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In particular, pyroprocessing (http://www.cse.anl.gov/pdfs/pyroprocessing_brochure.pdf http://www.cse.anl.gov/pdfs/pyroprocessing_brochure.pdf), which can separ
by dkbrk 12y ago
In particular, pyroprocessing (http://www.cse.anl.gov/pdfs/pyroprocessing_brochure.pdf http://www.cse.anl.gov/pdfs/pyroprocessing_brochure.pdf), which can separate out all actinides forming the bulk of nuclear waste. The actinides can continue to be used as fuel in an appropriate reactor, leaving just small amounts of short-lived (<1000 years), highly-radioactive "ash" as nuclear waste. Importantly, non-fissile isotopes such as U-238 are continually recycled so that no energy is left unextracted.
This was nearing completion in the form of the Integral Fast Reactor (http://en.wikipedia.org/wiki/Integral_fast_reactor http://en.wikipedia.org/wiki/Integral_fast_reactor) at the Argonne National Laboratory, until it was cancelled in 1994 at the behest of President Clinton and John Kerry.
The reason for its cancellation? The belief that any nuclear reprocessing is bad for "nuclear proliferation". I cannot even comprehend the mental gymnastics required to justify shutting down vital research which didn't even produce isolated plutonium when the country possessed thousands of nuclear weapons and tonnes of weapons-grade plutonium. How the fuck would this have any affect at all on "nuclear proliferation"?
- hga 11y agoNote also that civilian reactor "waste" brewed for more than a month has a mix of plutonium isotopes that makes it entirely unsuitable for practical nuclear weapons. Yeah, you can get a bit more than a squib if you're e.g. able to dissipate 100kW of heat (!) from the Pu-238 that's used for deep space probes, but the Pu-240 that made Hanford reactor plutonium unsuitable for the planned "Tall Man" gun assembly bombs strictly limits the potential yield. This is cargo cult science at best, call it an allergy to anything "nuclear". Sort of like how the government collects a huge tax on reactor "waste", used it to build the Nevada Yucca Mountain repository (temporary construction jobs are always popular, as is "free" money), but just somehow never is going to get around to actually using the place. Well, that might change when Harry Reid retires, we'll see (heh, never considered that he was roughed up so badly he lost the use of his right eye due to eeeevil corporate nuclear power types, instead of his brother or "the mob").