| 摘要 |
<p>1. A scheme of connections for sewage treatment units, composed of a raw sewage inflow tank, a fermentation reactor with a blower, measurement-control wells and sludge beds, characterised in that it has a secondary sedimentation tank (4), incorporated between a fermentation reactor (2) and sludge beds (5) via a remote control valve (7), but the secondary sedimentation tank is connected with the fermentation reactor (2) via a remote control valve (8) and with a raw sewage inflow tank via a remote control valve (9).<IMAGE></p> |
