Diffusor pump having diffusor blades

摘要

The present invention provides a novel diffusor for a diffusor pump. The diffusor comprises a body having a side portion and a plurality of blades placed on the side portion of the body so as to be along a flow direction of a liquid, each of the plural blades including at least one aperture so as to divided into a plurality of parts. The body has a cylindrical shape. The blade is divided into first and second parts by a single aperture. The first part of the blade has a solidity in the range from 0.75 to 1.25 when the treating liquid flows from the first part to the second part.