Identification of the Non-Pertechnetate Species in Hanford Waste Tanks, Tc(I)−Carbonyl Complexes
نویسندگان
چکیده
منابع مشابه
Behavior of Technetium in Alkaline Solution: Identification of Non- Pertechnetate Species in High-Level Nuclear Waste Tanks at the Hanford Reservation
Technetium is a long-lived (Tc: 213,000 year half-life) fission product found in nuclear waste and is one of the important isotopes of environmental concern. The known chemistry of technetium suggests that it should be found as pertechnetate, TcO4, in the extremely basic environment of the nuclear waste tanks at the Hanford site. However, other chemical forms of technetium are present in signif...
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The Department of Energy’s River Protection Project (RPP) is tasked with retrieving highly radioactive waste from Hanford double-shell and single-shell tanks to provide feed for vitrification for long-term storage. Approximately 330,000 metric tons of sodium-rich radioactive waste originating from separation of plutonium from irradiated uranium fuel is stored in 177 underground tanks at Hanford...
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The atomic structure of dioctahedral 2:1 phyllosilicate edge surfaces was calculated using pseudopotential planewave density functional theory. Bulk structures of pyrophyllite and ferripyrophyllite were optimized using periodic boundary conditions, after which crystal chemical methods were used to obtain initial terminations for ideal (110)and (010)-type edge surfaces. The edge surfaces were pr...
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on the Columbia River plateau, a semiarid region in south-central Washington (Fig. 1), the Hanford Site At the Hanford Site, highly radioactive and chemically aggressive served as a plutonium production facility for nuclear waste fluids have leaked from underground storage tanks into the vadose zone. This paper addresses hydrogeological issues at the weapons from 1944 to the end of the Cold War...
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The melting of glacial ice that formed in the middle of the twentieth century may be a source of a cocktail of persistent, bio accumulative toxic substances that can threaten human health and the environment, according to a study by Christian Bogdal, a postdoctoral research fellow at the Swiss Federal Institute of Technology, Zürich, and colleagues in the 1 November 2009 issue of Environmental ...
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ژورنال
عنوان ژورنال: Environmental Science & Technology
سال: 2004
ISSN: 0013-936X,1520-5851
DOI: 10.1021/es034318d