| 摘要 |
<p>The invention relates to a device for carrying out a method for cleaning waste-water by means of activated sludge. According to said method, the waste-water to be treated is fed first into an activated-sludge tank (1), which can be ventilated, and then into a sedimentation tank (2) in which the sludge and clarified water are separated. After this, the sludge is fed back into the activated-sludge tank (1) and the clarified water withdrawn. In the sedimentation tank, operating cycles take place several times a day during which the sludge is recombined with the clarified water (stirring phase R). The activated-sludge tank (1) and the sedimentation tank (2) are connected to interconnected receptacles by means of openings (3, 4) provided for in the floor area of the sedimentation tank (2) and near the water level. In addition, the invention provides for devices for simultaneously transporting the tank contents from the activated-sludge tank (1) through the opening(s) (3) in the floor area and from the sedimentation tank (2) through the opening(s) (4) near the water level.</p> |
