Anordning för bildande av små bubblor i en vätska

摘要

The invention relates to a method and apparatus for forming small gas bubbles in liquid, and for creating effective material transfer between gas and liquid in large tanks or basins. Part of the liquid is made to flow through a stationary aerator unit (1) where the pumping member (2) sets to motion the liquid flowing in the flow channel, and simultaneously gas is fed into the liquid through small apertures (5), with a diameter of less than 2 mm, or through a porous surface, provided at the bottom (4) of the flow channel subsequently after the pumping member.