METAL ABSORBENT, WATER TREATMENT TANK AND WATER TREATMENT SYSTEM

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PROBLEM TO BE SOLVED : To provide a metal absorbent having high selectivity for heavy metal, particularly rare earth metal. SOLUTION : A metal absorbent according to an embodiment comprises a carrier, and a ligand connected to the carrier, with the ligand comprising one carboxyl group, one amine, and one hydroxyl functional group. COPYRIGHT : (C)2016, JPO&INPIT