| 摘要 |
PROBLEM TO BE SOLVED: To provide an adsorbing agent which can remove humic materials effectively, and a method for removing the humic materials. SOLUTION: The humic material adsorbing agent is mainly composed of a metal-supporting silicagel made by carrying one or more kinds of metals selected from among group II-metal elements and transition metal elements on silicagel. The humic material adsorbing agent and water containing humic materials are subjected to contact treatment to adsorb the humic materials by the humic material adsorbing agent, thereby removing the humic materials from the water. A humic adsorbing agent of 20 mg prepared by mixing and drying 36% FeCl<SB>3</SB>aqueous solution of 75g and spherical silicagel of 75g, and a humic acid aqueous solution (7.6 mg/l) of 10 ml are put into a container, and then the container is capped. After vigorously shaking the container, the content is filtered to obtain filtrate. The humic acid adsorption rate (%) measured from the filtrate reaches 97%. COPYRIGHT: (C)2004,JPO
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