Flexible Ion Adsorption Electrodes Using Natural Zeolite and Rice Husk Charcoal for FEM-EK Treatment

The Fukushima Daiichi nuclear power plant accident happened after the devastating earthquake in Pacific coastal area of Japan on 11 March 2011. After accident, radioactive materials spread out over a wide Japan. Radioactive were retained soil surfaces, causing environmental problems. Among materials, cesium (137Cs) has long half-life 30.2 years, and it remains near surface soil; therefore, is necessary to remove contaminated by 137Cs. layer inhabited areas was already removed before April 2020. However, remediation method Cs with other needs further study, as large quantity not easy preserve. Electrokinetic (EK) treatment one technologies that utilizes EK phenomena at interface between soils transferring ions from soil. We have developed new type which cathode placed an anode place inside By applying DC voltage electrodes, can be are gathered cathode, if adsorb ions, then only preserved, solving problem storing amount been working prepare effective adsorbing same time easier store handle. used natural zeolite rice husk charcoal (kuntan) this electrode, showed good potential for ions. electrode flexibility, helpful way pasture rolls. experiments conducted laboratory non-radioactive Cs; field observations needed practical applications method, well electrodes.