FUEL-CYCLE SCENARIO TO REDUCE RADIOACTIVE WASTE FROM LIGHT-WATER REACTOR

It is important to reduce the amount of trans-uranium (TRU) produced from existing nuclear power plants realize sustainable energy since some TRU nuclides remain for a long time and have high radioactivity radiotoxicity. One promising solutions transmute those with lesser radiotoxicity in reactors. In current scheme, are transmuted fast reactors and/or accelerator-driven-systems, however, this scenario seems unpromising Japan: after Fukushima Daiichi accident, it required production light-water previous studies, concept FORSETI was investigated, nuclear-fuel cycle simulation code ATRUNCYS developed study low scenario. The consists two types fuels: 1) UO 2 fuels high-assay low-enriched-uranium, 2) MOX highly fissile concentrated plutonium reprocessed FORSETI-UO fuels. paper focuses on following scenarios: a) once-recycled fuel design, b) concept. scenarios were compared by using where studies showed that amount, radioactivity, resulting waste can be decreased concept: case 1), fuel; 2), fission rate increased neutron-capture reactions 240 Pu 241