干旱区生态环境知识资源中心(Arid): Radon attenuation handbook for uranium mill tailings cover design

Arid

DOI	10.2172/6883619
报告编号	NUREG/CR-3533; PNL-4878; RAE-18-5
来源ID	OSTI_ID: 6883619
	Radon attenuation handbook for uranium mill tailings cover design
	Rogers, V.C.; Nielson, K.K.; Kalkwarf, D.R.
英文摘要	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.
出版年	1984
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	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
URL	http://www.osti.gov/scitech/servlets/purl/6883619
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/263585
推荐引用方式 GB/T 7714	Rogers, V.C.,Nielson, K.K.,Kalkwarf, D.R.. Radon attenuation handbook for uranium mill tailings cover design,1984.