In Colombia, industrial wastes such as rice husk and coal ashes are disposed of in uncontrolled landfills, generating high environmental impact. Researchers in Colombia and Spain explored turning these ashes into glass-ceramic materials as a way to keep them out of landfills.
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A collaboration between Battelle and Rare Earth Salts is one of several DOE projects to revive rare earth production in the U.S. Researchers are working to extract rare-earth elements from coal fly ash—which could also provide a boost to the coal industry.
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