Retention of pesticides in soil columns modified "in situ" and "ex situ" with a cationic surfactant [PDF]
, 2007 A study of the effect of a clayey soil modified in situ and ex situ with the cationic surfactant octadecyltrimethylammonium bromide (ODTMA), on the retention of linuron, atrazine and metalaxyl was carried out.
Sánchez-Martín, M.J. [0000-0002-8304-1232] +3 more
core +1 more source
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
doaj +1 more source
Issues of Improving Control and Increasing Efficiency of Production Blocks at an ISL Uranium Mine
Горные науки и технологии, 2020 The tasks of continuous optimizing production, looking for ways of increasing performance, cutting mining costs and expanding mineral resource base of a mining enterprise are becoming more relevant than ever in conditions of the current negative trends ...
D. R. Podrezov
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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
doaj +1 more source
Technical Advances and Techno-Economic Implications of CO2-O2 In Situ Leaching for Uranium Mining
MiningUranium is a resource with exceptionally high energy density, releasing substantially more energy per unit mass than conventional fossil fuels. In uranium mining, in situ leaching offers significant advantages over open-pit and underground mining ...
Guihe Li, Jun He, Jia Yao
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Metals, 2022 The leaching behaviors of gold and silver from a complex sulfide concentrate in copper-tartrate-thiosulfate solutions were investigated in this paper. Experimental parameters, including temperature, initial pulp pH, and concentration of copper, tartrate,
Junnan Chen +4 more
doaj +1 more source
Mobility of daughter elements of 238U decay chain during leaching by In Situ Recovery (ISR): New insights from digital autoradiography [PDF]
, 2020 International audienceIn highly permeable sedimentary rock formations, U extraction by in-situ leaching techniques (ISR À In-Situ Recovery) is generally considered to have a limited environmental impact at ground level.
Sardini, Paul +9 more
core +1 more source
Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework
Advanced Functional Materials, EarlyView.The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu +13 more
wiley +1 more source
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
doaj +1 more source
Review and Prospect of Uranium Hydrometallurgy in China
He huaxue yu fangshe huaxueUranium is an important strategic resource and energy mineral. With the rapid development of nuclear power, the demand for natural uranium has been increasing year by year.
Xue-bin SU +10 more
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