Fluid treatment apparatus

摘要

An apparatus for separating a mixture of a less dense fluid component and a more dense fluid component, comprising: an annular chamber having a vertical axis and opening upwardly; an inlet for receiving the mixture in the bottom of the annular chamber, the inlet being configured to cause the mixture to swirl about the vertical axis as it leaves the top of the annular chamber to create a vortex extending above the chamber; a first axially aligned outlet of the annular chamber for the discharge of primarily the less dense fluid component from the vortex; and a means for introducing gas bubbles into the mixture before it leaves the chamber.