Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Kenneth M. Krupka"'
Publikováno v:
Radiochimica Acta. 100:243-253
Batch reaction experiments and solid-phase characterization analyses were completed to examine the uptake of dissolved perrhenate [Re(VII)] or pertechnetate [Tc(VII)] by A-516 steel coupons that corroded in simulated groundwater solutions or dilute w
Autor:
Kenneth M. Krupka, William J. Deutsch, Kirk J. Cantrell, R. Jeffrey Serne, Michael L. Lindberg
Publikováno v:
Applied Geochemistry. 26:1681-1693
Residual waste is expected to be left in 177 underground storage tanks after closure at the U.S. Department of Energy’s Hanford Site in Washington State (USA). In the long term, the residual wastes represent a potential source of contamination to t
Publikováno v:
Environmental Science & Technology. 44:5855-5861
Quantum-mechanical methods were used to evaluate mechanisms for possible structural incorporation of Tc species into the model iron oxide, hematite (alpha-Fe2O3). Using periodic supercell models, energies for charge-neutral incorporation of Tc4+ or T
Autor:
Christopher F. Brown, Jonathan P. Icenhower, Kenneth M. Krupka, R. Jeffrey Serne, Jeffrey G. Catalano
Publikováno v:
Applied Geochemistry. 25:97-104
Five U-contaminated sediment samples collected near nuclear waste storage and processing facilities at Hanford, Washington, were subjected to characterization and leach tests. Discrete U-bearing particles and U-rich areas were identified using SEM an
Autor:
Donald R. Baer, Andrew E. Grosz, Eugene S. Ilton, Kenneth M. Krupka, Alex Pepin, Ryland L. Penn, Juan Liu
Publikováno v:
Physics and Chemistry of the Earth, Parts A/B/C. 35:233-241
Magnetic and density separation methods have been applied to composite sediment samples from the Hanford formation from sediment recovered during drilling of an uncontaminated borehole located near the 200 West Area of the Hanford Site in southeaster
Publikováno v:
Environmental Science & Technology. 41:3587-3592
A series of U(VI) sorption experiments with varying pH, ionic strength, concentrations of dissolved U(VI), and alkalinity was conducted to provide a more realistic database for U(VI) sorption onto near-field vadose zone sediments at the proposed Inte
Autor:
Brady D. Hanson, Kenneth M. Krupka, Edgar C. Buck, Evan D. Jenson, Bruce W. Arey, Judah I. Friese, Bruce K. McNamara
Publikováno v:
Radiochimica Acta. 93:159-168
Summary The contact of commercial spent nuclear fuel (CSNF) with water over a 2-year period led to an unexpected corrosion phase and morphology. At short hydration times, crystallites of metaschoepite [(UO2)8O2(OH)12](H2O)10 were observed on the hydr
Autor:
YuLong Xie, S. W. Li, Christopher J. Murray, Kenneth M. Krupka, Nancy J. Hess, Eric E. Roden, Raymond E. Wildung
Publikováno v:
FEMS Microbiology Ecology. 49:151-162
Pertechnetate ion [Tc(VII)O(4) (-)] reduction rate was determined in core samples from a shallow sandy aquifer located on the US Atlantic Coastal Plain. The aquifer is generally low in dissolved O(2) (1 mg L(-1)) and composed of weakly indurated late
Autor:
S. W. Li, John M. Zachara, Kenneth M. Krupka, James K. Fredrickson, Yuri A. Gorby, David W. Kennedy, Martine C. Duff
Publikováno v:
Geochimica et Cosmochimica Acta. 64:3085-3098
Dissimilatory metal-reducing bacteria (DMRB) can utilize Fe(III) associated with aqueous complexes or solid phases, such as oxide and oxyhydroxide minerals, as a terminal electron acceptor coupled to the oxidation of H2 or organic substrates. These b
Permanent storage of anthropogenic CO2 in deep geologic formations is being considered as a means to reduce the concentration of atmospheric CO2 and thus its contribution to global climate change. To ensure safe and effective geologic sequestration,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e82f3445e54a67dadaaa36812f5f9128
https://doi.org/10.2172/992369
https://doi.org/10.2172/992369