Hanford Site Vadose Zone Studies: An Overview
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چکیده
منابع مشابه
Hanford Site Vadose Zone Studies: An Overview
899 The Hanford Site is 1517 km2 (586 mi2) in size, located in a sparsely populated area in the rain shadow of the Cascade Mountains, adjacent to the Columbia River in southeastern Washington State (Fig. 1). The Hanford Site was set aside in the early 1940s by the U.S. Government to perform a top-secret mission, the Manhattan Project, for production of plutonium for atomic weapons used to end W...
متن کاملSpectroscopic evidence for uranium bearing precipitates in vadose zone sediments at the Hanford 300-area site.
Uranium (U) solid-state speciation in vadose zone sediments collected beneath the former North Process Pond (NPP) in the 300 Area of the Hanford site (Washington) was investigated using multi-scale techniques. In 30 day batch experiments, only a small fraction of total U (approximately 7.4%) was released to artificial groundwater solutions equilibrated with 1% pCO2. Synchrotron-based micro-X-ra...
متن کاملDeep Vadose Zone Characterization at the Hanford Site: Accomplishments from the Last Ten Years
The overall goal of the Tank Farm Vadose Zone Project, led by CH2M HILL Hanford Group, Inc., is to define risks from past and future single-shell tank farm activities at Hanford. To meet this goal, CH2M HILL Hanford Group, Inc. tasked scientists from Pacific Northwest National Laboratory (PNNL) to perform detailed analyses on vadose zone sediments collected within/adjacent to the twelve single-...
متن کاملSpectroscopic and diffraction study of uranium speciation in contaminated vadose zone sediments from the Hanford site, Washington state.
Contamination of vadose zone sediments under tank BX-102 at the Hanford site, Washington, resulted from the accidental release of 7-8 metric tons of uranium dissolved in caustic aqueous sludge in 1951. We have applied synchrotron-based X-ray spectroscopic and diffraction techniques to characterize the speciation of uranium in samples of these contaminated sediments. UIII-edge X-ray absorption f...
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ژورنال
عنوان ژورنال: Vadose Zone Journal
سال: 2007
ISSN: 1539-1663,1539-1663
DOI: 10.2136/vzj2006.0179