Zobrazeno 1 - 10
of 19
pro vyhledávání: '"A. G. Sowder"'
Autor:
Terry J. Gentry, Pamela J. Morris, Jizhong Zhou, Michelle T. Novak, Andrew G. Sowder, Joy D. Van Nostrand, Tatiana V. Khijniak, Paul M. Bertsch
Publikováno v:
Microbial Ecology. 53:670-682
Microbial communities from riparian sediments contaminated with high levels of Ni and U were examined for metal-tolerant microorganisms. Isolation of four aerobic Ni-tolerant, Gram-positive heterotrophic bacteria indicated selection pressure from Ni.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6985f31cb5615a519b6beac3d91b5631
https://doi.org/10.1007/s00248-006-9160-7
https://doi.org/10.1007/s00248-006-9160-7
Autor:
John C. Seaman, A. G. Sowder, Brian P. Jackson, S. A. Aburime, Paul M. Bertsch, Vijay M. Vulava
Publikováno v:
Environmental Geosciences. 12:235-242
Tims Branch, a stream on the U.S. Department of Energy's Savannah River Site located near Aiken, South Carolina, received significant amounts U and Ni as a result of nuclear materials production and refinement. Batch and column experiments were used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96f4c2461145498e62a20c495d94a930
https://doi.org/10.1306/eg.06210404010
https://doi.org/10.1306/eg.06210404010
Publikováno v:
Environmental Science & Technology. 39:2478-2485
The dissolved phase of environmental aqueous samples is generally defined by filtration at 0.2 microm or even 0.45 microm. However, it is also acknowledged that colloids
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::352662b74629a9b027322d1fb10ca752
https://doi.org/10.1021/es0485208
https://doi.org/10.1021/es0485208
Publikováno v:
Journal of Environmental Quality. 32:885-898
The effects of iron oxides and organic matter on the partitioning and chemical lability of U and Ni were examined for contaminated riparian sediments from the U.S. Department of Energy's Savannah River Site. In sequential extractions of four sediment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8d5c6f2e1c648db4d5a0a3b27419f9a
https://doi.org/10.2134/jeq2003.8850
https://doi.org/10.2134/jeq2003.8850
Publikováno v:
Radiochimica Acta. 91:93-96
Synthetic metaschoepite was altered at 70 °C, for 30 days in silicate solutions of varying compositions to study alteration reactions and to compare experimental observations with a thermodynamic model of stability of the uranyl minerals metaschoepi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe9e8b6acd5504bb07e0cb4437b5cfa8
https://doi.org/10.1524/ract.91.2.93.19992
https://doi.org/10.1524/ract.91.2.93.19992
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 248:517-524
Kinetic dissolution studies were conducted on four prominent U-Ca-PO4 minerals (metaschoepite, becquerelite, chernikovite and metaautunite). Synthetic samples were contacted with four extractants (acetic acid, deionized water, EDTA and sodium bicarbo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7350ecd3979b50e31005a5d12a0330be
https://doi.org/10.1023/a:1010602225070
https://doi.org/10.1023/a:1010602225070
Publikováno v:
Radiochimica Acta. 88:533-538
The dehydration of uranyl minerals can affect phase structure and stability. Synthetic autunite hydrates, Ca[(UO2)(PO4)]2· × H2O, were studied by X-ray powder diffractometry (XRD) and thermogravimetric analysis (TGA) to address ambiguous or contrad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12ec1c9625d7b32d244f2212e0df86ff
https://doi.org/10.1524/ract.2000.88.9-11.533
https://doi.org/10.1524/ract.2000.88.9-11.533
Publikováno v:
Environmental Science & Technology. 33:3552-3557
The U(VI) solid phases schoepite, metaschoepite, and dehydrated schoepite are important reservoirs of mobile uranium in the environment. These simple uranyl oxide hydrates result from weathering of uranium minerals and the corrosion of anthropogenic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f91db3919d92d35626c9e033d5a598c
https://doi.org/10.1021/es9901516
https://doi.org/10.1021/es9901516
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 234:257-260
Laser-induced kinetic phosphorimetry is an accurate, sensitive and rapid alternative to radiometric determination of natural and depleted uranium in aqueous solutions. This method offers detection limits below 10 ng/l U (2.5·10−4 Bq/l natural U) a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83132be2aacc6b55bf9106b77138b808
https://doi.org/10.1007/bf02389781
https://doi.org/10.1007/bf02389781
Publikováno v:
Radiochimica Acta. 74:45-50
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5682d0eeac151eefa5cf3cbd95d960e1
https://doi.org/10.1524/ract.1996.74.special-issue.45
https://doi.org/10.1524/ract.1996.74.special-issue.45