Results 31 to 40 of about 1,141,630 (281)
Evaluation the effect of uranium ore concentrations on the cyc2 gene expression in the mutated Acidithiobacillus sp. FJ2 [PDF]
Biological Journal of Microorganism, 2018 Introduction: The uranium bioleaching process is performed using Acidithiobacillus ferrooxidans. This bacterium is capable of iron oxidation by an electron transport chain.
Faezeh Fatemi +2 more
doaj +1 more source
Progress and Challenges of Materials and Methods for Uranium Extraction From Seawater
He huaxue yu fangshe huaxue, 2023 The ocean covers 70% of the earth’s area, and the seawater uranium is more than 1000 times that of terrestrial uranium ore. In order to increase the power generation and ensure the sustainable operation of nuclear power plants, the development of ...
TANG Xing-rui +8 more
doaj +1 more source
Unlocking Zenith Electronic State of Ni Sites in Ligand-Engineered COFs for Efficient •O<sub>2</sub> <sup>-</sup>-Driven Uranium Photoreduction. [PDF]
Adv Sci (Weinh)We develop a ligand engineering strategy to construct Ni‐diketimine‐linked COFs with precisely tuned Ni electronic states. By varying the coordinated diketone units, we achieve an optimal electronic configuration that enhances O2 adsorption and lowers the energy barrier for •O2− generation.
Wu G +5 more
europepmc +2 more sources
Removal of chromium (III) by two-aqueous phases extraction [PDF]
, 2009 Two-aqueous phase extraction of chromium (III) as a solute from their aqueous solutions was investigated using polyethoxylated alcohols (CiEj) as a biodegradable non-ionic surfactant in the presence of anionic sodium dodecylbenzene sulfonate (SDBS ...
Nasr-Eddine, Belkhouche +3 more
core +1 more source
Fluorometric Microdetermination of Uranium. II. Extraction of Uranium [PDF]
Bulletin of the Chemical Society of Japan, 1950 Abstract A minute amount of uranium suitable for the fluorometric method of determination is effectively precipitated from the solution together with hydrous ferric oxide as co-precipitator. The efficiency of co-precipitation seems to be nearly perfect for the purpose, and the adsorption and the digestion effect were observed in ...
openaire +1 more source
The Application Of Nitrogen Laser On Extraction Of Uranium In The Long Life Of High Level Radioactive Liquid Waste Using TBP-Kerosene Solvent [PDF]
, 2012 The radionuclide of uranium (U) is major radionuclide contained in the long life of high level radioactive liquid waste (HLLW) generated from reprocessing of spent nuclear fuel.
G, Gunandjar
core +1 more source
Desalination and Water Treatment, 2009 Kinetics of the mass transfer processes involved in uranium recovery from wet process phosphoric acid (WPA) by solvent extraction employing synergistic extractants has been studied. In the present investigation results on the kinetics of separation of entrained solvent by diluent washing and uranium mass transfer behaviour have been discussed.
Kartikey K. Yadav +2 more
openaire +1 more source
Uranium extraction with modified sorbents
Kompleksnoe Ispolʹzovanie Mineralʹnogo syrʹâ/Complex Use of Mineral Resources/Mineraldik Shikisattardy Keshendi Paidalanu, 2020 Hydrometallurgical processing of uranium-containing raw materials generates a significant amount of liquid industry-related waste, namely waste solutions that require disposal. Sorption is known as one of the most effective methods for purifying liquid matters contaminated with radionuclides.
B.E. Abdikerim +6 more
openaire +1 more source
Uranium separations using extraction chromatography
, 2000 In the analysis of environmental samples for uranium and thorium pollutants and at natural levels for the dating of geological samples there was felt a need to develop better uranium and thorium separation procedures to replace the established anion ...
Helen Carter (7166609)
core +6 more sources
Modeling Uranium Transport in Koongarra, Australia: The Effect of a Moving Weathering Zone [PDF]
, 2001 Natural analogues are an important source of long-term data and may be viewed as naturally occurring experiments that often include processes, phenomena, and scenarios that are important to nuclear waste disposal safety assessment studies.
Hassanizadeh, S.M. +2 more
core +1 more source