Table 3. Removal efficiencies (%) for I and 125I ions.
| Measured (Loaded) amounts | Removal efficiency (%) | |
| as I ion (ppb) | as 125I (Bq/kg) | |
| 3891.0 (4000) | 0 | 84.6 |
| 130.0 (100) | 0 | 91.7 |
| #0.0000197 | 14993.0 (15000) | 99.4 |
| #0.00000351 | 1788.0 (1500) | 99.3 |
| #0.000000196 | 146.3 (150) | 99.5* |
Removal efficiency (%) = (1−[A]/[B])×100 according to [38]. [A], [B]: concentrations of I and 125I solutions after and before filtration. Each solution was filtered only, without electrolysis. *: [A] values used to calculate removal efficiency were below the detection limit. #: equivalent ppb values calculated from the radioactivities loaded. Values within parentheses were prepared and loaded amounts or radioactivities of iodine.