| 摘要 |
PROBLEM TO BE SOLVED: To provide a manganese-containing water treatment technology which can treat manganese-containing water at a high flux without adding an additional device to an existing drinking water treatment plant. SOLUTION: A manganese catalyst 15 having a specific gravity of 3-4 and a particle diameter of 0.3-2.0 mm, and an oxidizing agent 14 are added to manganese-containing raw water to agitate them in a rapid agitation tank 11 or the like, which oxidizes soluble manganese contained in the raw water, and strips oxidized insoluble manganese formed on the surface of the manganese catalyst 15. The manganese catalyst 15 is settled and precipitated in a slow mixing tank 12 or the like to be returned to the rapid agitation tank 11. The supernatant water of the slow mixing tank 12 is introduced into a ceramic membrane filter 13 or the like to remove turbid matter and the oxidized insoluble manganese. COPYRIGHT: (C)2006,JPO&NCIPI
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