Results 11 to 20 of about 726 (182)
Advances in Research on Uranium Isotope Fraction in Nature and Prospects
He huaxue yu fangshe huaxue, 2022 Uranium is the heaviest naturally occurring radioactive element in nature, and it is widely distributed in the earth’s crust. With the improvement of the technical accuracy of mass spectrometry to measure uranium isotope ratios, it is gradually ...
SONG Jing +5 more
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In-situ leaching of molybdenum and uranium by percarbonate and chloride-hypochlorite solutions
Записки Горного института, 2022 In-situ leaching of molybdenum and uranium is becoming an increasingly common process. The features of the material composition of ores, leading to a decrease in their filtration properties, were considered.
Igor Yu. Rasskazov +2 more
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MANAGING THE HORIZON-ORIENTED IN-SITU LEACHING FOR THE URANIUM DEPOSITS OF MONGOLIA
Rudarsko-geološko-naftni Zbornik, 2023 This paper summarizes the results of evaluating uranium in-situ leaching (ISL) parameters for hydrogenous deposits in eastern Mongolia. This method, also known as in-situ recovery (ISR) or solution mining was proposed for mining used to extract uranium ...
Oleh Khomenko +5 more
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Estimating the Discharge Amount of Radon from Production Wells of CO2+O2 Uranium Mine
Journal of Isotopes, 2023 CO2+O2 in situ leaching uranium mine is the representative of the third generation uranium mining and metallurgy technology in China. In terms of radiation protection, the radon emission and the effective dose of the public are significantly lower than ...
ZHANG Hui;NIU Jie;DENG Jun;XU Lechang
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Royal Society Open Science, 2021 As an important nuclear fuel, uranium in sandstone uranium deposits is mainly extracted by in situ leaching. The porosity of sandstone is one of the important indexes determining in situ leaching efficiency.
Sheng Zeng +5 more
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Determination of Uranium Distribution in Amino Phosphonic Acid Chelating Resin by LA-ICP-MS
He huaxue yu fangshe huaxue, 2023 In this paper, based on the research background of recovering uranium from wet-process phosphoric acid(WPA) by amino phosphonate acid chelating resin, the distribution of uranium in single particle amino phosphonate chelating resin was studied.
WANG Ya-nan +8 more
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Bioremediation of Uranium- and Nitrate-Contaminated Groundwater after the In Situ Leach Mining of Uranium [PDF]
Water, 2021 Uranium and nitrate are common groundwater pollutants near in situ leach uranium mines. However, we still lack techniques that can simultaneously immobilize uranium and reduce nitrate using a single bacterial species. In this study, the potential of simultaneous uranium immobilization and nitrate reduction by a single AFODN (anaerobic Fe(II) oxidizing ...
Wufuer, Rehemanjiang +4 more
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Frontiers in Microbiology, 2023 Microorganisms play an important role in the bioremediation process for the decommissioned acid in-situ leaching uranium mine. It is crucial to understand the original microbial community characteristics before the in-situ bioremediation.
Fangfang Zhu +5 more
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Optimization of groundwater contamination control in decommissioned acid in-situ leach uranium mines
Nuclear Engineering and TechnologyUpon decommissioned acid in-situ leaching (ISL) uranium mining sites, contaminants (e.g. U(VI), SO42−) tend to migrate downstream under natural groundwater flow, posing significant risks to groundwater quality.
Genmao Zhou +8 more
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Fractal characteristics of uranium‐bearing sandstone structure and their effects on acid leaching
Energy Science & Engineering, 2019 Pore structure characteristics have significant effects on the flow distribution, seepage characteristics, and reaction mechanism of the leachate as well as the uranium leaching efficiency in‐situ leaching (ISL) of uranium.
Sheng Zeng +6 more
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