INVESTIGATING CONDITIONS FOR MANUFACTURING UNIFORM SIMULATED HIGH-LEVEL WASTE GRANULES USING A BATCH TYPE ROTARY KILN

摘要

We have been researching production methods for ahigh-level waste (HLW) granule, and methods for the safestorage of this granule until minor actinide partitioningand transmutation (MA P&T) technology can bedeveloped and applied to the stored HLW. We selected arotary kiln system to produce the HLW granule fromhigh-level liquid waste (HLLW). HLLW injected into therotary kiln went through drying, calcination, andgranulation processes, until it became HLW granules.Each of the processes was investigated via a batch typerotary kiln device using simulated HLLW. In this research,we identified optimal temperature conditions, and foundthat a peeling and grinding mechanism was necessarybetween the drying and calcination processes, and that atleast three independent heaters were necessary for therotary kiln system.