If it pays for itself and then some then in 30 years you recycle the used reactors and replace them with new ones. Recycling would mean sending the spent react

If it pays for itself and then some then in 30 years you recycle the used reactors and replace them with new ones. Recycling would mean sending the spent reactor back to the manufacturer who would have the tooling and skilled labor needed to safely open the reactor and extract the spent fuel (and then dispose of it safely).