Radon attenuation handbook for uranium mill tailings cover design

Technical Report · Sun Apr 01 00:00:00 EST 1984

DOI:https://doi.org/10.2172/6883619· OSTI ID:6883619

Rogers, V C; Nielson, K K; Kalkwarf, D R

This handbook has been prepared to facilitate the design of earthen covers to control radon emission from uranium mill tailings. Radon emissions from bare and covered uranium mill tailings can be estimated from equations based on diffusion theory. Basic equations are presented for calculating surface radon fluxes from covered tailings, or alternately, the cover thicknesses required to satisfy a given radon flux criterion. Also described is a computer code, RAECOM, for calculating cover thicknesses and surface fluxes. Methods are also described for measuring diffusion coefficients for radon, or for estimating them from empirical correlations. Since long-term soil moisture content is a critical parameter in determining the value of the diffusion coefficient, methods are given for estimating the long-term moisture contents of soils. The effects of cover defects or advection are also discussed and guidelines are given for determining if they are significant. For most practical cases, advection and cover defect effects on radon flux can be neglected. Several examples are given to demonstrate cover design calculations, and an extensive list of references is included. 63 references, 18 figures, 6 tables.

• Research Organization: Rogers and Associates Engineering Corp., Salt Lake City, UT (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6883619
• Report Number(s): NUREG/CR-3533; PNL-4878; RAE-18-5; ON: DE84011549
• Resource Relation: Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
COVERINGS
DESIGN
FEED MATERIALS PLANTS
MILL TAILINGS
RADIOACTIVE WASTE DISPOSAL
RADON
DIFFUSION
MANUALS
MOISTURE
SOILS
THICKNESS
DIMENSIONS
DOCUMENT TYPES
ELEMENTS
FLUIDS
GASES
INDUSTRIAL PLANTS
MANAGEMENT
NONMETALS
NUCLEAR FACILITIES
RARE GASES
SOLID WASTES
TAILINGS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
052002* - Nuclear Fuels- Waste Disposal & Storage