Treatment of spent nuclear fuel debris contaminated water in the Taiwan Research Reactor spent fuel pool

The cleanup of Taiwan Research Reactor (TRR) spent fuel pool is a significant milestone in the decommissioning project of TRR. Due to the water was polluted by the ruptured spent nuclear fuel rods, the fission products and actinides were required to be removed from the water prior to transport the water to the radioactive liquid wastes treatment plant. The inorganic water purification media such as aluminosilicate and polyferric sulfate (PFS) were employed as adsorbent and coagulant with respect to their radioactive resistance and efficient. Of the available information, both of the applied adsorbent and PFS were first time applied in the treatment of radioactive liquid wastes. The full scale treatment units including adsorption unit and precipitation bag were established commissioned and successful operated in the treatment of the water in TRR spent fuel pool. Accumulative 600 m3 of water in the TRR spent fuel pool contained 95 Ci of radionuclides had been treated by the combination of adsorption and coagulation processes, and had been transported to further the liquid radioactive wastes treatment plant.