Year
2010
Abstract
A systems analysis, based on previous in-depth studies, 19 was made to develop an advanced used fuel recycling approach in which over 90% of the fuel components and cladding material are recovered and reused. This can minimize the waste requiring disposition to a geologic repository while enabling sustained nuclear energy and recovery of vital materials. The analysis assumed that: (1) continuing delays will occur in locating a site and licensing a geologic repository in the United States; (2) continued storage of used fuel at reactor sites or central storage locations is not a permanent solution; and (3) public perception is that the unresolved used fuel disposal problem is a deterrent to the continuation and expansion of the use of nuclear energy. The practical solution recommended is to move forward with a parallel approach to (1) deployment of industrialized recycling of used fuels which is a multi-decade process, and (2) focused R&D to recover the re-usable components and minimize residual waste. This approach would use concepts for proliferationresistant recycle facilities, processing oldest fuels first, and incorporating more-complete recycling of used fuel components. In addition to uranium and transuranic actinide recycle, the R&D would be focused on recovery and re-use of valuable components such as noble metals, lighter lanthanide elements, xenon gas, and zirconium from cladding. While the eventual need for a geologic repository will remain, the methods recommended can delay the need, minimize the capacity required, and significantly reduce the hazard of the wastes disposed. With no decision, the path forward for nuclear waste (used fuels) disposal remains uncertain, with many diverse technologies being considered. However, a decision to take advantage of proliferation resistant facility design, processing aged fuels, and incorporation of the concepts of nearcomplete recycling will provide the focus and path forward to a practical solution to the problem of nuclear waste disposal.