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Title: Preliminary Environmental Flow and Transport Modeling at the INEEL

Abstract

The Idaho National Engineering and Environmental Laboratory (INEEL) is located in southeastern Idaho in the USA. The primary mission since the laboratory was founded in 1949 has been nuclear reactor research. Fifty-two reactors have been built and operated on the INEEL. Other principal activities at the laboratory have been reprocessing of spent nuclear fuel. Low-level radioactive waste generated on site and mixed and transuranic waste from the Rocky Flats plutonium processing facility in Colorado has been disposed on the INEEL at the Radioactive Waste Management Complex (RWMC). Waste disposal at the RWMC began in 1952 with shallow land burial in pits and trenches. The INEEL was placed on the National Priorities List (NPL) in 1989. The resulting environmental assessments of the potential negative health impacts of disposed waste at the RWMC have required the use of predictive numerical simulations. A petroleum reservoir simulator called TETRAD was modified for use in simulating environmental flow and transport. Use of this code has allowed the complex subsurface stratigraphy to be simulated, including an extensive region of unsaturated fractured basalt. Dual continual simulation approaches have been used to assess combined aqueous- and gaseous-phase transport of volatile organic compounds as well as dissolved-phase transport ofmore » radionuclides. Calibration of the simulator to available monitoring data has increased the confidence in the simulator results to the point where the model sensitivities are being used to direct additional characterization efforts. Eventually, as the model calibration improves and confidence in the model predictions increases, the simulator will be used as a decision tool for selecting remedial alternatives for the wastes buried at the RWMC. An overview of the overall program including a summary of laboratory actinide migration studies will be presented.« less

Authors:
; ;
Publication Date:
Research Org.:
Idaho National Laboratory (INL)
Sponsoring Org.:
USDOE
OSTI Identifier:
911389
Report Number(s):
INEEL/CON-99-00110
TRN: US0704548
DOE Contract Number:  
DE-AC07-99ID-13727
Resource Type:
Conference
Resource Relation:
Conference: 7th International Conference on Radioactive Waste Management and Environmental Remediation (ICEM '99,Nagoya, Japan,09/26/1999,09/30/1999
Country of Publication:
United States
Language:
English
Subject:
54 - ENVIRONMENTAL SCIENCES, 99 - GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; ACTINIDES; BASALT; CALIBRATION; GROUND DISPOSAL; LOW-LEVEL RADIOACTIVE WASTES; NUCLEAR FUELS; ORGANIC COMPOUNDS; PETROLEUM; PLUTONIUM; RADIOACTIVE WASTE MANAGEMENT; RADIOISOTOPES; REACTORS; SIMULATORS; STRATIGRAPHY; TRANSPORT; WASTE DISPOSAL; WASTES; SPENT FUELS; disposed water; National Priorities List (NPL); nuclear reactor research; petroleum reservoir simulator; predictive numerical simulations; Radioactive Waste Management Complex (RWMC); shallow land burial; spent nuclear fuel; subsurface stratigraphy; volatile organic compounds

Citation Formats

Magnuson, Swen O, Mccarthy, James Michael, and Navratil, James Dale. Preliminary Environmental Flow and Transport Modeling at the INEEL. United States: N. p., 1999. Web.
Magnuson, Swen O, Mccarthy, James Michael, & Navratil, James Dale. Preliminary Environmental Flow and Transport Modeling at the INEEL. United States.
Magnuson, Swen O, Mccarthy, James Michael, and Navratil, James Dale. Wed . "Preliminary Environmental Flow and Transport Modeling at the INEEL". United States. https://www.osti.gov/servlets/purl/911389.
@article{osti_911389,
title = {Preliminary Environmental Flow and Transport Modeling at the INEEL},
author = {Magnuson, Swen O and Mccarthy, James Michael and Navratil, James Dale},
abstractNote = {The Idaho National Engineering and Environmental Laboratory (INEEL) is located in southeastern Idaho in the USA. The primary mission since the laboratory was founded in 1949 has been nuclear reactor research. Fifty-two reactors have been built and operated on the INEEL. Other principal activities at the laboratory have been reprocessing of spent nuclear fuel. Low-level radioactive waste generated on site and mixed and transuranic waste from the Rocky Flats plutonium processing facility in Colorado has been disposed on the INEEL at the Radioactive Waste Management Complex (RWMC). Waste disposal at the RWMC began in 1952 with shallow land burial in pits and trenches. The INEEL was placed on the National Priorities List (NPL) in 1989. The resulting environmental assessments of the potential negative health impacts of disposed waste at the RWMC have required the use of predictive numerical simulations. A petroleum reservoir simulator called TETRAD was modified for use in simulating environmental flow and transport. Use of this code has allowed the complex subsurface stratigraphy to be simulated, including an extensive region of unsaturated fractured basalt. Dual continual simulation approaches have been used to assess combined aqueous- and gaseous-phase transport of volatile organic compounds as well as dissolved-phase transport of radionuclides. Calibration of the simulator to available monitoring data has increased the confidence in the simulator results to the point where the model sensitivities are being used to direct additional characterization efforts. Eventually, as the model calibration improves and confidence in the model predictions increases, the simulator will be used as a decision tool for selecting remedial alternatives for the wastes buried at the RWMC. An overview of the overall program including a summary of laboratory actinide migration studies will be presented.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {9}
}

Conference:
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