| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a necessary amount of ozone water of precisely controlled concentration at a required time. SOLUTION: The method for manufacturing ozone water of specified concentration by dissolving an ozone-containing gas in feedwater comprises a water supply process to fill a vessel with a specific amount of feedwater leaving an upper space empty, a recycle process to return feedwater discharged from the vessel to the vessel through an aspirator, an ozone gas introducing process to introduce the above ozone-containing gas of specified concentration into the vessel by suction force of the aspirator in the above recycle process, while exhausting a gas present in the above upper space of the vessel through a gas exhaust line, making use of a gas feed pipeline that connects a gas inlet of the above aspirator and an ozone gas generator as well as a pipeline that connects the gas feed pipeline and the above gas exhaust line, and an ozone water withdrawal process to take a gas-liquid mixture out of the vessel after continuing the ozone gas introducing process for a specified period. COPYRIGHT: (C)2005,JPO&NCIPI
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