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By Hugo Melo

The Role of Natural Attenuation for Arsenic in Heap Leach Drainage

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This study on the potential for attenuation of arsenic focused on the Oxide Heap Leach facility, Daisy Mine, Nevada and aimed to generate numerical predictions to evaluate closure options, focusing on geochemistry of solutes in groundwater upon interaction with draindown and the potential of chemical constituents in heap solutions to attenuate in the unsaturated alluvium and not degrade groundwater.