Results 61 to 70 of about 726 (182)

Quantitative determination of the leaching range of in-situ leaching mining area by stagnation point

Nuclear Engineering and Technology
The leaching range is critical to the leaching efficiency, production cost and environmental effect of in-situ leaching of uranium. In this study, the groundwater dynamics of the well-site was simulated to determine the leaching range in condition of ...
Chong Zhang, Yongmei Li, Yuqing Niu, Kaixuan Tan, Tingting Xie, Yixuan Yao, Chunguang Li, Zhenzhong Liu   +7 more
doaj   +1 more source

Theoretical and technical framework of collaborative mining of coal and uranium resources

Meitan xuebao
Coal and uranium resources are extensively co-existing in Ordos Basin, characterized by a vertical stacked occurrence of “uranium above and coal below”.
Chuanjiu ZHANG, Jiandong REN, Wen WANG, Jianhua LI, Tong ZHANG, Yihe YU, Jucai CHANG, Tenglong RONG, Lixin ZHAO, Zhencheng ZHONG, Congfei LI, Peng LI, Guoquan SUN, Liguo LIU   +13 more
doaj   +1 more source

PHYSICO-CHEMICAL TECHNOLOGY OF HEAP LEACHING AT MKUJU RIVER DEPOSIT IN TANZANIA

RUDN Journal of Engineering Research, 2018
Purpose. The purpose of this work was to examine various aspects of the physico-chemical heap leaching technology at the Mkuju River in Tanzania. The objectives of the study were to determine the basic geotechnological conditions of the Mkuju River ...
Evgeniy V Kiselevskiy, Juma Kassim Kumbikila, Valentina M Usova   +2 more
doaj   +1 more source

Stochastic Simulation of Leaching Range in In-situ Leaching Process Considering Uncertainty of Permeability Coefficient

Yuanzineng kexue jishu, 2023
Numerical simulation is an important method to determine the leaching range in the process of in-situ uranium mining, and the permeability coefficient is an important factor affecting the accurate calculation of leaching range by numerical simulation ...
JI Wengui;LUO Yue;LIU Jinhui;LI Xun;LI Liyao;YU Dongyuan;WU Hui
doaj  

A Method of Estimating Uranium Reduction Degree for In situ Leaching Uranium Mine Restoration

Journal of Isotopes
To address the challenge of evaluating groundwater remediation effectiveness after in situ Leaching (ISL) uranium mining，this study proposes a novel quantitative assessment method based on uranium isotopic fractionation (δ238U).
Jie GAO, Guoping¹ JIANG, Lechang XU, Penghua HU, Lei ZHOU   +4 more
doaj   +1 more source

Hydrodynamics control for the well field of in-situ leaching of uranium

Nuclear Engineering and Technology
In this study, the groundwater hydrodynamics of two adjacent well sites were simulated under different pumping-injection ratios. The aim is to select an optimal pumping-injection ratio that can ensure the groundwater of the two well sites don't affect each other.
Yongmei Li, Chong Zhang, Zhipeng Tang, Chunguang Li, Zhenzhong Liu, Kaixuan Tan, Longcheng Liu   +6 more
openaire   +2 more sources

Experimental study on microbial mineralization for removing contaminants from groundwater in mining areas of in-situ uranium leaching

He jishu
BackgroundThe remediation technology for U(VI), Ca2+ and other pollutants in the groundwater of the mining area of in-situ leaching of uranium has become a key technical bottleneck restricting the decommission of uranium mine, and the microbial-induced ...
HE Guicheng, ZHU Xiaoyu, LI Yongmei
doaj   +1 more source

Prediction of extraction uranium concentration and optimization of injection acid concentration using a CNN–GRU–attention model in in-situ uranium leaching

Journal of Analytical Science and Technology
To improve the accuracy of uranium concentration prediction and the scientific regulation of acid injection concentration in In-situ leaching uranium mining, this study proposes a deep learning model that integrates Convolutional Neural Networks (CNN ...
Zhenhua Wei, Long Wang, Zhifeng Liu, Yipeng Zhou   +3 more
doaj   +1 more source

Pilot Test of Automated U-shaped Ion Exchange Facility

Yuanzineng kexue jishu
The escalating demands for efficient uranium extraction and environmentally sustainable mining practices underscore the need to address the inefficiencies in conventional acid in-situ leaching processes.
CHEN Xi, XIA Qingyin, CHENG Wei, HUO Jiandang
doaj   +1 more source

Performance and mechanism of nano-hydroxyapatite in removing uranium from groundwater in decommissioned in situ leaching uranium mining areas

Meitan xuebao
This study addresses the issue of uranium-contaminated groundwater in decommissioned in situ leaching uranium mining areas. Nano-hydroxyapatite (HAP) was synthesized using the gel method, and its ability to remove U(Ⅵ) was investigated by studying the ...
Guicheng HE, Xiuyue CAO, Bingxiang HUANG, Can WANG, Dexin DING, Qinglin ZHANG, Hui ZHANG, Guoqing JIANG, Tao TAN   +8 more
doaj   +1 more source