Ruthenium adsorbent in aqueous solution and method for adsorbing ruthenium in aqueous solution

摘要

An adsorbent for adsorbing, recovering, reusing, or removing ruthenium in an aqueous solution, and seawater and / or sodium ion, magnesium ion, calcium ion, chlorine ion contaminated with a radioactive element using the adsorbent Provide a method for purifying water and the like. The above problems are solved by a ruthenium adsorbent containing manganese in the form of an oxide. The adsorbent can further include at least one other transition metal element other than manganese, preferably copper. By immersing the adsorbent in water, radioactive ruthenium and the like can be adsorbed and removed to purify seawater and / or water containing sodium ions, magnesium ions, calcium ions, chlorine ions, and the like.