Reduction of Environmental Impact of Fixed Bed Nuclear Reactor (FBNR) Waste
Farhang Sefidvash *
Baha’i Institute for Higher Education (BIHE), Tehran, Iran
Ehsan Amozegar
Baha’i Institute for Higher Education (BIHE), Tehran, Iran
Sumer Sahin
ATILIM University, Ankara, Turkey
Do Thi Nguyet Minh
Electric Power University (EPU), Hanoi, Vietnam
Ha Van Thong
Electric Power University (EPU), Hanoi, Vietnam
*Author to whom correspondence should be addressed.
Abstract
The Fix Bed Nuclear Reactor (FBNR) is a pressurized water reactor but its fuel elements are made of Tristructural-Isotropic (TRISO) type particles. Its spent fuel elements may be used as a source of radiation for irradiation purposes in medicine, industry and agriculture. Thereafter, the waste treatment problem is the same as for the fourth generation high-temperature nuclear reactors using TRISO particles. It is found that using the proposed simplified TRISO particles increases the reactivity of the reactor, resulting in higher fuel burnup; while in recycling of its spent fuel, the amount of radioactive carbon is reduced by 57%.
Keywords: FBNR, waste treatment, environmental impact, TRISO fuel, INPRO