I'm not familiar with Thorium reactors at all, so forgive me for asking: how much long-lived nuclear waste do they produce? Because we have no viable way to do with that.
They use about 1/200th amount of fuel compared to current uranium reactors, so the amount of total waste is small.
About 1 tonne thorium per one gigawatt-year.
And the wastes they produce have a far smaller portion of long lived isotopes, because the reactor controls very well what substances receive neutrons.
> I'm not familiar with Thorium reactors at all, so forgive me for asking: how much long-lived nuclear waste do they produce?
Almost none of the 250,000 year stuff. Almost entirely the 300 year stuff. Also, about 1/4 the total mass of all waste product.
Additionally, according to their documentation, the 250,000 year stuff is ultimately cycled back into the reactor to be destroyed. Most long-lived nuclear waste is fissionable, so you can just use it as more fuel, given that you can remove the fission products from the fuel easily.