Results 21 to 30 of about 86,385 (292)

Geochemical and S isotopic studies of pollutant evolution in groundwater after acid in situ leaching in a uranium mine area in Xinjiang

Nuclear Engineering and Technology, 2023
Laboratory experiments and point monitoring of reservoir sediments have proven that stable sulfate reduction (SSR) can lower the concentrations of toxic metals and sulfate in acidic groundwater for a long time.
Zhenzhong Liu, Kaixuan Tan, Chunguang Li, Yongmei Li, Chong Zhang, Jing Song, Longcheng Liu   +6 more
doaj   +1 more source

Optimization of groundwater contamination control in decommissioned acid in-situ leach uranium mines

Nuclear Engineering and Technology
Upon 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, Haixiao Zuo, Yong Chang, Yun Yang, Ting Zhu, Jianmin Chu, Yinquan Ding, Jianfeng Wu, Jichun Wu   +8 more
doaj   +1 more source

Effect of Pyrite on the Leaching Kinetics of Pitchblende in the Process of Acid In Situ Leaching of Uranium

Minerals, 2022
In the process of acid in situ leaching of sandstone uranium ore, pyrite, which is a common associated mineral of pitchblende, would inevitably participate in the reaction. Therefore, it is important to study the influence of pyrite on the leaching kinetics of pitchblende.
Peng Wang, Kaixuan Tan, Yongmei Li, Zhenzhong Liu, Chunguang Li, Wanyu Tan, Yunting Tian, Wuyang Huang   +7 more
openaire   +1 more source

Technical Advances and Techno-Economic Implications of CO₂-O₂ In Situ Leaching for Uranium Mining

Mining
Uranium 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
doaj   +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

Evaluation of probabilistic modelling approaches against data on leaching of isoproturon through undisturbed lysimeters [PDF]

, 2004
This study evaluated probabilistic modelling approaches against data on leaching of isoproturon through two contrasting soil types. Leaching through undisturbed lysimeters from a sandy loam (Wick series) and a moderately structured clay loam (Hodnet ...
Dubus, Igor G., Beulke, Sabine, Walker, Allan, Brown, Colin D., Fryer, Christopher J.   +4 more
core   +1 more source

Laboratory Simulation of In-situ Leaching of Polyhalite

Procedia Earth and Planetary Science, 2011
AbstractDeeply buried polyhalite is a kind of sulfate which contains about 28% potassium sulfate. Extraction potassium from polyhalite using in-situ leaching technology can help to resolve the problem of potassium shortage. This paper indicates a modeling study of leaching polyhalite in laboratory.
Zhao, Xian-yin, An, Lian-ying, Liu, Ning, Yin, Hui-an, Tang, Ming-lin   +4 more
openaire   +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, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Review and Prospect of Uranium Hydrometallurgy in China

He huaxue yu fangshe huaxue
Uranium 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, Yuan YUAN, Xiu-min JIA, Wei CHENG, Hui LIU, Jin-xun DENG, Yu REN, Ying XU, Guo-long XU, Yun-sheng MENG, Ai-fei YI   +10 more
doaj   +1 more source

Human Gut Bacteria and Lipidic Nanoparticles: Particle Composition Predicts Structural Transformation and Bacterial Biocompatibility

Advanced Functional Materials, EarlyView.
Lipidic nanoparticles (LNPs) were incubated with 21 gut bacteria frequently associated with the human microbiome. SAXS revealed that ∼75% of tested species induced structural transformations in monoolein LNPs, whereas phytantriol and phospholipid formulations remained unaffected.
Jonathan Caukwell, Emily L. Gulliver, Livia Salvati Manni, Frithjof Herb, Caitlin Welsh, Samuel C. Forster, Andrew J. Clulow, Wye‐Khay Fong   +7 more
wiley   +1 more source