Modeling the transport and fate of radioactive noble gases in very dry desert alluvium: Realistic scenarios
US DOE Order 5820.2A (1988) requires that a performance assessment of all new and existing low-level radioactive waste management sites be made. An integral part of every performance assessment is the mathematical modeling of the transport and fate of noble gas radionuclides in the gas phase. Current in depth site characterization of the high desert alluvium in Area 5 of the Nevada Test Site (NTS) is showing that the alluvium is very very dry all the way to the water table (240 meters below land surface). The potential for radioactive noble gas (e.g. Rn-220 and Rn-222) transport to the atmosphere from shallow land burial of Thorium and Uranium waste is very high. Objectives of this modeling effort include: Construct a physics based sits specific noble gas transport model; Include induced advection due to barometric pressure changes at the atmospheric boundary layer (thin) - dry desert alluvium interface; User selected option for use of NOAA barometric pressure or a ``home brewed`` barometric pressure wave made up of up to 15 sinusoids and cosinusoids; Use the model to help make engineering decisions on the design of the burial pits and associated closure caps.
- Research Organization:
- Reynolds Electrical and Engineering Co., Inc., Las Vegas, NV (United States). Environmental Restoration and Technology Development Dept.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC08-89NV10630
- OSTI ID:
- 10114038
- Report Number(s):
- CONF-921137-7; ON: DE93004789
- Resource Relation:
- Conference: 14. annual DOE low-level radioactive waste management conference,Phoenix, AZ (United States),18-20 Nov 1992; Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
RADIONUCLIDE MIGRATION
MATHEMATICAL MODELS
ALLUVIAL DEPOSITS
DESERTS
RARE GASES
RADIOACTIVE MATERIALS
NEVADA TEST SITE
RADON 222
RADON 220
AIR
NUMERICAL SOLUTION
RADIOACTIVE WASTE DISPOSAL
540230
052002
RADIOACTIVE MATERIALS MONITORING AND TRANSPORT
WASTE DISPOSAL AND STORAGE