Scum trough, useful for clarifiers, comprises a channel body, means for height adjustment of the channel body or a side wall or a part of the side wall of the channel body for skimming of scum from a water surface in a settling tank

摘要

Scum trough for clarifiers, comprises a channel body (2), means for height adjustment of the channel body or a side wall (3) or a part of the side wall of the channel body for skimming of scum from a water surface (10) in a settling tank. The side wall comprises a retaining wall (8) adjacent to an overflow edge (7), which is parallel to the overflow edge at a distance from the overflow edge and whose upper edge is arranged above the overflow edge.