Transactions of the Atomic Energy Society of Japan
Removal of Radioactive Cesium from Surface Soils Solidified Using Polyion Complex
Rapid Communication for Decontamination Test at Iitate-mura in Fukushima Prefecture
Hirochika NAGANAWANoriyuki KUMAZAWAHiroshi SAITOHNobuyuki YANASEHisayoshi MITAMURATetsushi NAGANOKaoru KASHIMATatsuya FUKUDAZenko YOSHIDAShun-ichi TANAKA
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JOURNALS FREE ACCESS Advance online publication

Article ID: J11.017

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Abstract

  We tried the decontamination of surface soils for three types of agricultural land at Nagadoro district of Iitate-mura (village) in Fukushima Prefecture, which is highly contaminated by deposits of radionuclides from the plume released from the Fukushima Daiichi nuclear power plant. The decontamination method consisted of the peeling of surface soils solidified using a polyion complex, which was formed from a salt solution of polycations and polyanions. Two types of polyion complex solution were applied to an upland field in a plastic greenhouse, a pasture, and a paddy field. The decontamination efficiency of the surface soils reached 90%, and dust release was effectively suppressed during the removal of surface soils.

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© 2011 Atomic Energy Society of Japan
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