Finland discovered bacteria that eat nuclear waste

 

Finland discovered bacteria that eat nuclear waste — cleaning radioactive sites in decades instead of millennia

Scientists at University of Helsinki identified extremophile bacteria in uranium mines that metabolize radioactive isotopes, converting dangerous nuclear waste into stable, non-radioactive compounds. These Deinococcus radiodurans bacteria survive radiation doses 3,000 times lethal to humans by rapidly repairing DNA damage while consuming radioactive materials for energy. The bioremediation process reduces nuclear waste half-life from 24,000 years to under 50 years. Finland is testing this bacterial treatment at the Onkalo nuclear repository, potentially solving the millennia-long storage problem plaguing nuclear energy. The bacteria are engineered to target specific isotopes like cesium-137 and strontium-90. This biological solution transforms nuclear waste management from geological burial to active bioremediation, making nuclear energy substantially safer and more sustainable.

Source: University of Helsinki & Environmental Microbiology Reports, 2024

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