| 摘要 |
<p>The assembly for the biological treatment of sewage has at least one primary settling chamber (10) and at least one settling chamber (12), with an immersed pump (20) for the sewage transport together with an aerator (38). The pump outlet opens into a cylindrical rising pipe (22), containing a valve ball (24). A valve seat (26) is at the upper end of the rising pipe, leading into a sludge backflow channel (28) into the primary chamber below its minimum water level. A side channel (34) for clear water branches from the rising pipe, leading to a buffer container (36) and an integrated clear water outflow (18). The settling chamber has an open catch dish (42) under the minimum water level, with a channel link (44) to the sludge backflow.</p> |
