Retort (IMAGE)
Caption
Artisanal gold miners work with a retort constructed out of metal.
Collaborating with miners and local metal workers, Michigan State University researchers helped provide artisanal and small-scale gold mines with devices called retorts that restrict mercury emissions. Retorts capture mercury vapors and exhaust them into water, where the mercury condenses and can be collected.
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Courtesy Falaye Danfakha
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