Development of methods to evaluate uranium distribution coefficients in unsaturated media

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To date, batch sorption and dynamic column experiments have been performed for many elements as part of site characterization programs. These experiments were often conducted with samples having relatively high liquid/solid ratios (in some cases the solid volume was much smaller than the solution volume). The development of methods for measuring sorption parameters at low liquid/solid ratios was undertaken to attempt to judge whether or not results of saturated experiments are valid for use in performance assessments of sites located in unsaturated rocks. The amount of hydrologic saturation can affect the ionic strength, pH, and redox potential which can in ... continued below

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5 p.

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Sautman, M.T. & Simonson, S.A. December 31, 1993.

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

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Description

To date, batch sorption and dynamic column experiments have been performed for many elements as part of site characterization programs. These experiments were often conducted with samples having relatively high liquid/solid ratios (in some cases the solid volume was much smaller than the solution volume). The development of methods for measuring sorption parameters at low liquid/solid ratios was undertaken to attempt to judge whether or not results of saturated experiments are valid for use in performance assessments of sites located in unsaturated rocks. The amount of hydrologic saturation can affect the ionic strength, pH, and redox potential which can in turn affect sorption. In addition, the presence of the gas phase may affect the amount of wetting occurring on the solid`s surface. This paper describes experimental procedures which were developed to evaluate the sorption of uranium by silica sand at predetermined levels of unsaturation.

Physical Description

5 p.

Notes

INIS; OSTI as DE94004694

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  • 5. annual American Chemical Society (ACS) Industrial and Engineering Chemistry (I&EC) Division special symposium on emerging technologies for hazardous waste management, Atlanta, GA (United States), 27-29 Sep 1993

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  • Other: DE94004694
  • Report No.: SAND--93-7116C
  • Report No.: CONF-9309146--7
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 140476
  • Archival Resource Key: ark:/67531/metadc622923

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Office of Scientific & Technical Information Technical Reports

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  • December 31, 1993

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  • June 16, 2015, 7:43 a.m.

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  • April 13, 2016, 1:32 p.m.

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Sautman, M.T. & Simonson, S.A. Development of methods to evaluate uranium distribution coefficients in unsaturated media, article, December 31, 1993; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc622923/: accessed September 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.