VOLATILITY PILOT PLANT--HAZARDS REVIEW REPORT

The ORNL Fluoride Volatility process for the dissolution of Zr-U fuel elements is described, and possible hazards and their control are discussed. The maximum credible accident is thought to be the destruction of cell off-gas filters by unreacted HF from the process or from the conversion of traces of unreacted F/sub 2/ to HF. A system for removing traces of HF or F/sub 2/ from the cell off-gas will be installed. The fast release of HF or F/sub 2/ at the outdoor supply stations is also considered credible. The use of recommended procedures for handling HF and F/sub 2/ as learned from the literature-and experience should minimize the possibility of such releases. (auth)