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Coal Ash

All articles tagged with #coal ash

science-and-technology1 year ago•5 min saved

US Coal Ash Revealed as Rich Source of Rare Earth Elements

A study by The University of Texas at Austin reveals that coal ash in the U.S. contains up to 11 million tons of rare earth elements, potentially boosting domestic supply without new mining. This discovery could reduce reliance on imports, mainly from China, and transform coal ash from waste to a valuable resource. The research highlights the potential for extracting these elements from coal ash, which is abundant and already processed, though challenges remain in developing the necessary extraction infrastructure.

via Phys.org|

#coal-ash #environmental-impact #geopolitics

science-and-technology2 years ago•5 min saved

Alien Ocean Balls: Harvard Prof's Theory Debunked as Industrial Waste

A Harvard professor's claim that metal spherules found in the ocean were of alien origin has been challenged by a scientist who suggests they may be industrial waste from coal burning. The professor had previously suggested that the spherules were left behind by a meteorite, but an analysis of their chemical composition indicates they are consistent with coal ash. The professor has disputed this claim, stating that the spherules and coal ash have different compositions and that further analysis is needed to determine their nature.

via Business Insider|

#alien-technology #coal-ash #harvard-professor

environment2 years ago•5 min saved

EPA Implements Stricter Regulations for Coal Ash Landfills and Power Plants.

The Biden administration has proposed expanding the number of coal waste dumps that would be subject to environmental oversight, a decade after a string of toxic disasters from such landfills flooded valleys and polluted rivers in southern states. The Environmental Protection Agency now wants to end exemptions that left about a quarter of the roughly 1,000 coal ash dumps nationwide exempt from federal regulation. Coal ash contains toxic substances such as mercury, cadmium, chromium and arsenic, and its pollution often hurts poor and minority communities near dump sites that the EPA says is already “overburdened by pollution.”

via The Washington Post|

#biden-administration #coal-ash #environment