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Dear EarthTalk: Most gold mining operations use cyanide to extract gold from surrounding rock. What are the environmental implications of this, and are there alternatives? --J. Pelton, via e-mail ...

THE great success which has attended the introduction of potassium cyanide for the extraction of gold has created a widespread interest in this chemical process, and given rise to several books and ...

Researchers from ESPOL and Ghent University have evaluated two methods for treating highly contaminated wastewater mining effluents generated during gold cyanidation in the mining industry: a ...

Gold is one of the world’s most popular metals. Malleable, conductive and non-corrosive, it’s used in jewelry, electronics, and even space exploration. But traditional gold production typically ...

Getting your Trinity Audio player ready... LEADVILLE — Millions of tons of waste from decades-old mining operations sit in the hills east of town. The brown and orange piles of abandoned ore rise 30 ...

To assist mining companies in managing and recovering cyanide, engineering consultancy AZMET Technology & Projects developed the AZMET cyanide recovery process (AZ-CRP) to provide an alternative to ...

Getting your Trinity Audio player ready... A company that wants to extract gold from piles of decades-old mining waste outside Leadville no longer plans to use cyanide in its processes after hearing ...

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