| 摘要 |
The present invention relates to a device at sedimentation basins and similar arrangements in order to move and remove precipitate and/or sludge gathered in the lower part of the basin (1), whereby a number of laminae (7) are rotatably arranged around one of their ends, whereby the laminae in a first position are arranged to take a substantially vertical position and in a second position they are arranged to take a horizontal position, whereby the laminae (7) in their second position creates a substantially second bottom above and at some distance from the bottom (2) of the sedimentation basin (1). The invention further relates to a process for emptying of sludge and a process for recirculation of sludge. |
