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Permeability restoration and lowering of uranium leakage from leached ore beds
Permeability restoration and lowering of uranium leakage from leached ore beds
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机译:恢复渗透性并降低浸出矿床中铀的泄漏
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摘要
The injection of an ammonium sulfite or bisulfite solution increases the permeability of an uranium ore bed that has suffered permeability losses during the in-situ mining of uranium with an alkaline leach solution containing a peroxide or dissolved oxygen oxidant. Such an injection recovers much of the lost formation permeability, thus decreasing costs and effort required to put needed restoration solutions or further leach solutions through the ore bed. In addition, uranium contamination of the ground water normally occurring after cessation of leaching is significantly lowered by such injection.
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