METHOD FOR SYNTHESIZING ADSORBENT FOR ADSORBING AND RECOVERING GOLD AND DISCHARGED WATER TREATMENT

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PROBLEM TO BE SOLVED : To obtain an adsorbent capable of adsorbing and recovering useful rare metals, especially gold, without having an issue of environmental pollution and excellent in adsorbing and recovering performance. SOLUTION : The subject method for synthesizing the adsorbent capable of adsorbing and recovering useful rare metals dissolved in a solution comprises forming reaction active points on a polymer substrate, then forming graft chains by polymerizing a reactive monomer by a graft polymerization method to introduce chelate-forming groups. In this method, the polymer substrate is produced from a woven fabric, non-woven fabric, film, hollow fiber membrane or yarn containing a polyolefin-based fiber such as of a polyethylene, polypropylene, as a raw material, and the reactive monomer is a vinyl reactive monomer selected from the group consisting of allylamine, glycidyl methacrylate, glycidyl acrylate or their mixture.