Solid State Characterizations of Long-Term Leached Cast Stone Monoliths

doi:10.2172/1328842

GSTDTAP > 地球科学

DOI	10.2172/1328842
报告编号	PNNL--25578 Rev.0
来源ID	OSTI ID: 1328842
	Solid State Characterizations of Long-Term Leached Cast Stone Monoliths
	Asmussen, Robert M.; Pearce, Carolyn I.; Parker, Kent E.; Miller, Brian W.; Lee, Brady D.; Buck, Edgar C.; Washton, Nancy M.; Bowden, Mark E.; Lawter, Amanda R.; McElroy, Erin M.; Serne, R. Jeffrey
	2016-09-30
出版年	2016
页数	64
语种	英语
国家	美国
领域	地球科学
英文摘要	This report describes the results from the solid phase characterization of six Cast Stone monoliths from the extended leach tests recently reported on (Serne et al. 2016),that were selected for characterization using multiple state-of-the-art approaches. The Cast Stone samples investigated were leached for > 590 d in the EPA Method 1315 test then archived for > 390 d in their final leachate. After reporting the long term leach behavior of the monoliths (containing radioactive ⁹⁹Tc and stable ¹²⁷I spikes and for original Westsik et al. 2013 fabricated monoliths, ²³⁸U), it was suggested that physical changes to the waste forms and a depleting inventory of contaminants of potential concern may mean that effective diffusivity calculations past 63 d should not be used to accurately represent long-term waste form behavior. These novel investigations, in both length of leaching time and application of solid state techniques, provide an initial arsenal of techniques which can be utilized to perform such Cast Stone solid phase characterization work, which in turn can support upcoming performance assessment maintenance. The work was performed at Pacific Northwest National Laboratory (PNNL) for Washington River Protection Solutions (WRPS) to characterize several properties of the long- term leached Cast Stone monolith samples.
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来源平台	US Department of Energy (DOE)
引用统计
文献类型	科技报告
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/7374
专题	地球科学
推荐引用方式 GB/T 7714	Asmussen, Robert M.,Pearce, Carolyn I.,Parker, Kent E.,et al. Solid State Characterizations of Long-Term Leached Cast Stone Monoliths,2016.