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    Bacteria could be the key to a safer, greener way of processing rare-earth metals

    enOctober 18, 2023

    Podcast Summary

    • Scientists discover bacteria with rare earth metal purifying abilityScientists found a bacteria that can purify rare earth metals using biosorption, a safer, less taxing method than current solvent extraction, potentially making the process more scalable, environmentally friendly, and avoiding ethical dilemmas.

      Scientists at Cornell University have discovered a bacteria named Chiwinella onidenis, which has a unique ability to purify rare earth metals through a process called biosorption. This method is considered safer and less taxing on the environment compared to the current solvent extraction process, which involves harsh chemicals and carcinogenic substances. The potential benefits of this technology include making the process for separating individual lanthanides more scalable and environmentally friendly, allowing it to be used in advanced nations with strict environmental regulations, and avoiding the environmental problems associated with extracting rare earth elements in less advanced countries. The biosorption process does not involve any harsh chemicals, making it a more sustainable and healthier alternative. This discovery could be a game-changer in the cleantech revolution, particularly for the production of electric vehicles, wind turbines, and superconductors. By using this bacteria, we can potentially reduce the environmental impact of extracting rare earth elements and avoid the ethical dilemma of ecocolonialism.

    • Exploring eco-friendly methods for extracting rare earth elements using biologyResearchers are developing biological methods, such as biosorption using Shiwenella bacterium, for extracting rare earth elements. These methods could be faster, easier to implement, and more scalable, offering a more sustainable solution to China's dominance in the global rare earth metals market.

      Researchers are exploring eco-friendly and potentially more scalable methods for extracting rare earth elements using biological approaches, such as biosorption using the Shiwenella bacterium. This process could be faster and easier to implement as it doesn't require purification and only necessitates growing biomass. Multiple research teams, including those led by Joey Cutruvo at Penn State and Cecilia Martinez Gomez at UC Berkeley, are also working on bio-based rare earth element separation. The commercial potential of these technologies is increasing due to growing interest and investment opportunities, as highlighted by the founding of Regen by graduate student Sean Medine and postdoc Alexa Schmitz. China currently dominates the global rare earth metals market but faces environmental concerns due to production methods. These new approaches could offer a more sustainable and scalable solution.

    • A new podcast for kids to understand complex financial concepts1,000,000 Bazillion podcast helps kids grasp financial concepts through storytelling, available on podcast platforms, aids parents in financial education

      "1,000,000 Bazillion" is a new podcast from Marketplace designed to help kids understand complex financial concepts through exciting and engaging storytelling. This podcast aims to answer the awkward and complex questions kids have about money, such as what a college account is, what unions are, and why the US has so much gold in Fort Knox. The podcast is available on various podcast platforms, and additional research from Buzz Barstow's team can be found on the Marketplace Tech website. By listening to "1,000,000 Bazillion," parents can help their kids make sense of the world around them and how money fits into it. This podcast provides a valuable resource for parents and kids alike, making financial education accessible and enjoyable.

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