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New technologies using zeolite composite fibers to prevent radioactive cesium pollution in Fukushima rivers



The authors have developed and applied new technologies using zeolite composite fibers to prevent radioactive Cs pollution of water in Fukushima, Japan.

During approximately four years in the area, decontamination has been conducted to reduce radioactive cesium (Cs) in the field. However, water contaminated with extra-diluted radioactive Cs has prevented residence within about 30 km of the damaged nuclear facilities. Great efforts at decontamination work should be undertaken to alleviate social anxiety and to produce a safe society in Fukushima.

Decontamination using fiber-like decontamination adsorbents was examined in actual use for radioactive Cs in water in Date city in 2013 and in Okuma town in 2015.

This report describes preparation and properties of the fiber-like decontamination adsorbents. Furthermore, this report is the first describing results of radioactive Cs decontamination using a fiber-like adsorbent for water with extra-low-level concentrations of radionuclides.

Even four years after the accident, results strongly suggest the decontamination still distributed in Fukushima area, depending on the distance of the nuclear power plant. Evidence indicates the importance of preventing extension of radioactive Cs further downstream to human residential areas.

June 12, 2016 - Posted by | Fukushima 2016 | , , ,

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