| 摘要 |
<p>The bio-aeration plant according to the present invention consists of three co-axially arranged tanks, where a downward flown partition wall (2) is disposed at the beginning of primary sedimentation external annulus (1). Said partition wall (2) and a sealed partition wall (13) define a thickening space (4), in which a scum board (3) is situated. At least one sludge piping (5) being provided with a nozzle (7) oriented in the direction of the thickening space (4) longitudinal dimension has its orifice above a bottom (6) level. At the opposite end, the sludge piping (5) is provided within a fitting manhole (8) with a by-pass piping (9) having a back-water gate (10) and a pump (11).</p> |
