| 摘要 |
PURPOSE:To improve efficiency for treating filthy water by utilizing generated fine bubbles by providing a gas supplier and a liquid supplier both confronting the inlet of a stationary mixer and having an ejection port of gas and an ejection port of liquid respectively opening toward an axial direction of the stationary mixer for generating fine bubbles. CONSTITUTION:In an aerating appatatus, a gas supplier 2 ejects gas and generates bubbles, on one hand, a liquid supplier 3 ejects liquid. Filthy water 5 is sucked into a mixer 1 by the air-lifting effect of the bubbles. The filthy water 5 and the liquid ejected from the liquid supplier 3 rise upward through the inside of the mixer 1 while repeating collision with each other. During this stage, the bubbles are broken, therefore, fine bubbles are blown into the filthy water 5 from the outlet (upper end of the mixer). In the stationary mixer 1, plural numbers of twisted blades are arranged in a tubular passage 6 of fluid having an inlet and outlet of the fluid wherein the edges of the twisted blades cross with each other at a desired angle. |
