Sorption (Kd) measurements in support of dose assessments for Zion Nuclear Station Decommissioning

doi:10.2172/1160008

GSTDTAP > 地球科学

DOI	10.2172/1160008
报告编号	BNL--105981-2012-IR
来源ID	OSTI ID: 1160008
	Sorption (Kd) measurements in support of dose assessments for Zion Nuclear Station Decommissioning
	Yim S. P.; Sullivan T.; Milian, L.
	2012-12-12
出版年	2012
语种	英语
国家	美国
领域	地球科学
英文摘要	The Zion Nuclear Power Station is being decommissioned. ZionSolutions proposes to leave much of the below grade structures in place and to fill them with âcleanâ concrete demolition debris from the above grade parts of the facility. This study, commissioned by ZionSolutions and conducted by the Brookhaven National Laboratory (BNL) was performed to provide site-specific data for performance assessment calculations to support the request to terminate the NRC license and allow unrestricted use of the facility. Specifically, this study measured the distribution coefficient for five radionuclides of concern using site-specific soils and groundwater. The distributions coefficient is a measure of the amount of the radionuclide that will remain sorbed to the soil or concrete that is present relative to the amount that will remain in solution. A high distribution coefficient indicates most of the radionuclide will remain on the solid material and will not be available for transport by the groundwater. The radionuclides of concern are Fe-55, Co-60, Ni-63, Sr-90, and Cs-137. Tests were performed following ASTM C1733-10, Standard Test Methods for Distribution Coefficients of Inorganic Species by the Batch Method. Sr-85 was used in the testing as an analogue for Sr-90 because it behaves similarly with respect to sorption and has a gamma emission that is easier to detect than the beta emission from Sr-90. Site-specific soils included disturbed sand (sand removed during construction and used as backfill), native sand, silt/clay and silt. In addition, concrete cores from the Unit-1 Containment Building and the Crib House were broken into particles less than 2 mm in size and tested to obtain distribution coefficients for the five nuclides.
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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/5896
专题	地球科学
推荐引用方式 GB/T 7714	Yim S. P.,Sullivan T.,Milian, L.. Sorption (Kd) measurements in support of dose assessments for Zion Nuclear Station Decommissioning,2012.