Extracting gold from ore is a poisonous business. The most common method is cyanide leaching, where cyanide salts in solution are used to suck the gold out from its ore. You get gold, but you also get ...

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 ...

In the Philippines, as in many places across the globe, mercury has long been central to how small-scale gold miners earn their living. Used as an easy way to separate gold from other minerals they ...

Gold mining today is far from the charming, if soggy, practice of standing in a river and trying to sift out gold nuggets. Today, miners sift out gold from a river of cyanide, basically: They mine ...

Toxic cyanide spills may become a thing of the past, if research into a non-toxic chemical for gold extraction is put to use. Dr Matthew Jeffrey, a chemical engineer from Australia's Monash University ...

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Talk about cyanide, and images of a lethal pill used by spies to avoid capture come to mind. Few people outside the gold mining industry know that sodium cyanide is used in most of the world’s ...

Even though the Colorado Supreme Court last week rejected Summit County’s ban on cyanide-based gold mining, no one is expecting a rush of mining applications any time soon. “I think the chances are ...

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 ...

Since the modern gold rushes of the 1970s and 1980s, gold has been one of Australia's major exports. Australia is the second-largest gold producer globally behind China and holds the second largest ...