Sedimentation plant
Sedimentation systems with barriers ( dams ) are a special form of dam systems , as they contain not only water , but also a high proportion of sludge (suspended matter finely distributed in water). The sludge comes from raw material extraction (mining) and processing or other technical processes and should be dewatered in the sedimentation plant and often also disposed of.
There are sedimentation systems that block a valley like a dam , lean in a U-shape on a slope or consist of a ring dam on a level. Often parts of the sediment are also used as barrier building material. The sludge is washed into the basin from the barrier structure so that the coarser components are deposited on the structure and used to raise it. This requires precise examinations of the sediment and careful monitoring of operations.
The composition of the sludge can result in an additional hazard in the case of environmentally harmful components, for which special measures and monitoring devices are required.
A floating diving wall serves the opposite purpose, allowing sediment-laden water to pass underneath, while floating substances are retained.
See also
literature
- DIN 19700 - Part 15 "Sedimentation basin"