NEW METHODS FOR NUCLEAR WASTE TREATMENT OF THE DUAL FLUID REACTOR CONCEPT

The Dual Fluid Reactor (DFR) is a new fast-neutron, high temperature, liquid fuel nuclear reactor concept which is able to utilize Used Nuclear Fuel (UNF) of previous nuclear reactor generations. The DFR features an integrated Pyroprocessing Unit (PPU) which separates transuranium elements as well as fission products when distillation of chlorinated liquid fuel is applied. Simplified calculations performed here show that the distillation process with maximum 12 stages is sufficient to obtain separation of corresponding chlorides to a very high precision level. Furthermore, insoluble metallic and non-chlorinated solid materials can be removed by simple crystallization techniques.