| 摘要 |
PURPOSE:To perform sterilization within a short time by obtaining large sterilizing power by generating ozone using oxygen gas as raw material gas and subsequently mixing inert gas such as nitrogen gas with the ozone-containing oxygen gas before use. CONSTITUTION:As raw material gas, a gaseous mixture 13 prepared by mixing oxygen gas 11 and inert gas 12, for example, nitrogen gas is used. The raw material gas wherein the oxygen gas 11 and the nitrogen gas are mixed is sent to an ozonizer 14 and ozone gas is generated by silent discharge. The sterilizing gas containing the ozone gas thus generated is sent to a sterilizing chamber 16 in which an object to be sterilized is received. Therefore, the concn. of oxygen in atmosphere to be sterilized is lowered by the inert gas 12 and the oxidation reaction by the ozone gas is kept. By this method, large sterilizing power can be obtained. |
