Theoretically yes, but you seriously complicate the storage of nuclear materials when you start packing it all together and trying to create heat or keep it at any elevated temperature for harvesting heat. That is basically the entire concept of a nuclear reactor, except now its either a random mash of nuclear stuff unless you spend a ton of money categorizing and actively monitoring the state of all the material put in, but with a less robust cooling system than an actual nuke plant and far lower output.
With the expenses involved with all of that, it would probably be better to just build multiple geothermal plants instead and you don't have to worry about nuclear materials at all for similar power output.
To me the only 2 economically feasible strategies I see with high level nuclear waste is recycling with some sort of breeder reactor program, or dumping it in a deep stable hole that is trapped away from any water tables on the order of 100,000 years or more, by which point it will just be a uniquely rich and and diverse nuclear mineral deposit.
With a breeder reactor though and all the supporting nuclear reprocessing facilities, even though it would be a lot of work and money, it would be recovering the vast majority of potential energy from previously mined and refined nuclear materials that you are talking about recovering heat from, and in a far more controlled manner that allows us to just chuck the material into pretty much any other reactor without any significant modifications.
With the expenses involved with all of that, it would probably be better to just build multiple geothermal plants instead and you don't have to worry about nuclear materials at all for similar power output.
To me the only 2 economically feasible strategies I see with high level nuclear waste is recycling with some sort of breeder reactor program, or dumping it in a deep stable hole that is trapped away from any water tables on the order of 100,000 years or more, by which point it will just be a uniquely rich and and diverse nuclear mineral deposit.
With a breeder reactor though and all the supporting nuclear reprocessing facilities, even though it would be a lot of work and money, it would be recovering the vast majority of potential energy from previously mined and refined nuclear materials that you are talking about recovering heat from, and in a far more controlled manner that allows us to just chuck the material into pretty much any other reactor without any significant modifications.