Management plan for the intermediate level liquid waste from the fission ⁹⁹Mo production process in the KIJANG research reactor

The KIJANG Research Reactor (KJRR) is a radioisotope production reactor and one of its main purposes is producing fission ⁹⁹Mo, which is the most widely used medical radioisotope. The waste generation from the fission ⁹⁹Mo production process is inevitable and disposal plan for the radioactive wastes should be set up for mass production of the fission ⁹⁹Mo. KAERI has developed the ⁹⁹Mo production process and the production of ⁹⁹Mo will be followed soon after the criticality of the KJRR. The ILLW in the production process has been a critical issue, but the treatment process of the ILLW is not developed yet. This paper introduces the treatment plan of the ILLW. KAERI has selected the conventional cementation method and development study was started last year. The development plan shows that the treatment facility could be operable within 4⁓10 years after start of the production.