.. Simultaneous Thermal Analysis of WIPP and LANL Waste Drum Samples: A Preliminary Report. 2015-01-01.
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