Fine bubble elimination method and fine bubble elimination device, and bubble size distribution measuring method and bubble size distribution measuring device
AssigneesShimadzu Corporation, National Institute of Technology and Evaluation, Fine Bubble Industries Association
InventorsSeika OHUCHI, Mitsuru TANAKA, Haruo SHIMAOKA
Life of this patent
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Abstract
By irradiating target liquid L containing fine bubbles with ultrasonic waves from an ultrasonic irradiation device 102, the fine bubbles in the target liquid L is reduced. By irradiating the target liquid L with ultrasonic waves, fine bubbles in the target liquid L can be reduced effectively. By using ultrasonic waves, bubbles with small diameters, particularly fine bubbles, can be effectively reduced, so that fine bubbles in the target liquid L can be efficiently reduced.
Claims13
A fine bubble elimination method comprising an ultrasonic irradiation step of irradiating target liquid containing ultrafine bubbles having a bubble diameter of less than 1 μm with an ultrasonic wave from an ultrasonic irradiation device to reduce the ultrafine bubbles in the target liquid,
- wherein the ultrasonic irradiation step irradiates target liquid with an ultrasonic wave having a frequency of 430 kHz or more.
(canceled)
A fine bubble elimination device comprising an ultrasonic irradiation device that irradiates target liquid containing ultrafine bubbles having a bubble diameter of less than 1 μm with an ultrasonic wave to reduce the ultrafine bubbles in the target liquid,
- wherein the ultrasonic irradiation device irradiates target liquid with an ultrasonic wave having a frequency of 430 kHz or more.
Dependencies are inferred from the claim text.