Study on Removal of Artificial Radionuclide (I-131) in Water
물속의 인공방사성핵종(I-131) 제거율 연구

Gwanjo Jeong, Kyungwoo Lee, Bogsoon Kim, Suwon Lee, Jonggyu Lee, Ami Koo
2014 Journal of Korean Society of Environmental Engineers  
Iodine-131, an artificial radionuclide, mostly exists as iodide ion ( 131 I -) and iodate ion ( 131 IO3 -) in the water, and When a short time contacted, it could not be removed by poly aluminum chloride (PACl) and powdered activated carbon (PAC). Although the removal rate of iodine-131 was not related with turbidity of raw water, it showed linear relationship with contact time with PAC. With the mixture of PACl (24 mg/L or more) and PAC (40 mg/L or more), about 40% of iodine-131 could be
more » ... -131 could be removed. Iodine-131 could be removed little by sand filtration, but approximately 100% by granular activated carbon (GAC), both virgin-GAC and spent-GAC. Microfiltration process could remove little iodine-131 while reverse osmosis process could remove about 92% of iodine-131.
doi:10.4491/ksee.2014.36.11.747 fatcat:ndleda7o35cnxbhwft35olzdcy