FINE BUBBLE REMOVING METHOD AND FINE BUBBLE REMOVING DEVICE, AND BUBBLE DIAMETER DISTRIBUTION MEASURING METHOD AND BUBBLE DIAMETER DISTRIBUTION MEASURING DEVICE

摘要

According to the present invention, fine bubbles in a target liquid L are reduced by irradiating the target liquid L including the fine bubbles with ultrasonic waves from an ultrasonic wave irradiation device 102. The fine bubbles in the target liquid L can be effectively reduced by irradiating the target liquid L with the ultrasonic waves. Since small-diameter bubbles such as fine bubbles in particular can be reduced using ultrasonic waves, fine bubbles in the target liquid L can be reduced with excellent efficiency.