Contaminated water purification system equipped with fine bubble generating device and fine bubble generating device

摘要

A micro bubble generating device capable of generating fine bubbles from contaminated water is provided.The fine bubble generating apparatus 10 according to the present invention includes a liquid inflow path 11 into which a pressurized liquid flows, a discharge path 12 for discharging the generated fine bubbles and liquid, a liquid inflow path 11 and a discharge path 12 And has a throat portion 13 having a narrow flow passage area from the liquid inflow passage 11 and the discharge passage 12 and a gas supply passage 14 for supplying a gas into the liquid inflow passage 11 or the throat portion 13. The gas supply passage 14 The outlet end 143 opens toward the downstream side of the liquid flow.