Results 121 to 130 of about 1,141,580 (265)
Enhancement of Extraction of Uranium from Seawater
, 2016 Even at a concentration of 3 μg/L, the world’s oceans contain a thousand times more uranium than currently know terrestrial sources. In order to take advantage of this stockpile, methods and materials must be developed to extract it efficiently, a difficult task considering the very low concentration of the element and the competition for extraction by
Mohamad Al-Sheikhly +8 more
openaire +2 more sources
Sedimentology, EarlyView.ABSTRACT The Triassic succession of the northern North Sea comprises a series of interbedded sandstones, mudstones and conglomerates deposited under a fluctuating arid to semi‐humid climate regime, which are often difficult to correlate regionally due to differing lithostratigraphic schemes and poor age control. Despite existing regional studies on the
Riccardo Sordi +3 more
wiley +1 more source
Phytostabilization of uranium-containing shale residues using Hieracium pilosella
, 2014 A greenhouse pot experiment was conducted to evaluate the feasibility of using Hieracium pilosella and soil microorganisms for phytostabilization of uranium-containing shale residues.
Viktor Sjöberg +5 more
core +1 more source
Rate phenomena in uranium extraction by amines [PDF]
, 1979 Kinetics studies and other rate measurements are reviewed in the amine extraction of uranium and of some other related and associated metal ions. Equilibration is relatively fast in the uranium sulfate systems most important to uranium hydrometallurgy ...
McDowell, W.J., Coleman, C.F.
core
Synthesis and uranyl(VI) extraction performance of a calix[4]pyrrole–tetrahydroxamic acid receptor
Beilstein Journal of Organic ChemistryThe contamination of water by uranium poses a serious threat to ecosystems and human health, creating a need for efficient and selective remediation strategies.
Sara Karnib +7 more
doaj +1 more source
یافتههای نوین در علوم زیستی, 2019 In Acidithiobacillus ferrooxidans, the proteins present in the electron transfer pathway cause ferrous iron oxidation which leads to uranium extraction. The relationship between gene sequence and uranium extraction has not been investigated yet. Based on
Somayeh Farahmand +2 more
doaj
, 1992 Solvent extraction is employed very widely in both fundamental research and technology because of the remarkable features of this simple but very effective technique for the separation of different materials.
Kusakabe, S.(Satoshi), +2 more
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The isotope geochemistry of uranium: Igneous petrology, ore deposits, and groundwater contamination [PDF]
, 2010 This study applies high precision 238U/235U measurement techniques two three geologic settings: basalt differentiation, uranium ore genesis, and the remediation of a uranium-contaminated groundwater system. In the latter two cases, 238U/235U is used as a
Bopp, Charles J., IV
core
Metalurgija, 2019 Recently, one of the main directions for increasing the extraction of uranium from difficult-to-hide ores is the use of intensifiers, which allow the most complete transfer of uranium from one valence state to another. In the article, the catalyst “M-1”,
B. K. Kenzhaliyev +2 more
doaj