| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a water cleaning system capable of maintaining decomposition action of photocatalyst for a long period of time without depositing algae to the surface whereon photocatalyst is provided even using the system continuously, and a water cleaning method. <P>SOLUTION: The water cleaning system 1 has a water cleaning means 3 provided with a photocatalyst on the surface, a float 2 for holding the water cleaning means, a lift means 12 for lifting and lowering the water cleaning means 3 above and below water. The float means 12 hoists and lowers the water cleaning means 3 above and below the water surface, thereby preventing the deposition of algae on the surface whereon photocatalyst is provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
