To provide a method and apparatus for producing weakly acidic sterilizing water which consists mainly of hypochlorous acid or chlorous acid and has an appropriate dissolved carbon dioxide gas content by dissolving the carbon dioxide gas into the sterilizing water.
The sterilizing water which is a diluted aqueous solution of the hypochlorous acid or the chlorous acid flows dividedly into at least two conduits. While through one conduit the sterilizing water is injected or sprinkled into a pressure vessel 13 filled with the carbon dioxide gas, through the other conduit the sterilizing water is calmly conveyed into the pressure vessel. The carbon dioxide gas content dissolved in the sterilizing water is controlled by controlling the amount of the sterilizing water flowing through each conduit. The method thus controls the dissolved carbon dioxide gas content by freely controlling the amount of the sterilizing water flow both in the conduit for injection and in the conduit for calm conveyance. The method thereby functions as an accumulator and, at the same time, dissolves the appropriate amount of the carbon dioxide gas required for stabilizing pH.
COPYRIGHT: (C)2007,JPO&INPIT
Yoshinori Ota
Teranishi Hiroshi
Tatsuo Okazaki
| JP2004337582A | ||||
| JP10024294A |