SENSITIVITY ANALYSIS FOR I-129 WASTES: EFFECT OF HYDRAULIC CONDUCTIVITY

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Solid low-level radioactive wastes at the Savannah River Site (SRS) are disposed in trenches. In order to determine the permissible radioactive inventory limits for such disposal facilities, it is required to assess the behavior of radioactive waste material over long periods of time. The sensitivity of flow and I-129 (and similar radionuclides) transport in groundwater in the vadose zone to the hydraulic conductivities of the vadose zone subregions and the low-level waste is identified and quantified. A trench configuration and simulation model have been developed to analyze the flow and transport of the radionuclide in the vadose zone as it ... continued below

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Ades, M & Leonard Collard, L January 12, 2007.

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Solid low-level radioactive wastes at the Savannah River Site (SRS) are disposed in trenches. In order to determine the permissible radioactive inventory limits for such disposal facilities, it is required to assess the behavior of radioactive waste material over long periods of time. The sensitivity of flow and I-129 (and similar radionuclides) transport in groundwater in the vadose zone to the hydraulic conductivities of the vadose zone subregions and the low-level waste is identified and quantified. A trench configuration and simulation model have been developed to analyze the flow and transport of the radionuclide in the vadose zone as it migrates to the groundwater table. The analysis identifies and quantifies the major dependencies of the flow and radionuclide fractional flux on the subregion hydraulic conductivities. Analysis results indicate the importance of the hydraulic conductivity assigned to the materials modeled, thereby providing the modeler and decision makers with valuable insights on the potential impact of the hydraulic conductivity on flow and radionuclide transport.

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  • SCS SPRING SIMULATION MULTICONFERENCE

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  • Report No.: WSRC-STI-2007-00017
  • Grant Number: DE-AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 897870
  • Archival Resource Key: ark:/67531/metadc888859

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  • January 12, 2007

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  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 2, 2016, 1:10 p.m.

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Ades, M & Leonard Collard, L. SENSITIVITY ANALYSIS FOR I-129 WASTES: EFFECT OF HYDRAULIC CONDUCTIVITY, article, January 12, 2007; [Aiken, South Carolina]. (digital.library.unt.edu/ark:/67531/metadc888859/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.