| 摘要 |
<p>The rotatory bio-filter has the shape of an impeller wheel, driven by a sewage stream hitting the blades. The wheel is secured to a horizontal shaft located above the sewerage surface in the purification chamber with forced sewerage circulation. Characterized in that: The surface of the blades - plate-shaped bio-filters (2) fixed to the shaft (3) - is corrugated and the grooves are positioned radially with respect to the shaft (3) axis, parallel to the groove generating line.</p> |
