Ultra-fine bubble liquid generation method

Abstract

To produce an ultra-fine bubble (UFB) liquid with a high UFB concentration by using a liquid hardly produces the UFB.SOLUTION: A UFB liquid production method according to the present invention includes the steps of: preparing a UFB stock solution containing UFB (steps S11-S12); and mixing the UFB stock solution with a target liquid having a higher electrical conductivity and a lower UFB concentration than the UFB stock solution to produce a UFB liquid having an electrical conductivity of 0.02 S / m or more (step S13). Furthermore, 24 hours after completion of the step S13, the UFB liquid has an UFB concentration of 30 million particles / ml or more. This UFB liquid production method makes it possible to produce the UFB liquid with the high UFB concentration using the liquid with high electrical conductivity which hardly produces the UFB.SELECTED DRAWING: Figure 1

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