MICROBUBBLE GENERATING DEVICE AND CONTAMINATED WATER PURIFYING SYSTEM PROVIDED WITH MICROBUBBLE GENERATING DEVICE

摘要

Provided is a microbubble generating device that is capable of generating microbubbles from contaminated water. The microbubble generating device (10) of the present invention is provided with: a liquid inflow channel (11) into which pressurized liquid flows; a discharge channel (12) that discharges microbubbles that are generated and liquid; a throat part (13) that connects the liquid inflow channel (11) and the discharge channel (12) and that has a narrower flow channel area than the liquid inflow channel (11) and the discharge channel (12); and a gas supply channel (14) that supplies gas into the liquid inflow channel (11) or the throat part (13). An exit end (143) of the gas supply channel (14) opens in the direction of the downstream side of the flow of the liquid.