Even when properly tained, fission byproducts which are no longer uful gee radioactive waste, which must be properly dispod of. Spent nuclear fuel that is retly removed from a nuclear reactor will gee large amounts of decay heat which will require pumped water cooling for a year or more to prevent overheating. In addition, material expod to ron radiatio in nuclear reaay bee radioactive in its ht, or bee inated with nuclear waste. Additionally, toxic or dangerous chemicals may be ud as part of the plant''s operation, which must be properly handled and dispod of.
The nuclear plants to be built will likely be Geion III or III+ designs, and a few such are already iion in Japan. Geion IV reactors would have eveer improvements in safety. The new designs are expected to be passively safe or nearly so, and perhaps even ily safe (as in the PBMR designs).
Some improvements made (not all in all designs) are having three ts of emergency diel geors and associated emergency core cooling systems rather than just one pair, having quench tanks (large coolant-filled tanks) above the core that open into it automatically, having a double tai (one tai building inside another), etc.
Even when properly tained, fission byproducts which are no longer uful gee radioactive waste, which must be properly dispod of. Spent nuclear fuel that is retly removed from a nuclear reactor will gee large amounts of decay heat which will require pumped water cooling for a year or more to prevent overheating. In addition, material expod to ron radiatio in nuclear reaay bee radioactive in its ht, or bee inated with nuclear waste. Additionally, toxic or dangerous chemicals may be ud as part of the plant''s operation, which must be properly handled and dispod of.
The nuclear plants to be built will likely be Geion III or III+ designs, and a few such are already iion in Japan. Geion IV reactors would have eveer improvements in safety. The new designs are expected to be passively safe or nearly so, and perhaps even ily safe (as in the PBMR designs).
Some improvements made (not all in all designs) are having three ts of emergency diel geors and associated emergency core cooling systems rather than just one pair, having quench tanks (large coolant-filled tanks) above the core that open into it automatically, having a double tai (one tai building inside another), etc.