| 摘要 |
PROBLEM TO BE SOLVED: To provide a radium adsorbent excellent in radium adsorption performance and further capable of repeating use, the production method and a treating method of radium-containing waste water using the adsorbent. SOLUTION: The radium adsorbent consists of strong acidic cation exchange resin, moist oxides of titanium and zirconium, and the most oxides of titanium and zirconium are chemically bonded to the strong acidic cation exchange resin. Thus, the radium adsorbent has high radium adsorption performance and is stable to a physical action such as air washing, and besides, radium can be desorbed while the moist oxides of titanium and zirconium are held, and the adsorbent shows excellent radium adsorption performance even after a radium desorbing treatment, then the adsorbent can be used repeatedly. |
