Unfortunately, the ion-exchange technique traps many more non-radioactive iron ions than radioactive cobalt ones.

The practices verify that concrete has function of shielding strong ray. Thus the construction difficult issue how to efficiently solve cobalt 60 with strong radioactivity in construction is overcome.

He thinks that the new polymer could also be used to decontaminate decommissioned nuclear power-stations where residual radioactive cobalt in pipes remains a problem.