Development and feasibility of a waste package coupled reactive transport model (AREST-CT)

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Description

Most models that analyze the waste package and engineered barrier system (near-field) of an underground geologic repository assume constant boundary conditions at the waste form surface and constant chemical properties of the groundwater. These models are useful for preliminary modeling, iterative modeling to estimate uncertainties, and as a source for a total systems analysis. However, the chemical behavior of the system is a very important factor in the containment and release of radionuclides, and one needs to understand the underlying processes involved. Therefore, the authors are developing a model to couple the calculation of the chemical properties with the reactive ... continued below

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9 p.

Creation Information

Engel, D.W.; McGrail, B.P.; Fort, J.A. & Roberts, J.S. May 1, 1994.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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  • Pacific Northwest Laboratory
    Publisher Info: Pacific Northwest Lab., Richland, WA (United States)
    Place of Publication: Richland, Washington

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Description

Most models that analyze the waste package and engineered barrier system (near-field) of an underground geologic repository assume constant boundary conditions at the waste form surface and constant chemical properties of the groundwater. These models are useful for preliminary modeling, iterative modeling to estimate uncertainties, and as a source for a total systems analysis. However, the chemical behavior of the system is a very important factor in the containment and release of radionuclides, and one needs to understand the underlying processes involved. Therefore, the authors are developing a model to couple the calculation of the chemical properties with the reactive transport which can be used to assess the near-field. This report describes the models being implemented and presents some simple analyses demonstrating the feasibility of the chemical and coupled transport models.

Physical Description

9 p.

Notes

INIS; OSTI as DE95007260

Source

  • International high-level radioactive waste management conference, Las Vegas, NV (United States), 22-26 May 1994

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Identifier

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  • Other: DE95007260
  • Report No.: PNL-SA--23965
  • Report No.: CONF-940553--83
  • Grant Number: AC06-76RL01830
  • DOI: 10.2172/61009 | External Link
  • Office of Scientific & Technical Information Report Number: 61009
  • Archival Resource Key: ark:/67531/metadc697003

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Creation Date

  • May 1, 1994

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  • Aug. 14, 2015, 8:43 a.m.

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  • April 7, 2016, 2:33 p.m.

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Engel, D.W.; McGrail, B.P.; Fort, J.A. & Roberts, J.S. Development and feasibility of a waste package coupled reactive transport model (AREST-CT), report, May 1, 1994; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc697003/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.