干旱区生态环境知识资源中心(Arid): Deep borehole disposal of high-level radioactive waste.

Arid

DOI	10.2172/985495
报告编号	SAND2009-4401
来源ID	OSTI_ID: 985495
	Deep borehole disposal of high-level radioactive waste.
	Stein, Joshua S.; Freeze, Geoffrey A.; Brady, Patrick Vane; Swift, Peter N.; Rechard, Robert Paul; Arnold, Bill Walter; Kanney, Joseph F.; Bauer, Stephen J.
英文摘要	Preliminary evaluation of deep borehole disposal of high-level radioactive waste and spent nuclear fuel indicates the potential for excellent long-term safety performance at costs competitive with mined repositories. Significant fluid flow through basement rock is prevented, in part, by low permeabilities, poorly connected transport pathways, and overburden self-sealing. Deep fluids also resist vertical movement because they are density stratified. Thermal hydrologic calculations estimate the thermal pulse from emplaced waste to be small (less than 20 C at 10 meters from the borehole, for less than a few hundred years), and to result in maximum total vertical fluid movement of {approx}100 m. Reducing conditions will sharply limit solubilities of most dose-critical radionuclides at depth, and high ionic strengths of deep fluids will prevent colloidal transport. For the bounding analysis of this report, waste is envisioned to be emplaced as fuel assemblies stacked inside drill casing that are lowered, and emplaced using off-the-shelf oilfield and geothermal drilling techniques, into the lower 1-2 km portion of a vertical borehole {approx}45 cm in diameter and 3-5 km deep, followed by borehole sealing. Deep borehole disposal of radioactive waste in the United States would require modifications to the Nuclear Waste Policy Act and to applicable regulatory standards for long-term performance set by the US Environmental Protection Agency (40 CFR part 191) and US Nuclear Regulatory Commission (10 CFR part 60). The performance analysis described here is based on the assumption that long-term standards for deep borehole disposal would be identical in the key regards to those prescribed for existing repositories (40 CFR part 197 and 10 CFR part 63).
出版年	2009
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS ; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES ; 29 ENERGY PLANNING, POLICY AND ECONOMY ; BASEMENT ROCK ; BOREHOLES ; DRILLING ; EVALUATION ; FLUID FLOW ; FUEL ASSEMBLIES ; HIGH-LEVEL RADIOACTIVE WASTES ; MODIFICATIONS ; NUCLEAR FUELS ; NUCLEAR WASTE POLICY ACTS ; OVERBURDEN ; PERFORMANCE ; RADIOACTIVE WASTES ; RADIOISOTOPES ; SAFETY ; TRANSPORT ; US EPA ; WASTES Waste disposal in the ground. ; Radioactive waste disposal. ; Boreholes. ; High level radioactive waste disposal-Testing.
URL	http://www.osti.gov/scitech/servlets/purl/985495
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/269851
推荐引用方式 GB/T 7714	Stein, Joshua S.,Freeze, Geoffrey A.,Brady, Patrick Vane,et al. Deep borehole disposal of high-level radioactive waste.,2009.