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Haibo Li, Zhonghua Tang and Dongjin Xiang
Acid in situ leaching (ISL) is a common approach to the recovery of uranium in the subsurface. In acid ISL, there are numerous of chemical reactions among the injected sulfuric acid, groundwater, and porous media containing ore layers. A substantial amou...
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Andrés Cardenas, Maria I. Dias, Catarina Diamantino, Edgar Carvalho, Dulce Russo and Rosa Marques
New insights about the geochemical behavior of actinides and lanthanides in an old uranium mine are provided for the first time in this work. Fifteen samples (water, soil, and sediments) were collected inside and outside the Quinta do Bispo old mine (Por...
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Wael M. Badawy, Mohamed Mitwalli, Andrey Yu. Dmitriev, Olesia Chepurchenko, Gehad Saleh, Ali El-Farrash, Maksim Bulavin, Tarek Morsi and Mohammed Sallah
The present work was carried out to determine the elemental composition of granitoid rock samples from three gold mines (Sukari, Hamash, and Um Hagalig) in the South-eastern part of Egypt and quantification of the extent of the elemental enrichment. A to...
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Margarida Antunes, António Santos, Teresa Valente and Teresa Albuquerque
Uranium and thorium are toxic in different environments. The exploitation of uranium mines and associated mine drainage leaching towards streams, sediments, and soils cause relevant pollution. The U-mine areas present high concentrations of potentially t...
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Aris Auzans, Erich A. Schneider, Robert Flanagan and Alan H. Tkaczyk
Economic analysis and market simulation tools are used to evaluate uranium (U) supply shocks, sale or purchase of uranium stockpiles, or market effects of new uranium mines or enrichment technologies. This work expands on an existing U market model that ...
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Frank Winde
This is the final part of a paper series on the ability of peat to filter uranium (U) from mining-polluted water. The focus is on the characterization and site-specific quantification of the chemical component of the filter model introduced in Part II. B...
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Frank Winde
As Part III of a four-part series on the filter function of peat for uranium (U), this paper focuses on the hydraulic component of a conceptual filter model introduced in Part II. This includes the quantification of water flow through the wetland as a wh...
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Frank Winde
As the second part of a series of four, this paper reviews a number of case studies of natural uranium attenuation in peat, as well as underlying chemical mechanisms reported in literature. Based on this review, a generic, conceptual, model for peat to a...
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Frank Winde and Ewald Erasmus
Located downstream of goldfields of the Witwatersrand basin, the Gerhard Minnebron (GMB) Eye?as major water source for downstream community of some 300,000 people?may be impacted on by mining-related water pollution especially with uranium (U). Containin...
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