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Restoration of Uranium In-Situ Leaching Sites
Society of Petroleum Engineers Journal, 1980Abstract In recent years in-situ leach mining has emerged as a new technology for the recovery of uranium from strata that cannot be mined economically by other means. Because the ore bodies lie within groundwater aquifers, a significant determinant in the process' viability is the requirement that such aquifers be protected from ...
A. D. Hill +5 more
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Controlled microbiological in-situ stope leaching of a sulphidic ore
Applied Microbiology and Biotechnology, 1993A mixed culture of Thiobacillus ferrooxidans, T. thiooxidans, and Leptospirillum ferrooxidans was used for inoculation of a sulphidic ore body for a bacterial in-situ stope-leaching experiment in the Ilba mine in Romania. The ore body was inoculated with 107 cells/g ore.
Sand, Wolfgang +4 more
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Uranium In Situ Leaching Sulfur Chemistry
Mining, Metallurgy & Exploration, 1985In situ leaching of uranium by aqueous ammonium carbonate containing oxygen or hydrogen peroxide as oxidant results in the partial dissolution of sulfides. While some of the sulfide sulfur is oxidized to sulfate, a considerable portion is oxidized only to thiosulfate and polythionates. Polythionates poison the ion exchange resin used to extract uranium.
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Aquifer restoration at uranium in situ leach sites
International Journal of Mine Water, 1984In situ mining of uranium involves injection of a leaching solution (lixiviant) into an ore-bearing aquifer. Frequently, the ground water in the mined aquifer is a domestic or livestock water supply. As the lixiviant migrates through the ore body, uranium and various associated elements such as arsenic, selenium, molybdenum, vanadium and radium-226 are
Frank S. Anastasi, Roy E. Williams
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Journal of Contaminant Hydrology
Vertical wells are predominantly used for both injection and extraction in uranium in-Situ leaching (ISL), yet they often produce uneven spreading of leaching solution and relatively low leaching efficiency. Horizontal wells, widely applied in oil and shale-gas operations, offer a plausible alternative for solution injection, but their suitability for ...
Yong, Chang +7 more
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Vertical wells are predominantly used for both injection and extraction in uranium in-Situ leaching (ISL), yet they often produce uneven spreading of leaching solution and relatively low leaching efficiency. Horizontal wells, widely applied in oil and shale-gas operations, offer a plausible alternative for solution injection, but their suitability for ...
Yong, Chang +7 more
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Uranium Deposits (In-Situ Leach Projects)
2016Sandstone-type uranium deposits are commonly located below the water table in weakly lithified or non-consolidated sands, and therefore they can be exploited using In-Situ Leach (ISL) technology. Such technology is based on dissolving uranium minerals directly in their host rocks (in-situ) by reactive solutions that are injected through drill holes ...
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Critical Review of In-Situ Leach Uranium Mining Practices [PDF]
In-Situ Leaching (ISL) involves the extraction of uranium by delivering a solution through well bores into an underground uranium ore-body. The solution dissolves the uranium and is intercepted and pumped to the surface for processing. The ISL process is an economically attractive method for extracting uranium ore from low-strength saturated sands or ...
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In Situ Precipitation of Scorodite in Atmospheric Leaching of Enargite
2018Enargite, known as one of the major arsenic containing copper minerals, with approximately 19% arsenic, introduces challenges to typical processing options. In most hydrometallurgical processing methods, arsenic remediation occurs after the copper recovery in an autoclave or in a stepwise neutralization process. In this study, the in situ precipitation
Fazel G. Jahromi, Ahmad Ghahreman
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In-situ leaching technology for uranium deposits
Eurasian Mining, 2021E. S. Oryngozhin +3 more
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