Fundamental Thermodynamics of Actinide-Bearing Mineral Waste Forms

Williamson, Mark A.

Argonne National Laboratory

关键词: Thermodynamic Properties;    12 Management Of Radioactive Wastes, And Non-Radioactive Wastes From Nuclear Facilities;    37 Inorganic, Organic, Physical And Analytical Chemistry;    Radioactive Wastes;    Yucca Mountain;   

DOI  :  10.2172/828571
RP-ID  :  EMSP-60118--2000
RP-ID  :  FG07-97ER45673
RP-ID  :  828571

美国|英语

来源: UNT Digital Library

【 摘 要 】

The landmark record of decision in January 2000 by the US Department of Energy stated that at least 17 tons of surplus weapons plutonium will be converted to a mineral waste material and disposed of in a geological repository similar to the proposed Yucca Mountain nuclear waste site in Nevada. The need for fundamental thermodynamic properties (e.g., entropy, enthalpy and free energy of formation) of specific actinide-bearing mineral phases, related non-actinide phases, and potential decomposition phases is vital to waste material formulation, fabrication process optimization, environmental modeling, and licensing a proposed mineral waste material. Two and one half years ago we began a study designed to obtain the first measured values for the formation energetics of phases related to the disposal of this surplus weapons plutonium.