Researchers at Worcester Polytechnic Institute have been awarded $3.3 million from the National Science Foundation to explore ways of extracting valuable materials from industrial waste. The five-year project, led by associate professor Mingjiang Tao, will investigate whether biological processes used by organisms like diatoms and sea sponges could enable more efficient recovery of rare earth elements, silica, and other critical minerals from coal ash, red mud, and mine tailings.
Industrial waste streams currently contain substantial quantities of valuable materials that typically end up in landfills or storage facilities. According to one estimate, approximately 11 million tons of rare earth elements trapped in U.S. coal ash landfills represents $8.4 billion in value. These materials are essential for electronics, clean energy technologies, and national security applications. The current extraction methods for silicon-derived materials require significant energy input and intensive chemical processing.
The interdisciplinary team includes researchers from George Mason University, University of California San Diego, University of Massachusetts Amherst, and University at Buffalo. The project will combine expertise in biology, geochemistry, materials science, and artificial intelligence to develop lower-energy extraction methods. Researchers plan to use advanced computational modeling and AI to design specialized biomolecules that can break down silica-rich waste while recovering trapped minerals and converting remaining material into useful products.
If successful, the technology could reduce reliance on newly mined resources while strengthening domestic supplies of critical minerals. The approach aims to make industrial waste recovery economically viable for large-scale production, potentially transforming how industries manage waste streams and obtain essential materials. The project will also provide research opportunities for graduate and undergraduate students.
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