| 摘要 |
PROBLEM TO BE SOLVED: To effectively prevent generation and growth of algae and bacteria caused by decomposition of organic matters included in circulated water such as cooling water and generation of slime and scale, by using photocatalytic technology. SOLUTION: This device for regenerating the circulated cooling water by cooling the fluid flowing in a cooling water system by gas-liquid contact, comprises at least a gas-liquid contact portion 12 for allowing the fluid dispersed from an upper portion to flow down to pore spaces of a filler material in accompany with gas-liquid contact, and a water storing portion 15 for storing the fluid dropping from the gas-liquid contact portion 12. One or both of a filler material surface of the gas-liquid contact portion 12 and a wall surface 151 of the water storing portion 15 are provided with photocatalyst layers, for killing bacteria and algae in the treated water W<SB>1</SB>and decomposing the organic matters. COPYRIGHT: (C)2006,JPO&NCIPI
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