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Cyanide; Gold processing tailings; Net acid generation test; Natural cyanide attenuation; Residual cyanides
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A Study Of Residual Cyanides And Potential Stabilities In Tailings Storage Facility Of Gold Mining Operation, Suwanit Parinyachet, Quanchai Leepowpanth
A Study Of Residual Cyanides And Potential Stabilities In Tailings Storage Facility Of Gold Mining Operation, Suwanit Parinyachet, Quanchai Leepowpanth
Applied Environmental Research
The study aimed to investigate residual cyanides and their potential stabilities in tailings from a gold processing plant deposited in the Tailings Storage Facility (TSF) of a gold mining site. For this purpose, several samples of tailings were taken from the recently abandoned TSF to a depth of 2.5 meters, representing 1 to 2 years old tailings. The samples were analyzed for pH, metals, residual cyanides, and Net Acid Generation Test (NAG test). The results showed that, in all samples, pH values were neutral to slightly alkaline. Fe concentrations were relatively high (22,800-35,000 mg kg-1) indicating that Fe can readily …