Colloid facilitated transport in fractured rocks: parameter estimation and comparison with experimental data

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Description

Colloid-facilitated migration of plutonium in fractured rock has been implicated in both field and laboratory studies. Other reactive radionuclides may also experience enhanced mobility due to groundwater colloids. Model prediction of this process is necessary for assessment of contaminant boundaries in systems for which radionuclides are already in the groundwater and for performance assessment of potential repositories for radioactive waste. Therefore, a reactive transport model is developed and parameterized using results from controlled laboratory fracture column experiments. Silica, montmorillonite and clinoptilolite colloids are used in the experiments along with plutonium and Tritium. The goal of the numerical model is to ... continued below

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7 pages

Creation Information

Viswanthan, H.S.; Wolfsberg, A.V.; Reimus, P.W.; Ware, D. & Lu, G. January 10, 2003.

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Description

Colloid-facilitated migration of plutonium in fractured rock has been implicated in both field and laboratory studies. Other reactive radionuclides may also experience enhanced mobility due to groundwater colloids. Model prediction of this process is necessary for assessment of contaminant boundaries in systems for which radionuclides are already in the groundwater and for performance assessment of potential repositories for radioactive waste. Therefore, a reactive transport model is developed and parameterized using results from controlled laboratory fracture column experiments. Silica, montmorillonite and clinoptilolite colloids are used in the experiments along with plutonium and Tritium. The goal of the numerical model is to identify and parameterize the physical and chemical processes that affect the colloid-facilitated transport of plutonium in the fractures. The parameters used in this model are similar in form to those that might be used in a field-scale transport model.

Physical Description

7 pages

Notes

INIS; OSTI as DE00810871

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  • 2003 International High-Level Radioactive Waste Management Meeting, Las Vegas, NV (US), 03/30/2003--04/02/2003

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  • Report No.: LBNL--52268
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 810871
  • Archival Resource Key: ark:/67531/metadc737174

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 10, 2003

Added to The UNT Digital Library

  • Oct. 18, 2015, 6:40 p.m.

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  • April 4, 2016, 4:03 p.m.

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Viswanthan, H.S.; Wolfsberg, A.V.; Reimus, P.W.; Ware, D. & Lu, G. Colloid facilitated transport in fractured rocks: parameter estimation and comparison with experimental data, article, January 10, 2003; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc737174/: accessed December 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.