| 摘要 |
<p>Aerator rotor for use in effluent or waste water treatment plants, comprises >=1 set of vanes mounted on, and in a plane perpendicular to, a shaft, which is parallel to the water surface, such that the vanes are partly immersed, a perforated element being provided between >=2 adjacent vanes and forming an air cage extending, at least partially, along the immersed part of each vane.</p> |
