| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a decomposing method of organic matter by using a photocatalyst for decomposition of org. matter by which the purification efficiency by the photocatalyst is improved, the time required for purification can be largely decreased even when a light source of small electric power is used, and the device can be reduced in size. SOLUTION: A transparent synthetic quartz glass tube 20 is filled with a photocatalyst 2 for decomposition of org. matter, and while the synthetic quartz glass tube 20 is irradiated with UV rays through its outer face, a liquid 22 to be treated containing harmful org. matter or the like is passed through the glass tube 20 to decompose the org. matter. In this method, before the liquid 22 is passed through the glass tube 20, hydrogen peroxide water 25 is added to the liquid and ozone 26 is blown into the liquid.</p> |
