Radioactive cesium adsorbent and method for purifying radioactive contaminated water using the same

摘要

PROBLEM TO BE SOLVED: To provide a radioactive cesium adsorbing material by which the water contaminated by radioactive cesium can efficiently be cleaned and which has high productivity and to provide a method for cleaning radioactively contaminated water by using the radioactive cesium adsorbing material.SOLUTION: The radioactive cesium adsorbing material and the method for cleaning radioactively contaminated water by using the radioactive cesium adsorbing material are disclosed. The radioactive cesium adsorbing material is obtained by imparting Prussian blue to a pulp-fibrous base material. The contaminated water containing radioactive cesium can efficiently be cleaned by the radioactive cesium adsorbing material. For example, even when the contaminated water, which is contained in the soil contaminated with the radioactive cesium, is cleaned, the radioactive cesium adsorbing material can efficiently clean the contaminated water while being hardly clogged. Discarded resources such as used paper can be utilized in the radioactive cesium adsorbing material and consequently the production efficiency thereof can be made higher and the mass production thereof can be applied.