Results 81 to 90 of about 86,385 (292)

Research of hydrodynamic processes in in-situ leaching of uranium [PDF]

E3S Web of Conferences
Hydrodynamic processes in the selective transfer of uranium underground to solution were theoretically considered. The effect of the initial filtration gradient on the flow process of underground water flow of weakly permeable and poorly saturated ...
Rozikov Rajabboy
doaj   +1 more source

In-Situ Leach Uranium Mining: A Review

Energy Exploration & Exploitation, 1983
This paper describes a current technique (ISL) in uranium mining, i.e. by solution or ‘leaching’. Although it is not yet widespread, it promises a relatively cheap and efficent means of extracting uranium from orebodies in sandstone deposits, such as those of the USA, Australia and Japan.
openaire   +1 more source

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

Advanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao, Yiming Ma, Baihao Shao, Molly M. Stevens   +3 more
wiley   +1 more source

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

Toward a more sustainable mining future with electrokinetic in situ leaching. [PDF]

Sci Adv, 2021
Martens E, Prommer H, Sprocati R, Sun J, Dai X, Crane R, Jamieson J, Tong PO, Rolle M, Fourie A.   +9 more
europepmc   +1 more source

Management affects nitrate leaching from organic farms

, 2013
Management decisions significantly affect nitrate-N leaching (N-leaching) from comparable organic fields. The main concern is field management during autumn and themanagement of grass leys.
Eriksen, J., Askegaard, Margrethe
core  

Operando Electrochemical Formation of Integrated Ni‐Fe Oxyhydroxide Anode for Durable Anion Exchange Membrane Water Electrolyzer

Advanced Science, EarlyView.
The interfacial stability and activity of Ni‐Fe‐based AEMWE anodes can be directly enhanced by operando voltage‐cycling in a FeOOH‐containing electrolyte. This process simultaneously induces Ni oxidation and Fe incorporation, forming an integrated, porous (Fe, Ni)OOH layer with high conductivity and durability.
Euntaek Oh, Jonghyun Hyun, Hojin Lee, Changsoo Lee, Jang Yong Lee, Dong Wook Lee, Kyunghwa Seok, Jeesoo Park, Susung Kim, Gisu Doo, Hee‐Tak Kim   +10 more
wiley   +1 more source

Enhanced oxidative leaching of copper-iron sulfides using photo-assisted electrochemical advanced oxidation processes

Chemical Engineering Journal Advances
In this work, the effectiveness of electro-Fenton and photoelectro-Fenton processes for enhancing the oxidative leaching of copper-iron sulfide minerals such as chalcopyrite (CuFeS2) and bornite (Cu5FeS4) in aqueous suspension was investigated.
Juan Pablo Fuentes, Sapana Jadoun, Orlando Yepsen, Ricardo Salazar-González, Camilo Rivera-Vera, Lorena Cornejo-Ponce, David Conteras, Héctor D. Mansilla, Jorge Yáñez   +8 more
doaj   +1 more source

In situ leaching processes: Mathematical modeling for one-dimensional case

, 1997
In situ leaching is increasingly becoming an attractive mining method for extraction of mineral values from low-grade ore deposits. However, this method may not be adopted in practice until the various physical and chemical processes operating during ...
Brady, B. H., Liu, J.
core   +1 more source

Reinforcing Oxygen Activation of Spinel Oxide via Mn─O Covalency Engineering for VOCs Oxidation

Advanced Science, EarlyView.
A MnCo spinel catalyst with weakened Mn─O covalency was synthesized via a hard‐template method. The reduced Mn─O covalency facilitates localized electron redistribution, promoting the activation of both molecular oxygen and lattice oxygen, and thereby enabling the efficient and complete oxidation of VOCs (ethyl acetate, toluene, and propane).
Gan Li, Ruochen Zhou, Qianqian Chen, Guobo Li, Xiang Tu, Fengbo Yu, Wenming Liu, Jian Ji, Honggen Peng   +8 more
wiley   +1 more source