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Sep 8, 2014

Hitachi developing reactor that burns nuclear waste

Posted by in category: nuclear energy

By — Gizmag

Hitachi is developing a new reactor that burns transuranium elements, such as those produc...

The problem with nuclear waste is that it needs to be stored for many thousands of years before it’s safe, which is a tricky commitment for even the most stable civilization. To make this situation a bit more manageable, Hitachi, in partnership with MIT, the University of Michigan, and the University of California, Berkeley, is working on new reactor designs that use transuranic nuclear waste for fuel; leaving behind only short-lived radioactive elements.

In popular imagination, nuclear waste is a wildly radioactive goo that glows like the back end of a lightning bug. But in real life, the real problem of nuclear waste isn’t the “hot” stuff, but the mildly radioactive elements with atomic numbers greater than 92. That’s because highly radioactive elements have short half lives. That is, they burn themselves out very quickly – sometimes in a matter of minutes or even seconds.

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