Bubble liquid concentration device, bubble liquid concentration method, and high-density fine bubble liquid generation device

摘要

The purpose of the present invention is to provide: a bubble liquid concentration device capable of obtaining a liquid including a high concentration of bubbles; a bubble liquid concentration method; a device for generating a highly dense fine bubble liquid which uses said bubble liquid concentration device; and a method for generating a highly dense fine bubble liquid. This bubble liquid concentration device uses a separation membrane 2 to concentrate bubbles present in a supply liquid 7. The bubble liquid concentration device is characterized by having a structure which allows the permeation of a permeate to the side of one surface of the separation membrane 2, while the supply liquid 7 flows along another surface of the separation membrane 2. The bubble liquid concentration device is preferably used when concentrating a liquid which is present in the supply liquid 7, and which includes bubbles having a diameter of less than 1 µm.