| 摘要 |
The invention concerns a device for diffusing gas microbubbles in a liquid. Said device can be used for generating microbubbles required for clarification by flotation of a liquid loaded with suspended matter. It can also be used for facilitating dissolution of the gas in the liquid. The method and the device of the invention are particularly designed to replace the air dissolving device (that is, the microbubble generator) in installations for clarification by dissolved air flotation. The device consists of a rotating gas diffuser housed in a body (2) wherein the liquid circulates. The high rotational speed of the diffuser enables to generate considerable friction between the liquid and the surface of the diffuser, thereby drawing from the diffuser very fine bubbles and dispersing them in the liquid. |
