Abstract
To provide direction for the management of soil contamination by radioactive matter polluted from the Fukushima Daiichi nuclear power station, I summarized the previous reports related to the adsorption of soil contaminants with charcoal. In this review, I discussed 5 topics;1.e, the adsorption mechanism by charcoal, variations in adsorption by charcoal, form of 137Cs in soil, specific ways for charcoal use in the field, and combinational utilization between charcoal and phytoremediation. Based on this survey, we discussed the possibilities that charcoal can be utilized to adsorb 137Cs and remove it from soils. In combination with the addition of KCl and organic matter to the soil, removal of 137Cs by charcoal was supposed to efficiently occur. As a source of charcoal, utilization of unused bio-resources such like thinned woods or bamboo stems can attain the large scale production of charcoal which has an efficient adsorption capacity. Not only the way to apply the charcoal to the soil, but also the way to retrieve the charcoal from the soil with adsorbed 137Cs was discussed for the actual use of charcoal.
