a personal comment from someone on the site
As for spent fuel reprosessing- its not a lesser amount of waste at the end of the reprocess- its tons more. highly active and chemically toxic from the organic extraction process. the best is to consolidate and store/monitor/retrieve(MRS) when needed.
A quote from some nrc report - posted previously...
The use of MOX fuel has never been considered economical enough to warrant reprocessing, and large-scale U.S. breeder reactor program was eliminated during the early 1980s during the Administration of President Reagan who was a strong supporter of nuclear power plants.
I’ve only just started my reprocessing “studies” but from what I’ve read so far the fuel doesn’t have to be mixed with plutonium to create MOX in can be just simply used as fresh fuel.
I searched the NRC – briefly – I was unable to find a whole lot in the way of text for reprocessing… my guess is because the US isn’t involved that much with reprocessing at this time… (or I could just not have spent enough time looking there.)
I then decided it was probably more logical to gather info from locations that do in fact reprocess fuel currently. (from the horse’s mouth as it were)
Institute of Electrical Engineers ( UK) January 2003
“Reprocessing effectively reduces the volume of waste and limits the need to mine new supplies of uranium, thereby extending the lifetime of finite resources.
When the uranium has been separated it can be made into fresh fuel
or mixed with
the plutonium to produce a ceramic Mixed Oxide (MOX) fuel. Both of these types of fuel can then be used in conventional reactors.
If the fuel were not reprocessed, it would need to be stored and then disposed of - 100% of the fuel, rather than just 3%, would then become waste.”
This is from a chart at the end of the same article.
"Reprocessing 1 ton of used nuclear fuel produces typically:
0.1 cubic metres of high level waste, containing nearly 99% of the radioactivity in the used fuel;
1 cubic metre of intermediate level waste, containing nearly 1% of the radioactivity in the used fuel;
4 cubic metres of low level waste containing 0.001% of the radioactivity in the used fuel."