By Shane Lasley
Metal Tech News
Acid mine drainage may offer rare earths
New process could turn enviro concern into producing asset Metal Tech News Weekly Edition August 12, 2020
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Last updated 7/10/2022 at 2:45pm
United States Geological Survey
Acid mine drainage is often colored red from the iron and other metals dissolved in the water. Penn State scientists have developed a process that could recover metals such as rare earths while treating the water.
Penn State scientists have developed a process that could transform acid mine drainage from an environmental liability that is costly to an asset that produces rare earths and other valuable minerals.
"We are currently incurring costs just to treat the water, and in many cases, we are not even collecting all these minerals," said Sarma Pisupati, professor of energy and mineral engineering at Pe...
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