Batch and column studies of adsorption of Li, Ni and Br by a reference sand for contaminant transport experiments

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Description

A processed quartz sand (Wedron 510), mined from the St. Peter sandstone, has been characterized by a variety of chemical and physical methods for use as a reference porous media in transport model validation experiments. Wedron 510 sand was used in an intermediate-scale experiment involving migration of Ni, Li and Br through a 6-m high x 3-m diameter caisson. Ni and Li adsorption/desorption, and Li/Ni site-competition experiments yielded information on the importance of the trace mineral phases to adsorption of Li and Ni by the sand. The presence of an iron hydroxide coating similar to goethite on the sand grains ... continued below

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200 p.

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Seigel, M. D.; Ward, D. B.; Bryan, C. R. & Boyle, C. September 1995.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

A processed quartz sand (Wedron 510), mined from the St. Peter sandstone, has been characterized by a variety of chemical and physical methods for use as a reference porous media in transport model validation experiments. Wedron 510 sand was used in an intermediate-scale experiment involving migration of Ni, Li and Br through a 6-m high x 3-m diameter caisson. Ni and Li adsorption/desorption, and Li/Ni site-competition experiments yielded information on the importance of the trace mineral phases to adsorption of Li and Ni by the sand. The presence of an iron hydroxide coating similar to goethite on the sand grains is suggested by visual observation and leaching experiments. Kaolinite was identified by SEM and XRD as a significant trace mineral phase in the sand and occurs as small particles coating the sand grains. Quartz, the predominant constituent of the sand by weight, does not appear to contribute significantly to the adsorption properties of the sand. Qualitatively, the adsorption properties of the sand can be adequately modeled as a two-mineral system (goethite and kaolinite). The studies described in this report should provide a basis for understanding transport of Ni, Li and Br through porous media similar to the reference sand. Techniques were developed for obtaining parameter values for surface complexation and kinetic adsorption models for the sand and its mineral components. These constants can be used directly in coupled hydrogeochemical transport codes. The techniques should be useful for characterization of other natural materials and elements in high-level nuclear waste in support of coupled hydrogeochemical transport calculations for Yucca Mountain.

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200 p.

Notes

INIS; OSTI as DE96001139

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  • Other Information: PBD: Sep 1995

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  • Other: DE96001139
  • Report No.: SAND--95-0591
  • Grant Number: AC04-94AL85000;AC04-76DP00789
  • DOI: 10.2172/114552 | External Link
  • Office of Scientific & Technical Information Report Number: 114552
  • Archival Resource Key: ark:/67531/metadc623632

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  • September 1995

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  • June 16, 2015, 7:43 a.m.

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  • April 14, 2016, 9:35 p.m.

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Seigel, M. D.; Ward, D. B.; Bryan, C. R. & Boyle, C. Batch and column studies of adsorption of Li, Ni and Br by a reference sand for contaminant transport experiments, report, September 1995; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc623632/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.