| 摘要 |
<p>In an aerobic, mechanical-biological device for the purification of media such as sewage, fresh sludge and sanitary sludge, comprising at least one contact aerator (3; 19) which is partly immersed in the medium in a container (1) and rotates about a longitudinal axis (2), each contact aerator is detachably braced against the container (1) by means of a bearing device (20, 21) on the end face. Each bearing device (20; 21) can be suspended from a supporting area (17, 18; 12, 13) of the container (1) by means of a bearing plate (22; 23). At least one of the supporting areas (12, 13) can exist on a bridge-piece (9) of the container (1). Each bearing device (20; 21) can essentially be designed in the form of a triangle and can exhibit on one of its corners a holding device for an axle (45) or a shaft (57) of the contact aerator (3; 19). A motor (29) for the contact aerator (3; 19) can be arranged on one (20) of the bearing devices so that it can be adjusted relative to the bearing device. A sprocket pinion (30) of the motor (29) can be in engagement with a chain (31) which is fixed to the circumference of a circular chain-bearing element (32) fixed concentrically with the longitudinal axis (2) of the contact aerator (3; 19) to an end face of the contact aerator (3; 19). <IMAGE></p> |
