Operating principle of sedimentation
The treatment of water polluted with solids is carried out in most cases with filter systems. They operate according to the sedimentation principle. Suspended matter is retained in the filter and deposited. The filtered water can subsequently be diverted and used. Nature serves as a model for this principle: Bank filtrate is water that is constantly trickling through the river bed and soil into the ground water. On its way through the different soil layers, the water is cleaned.
Filter systems are used in almost all areas of water treatment, including
- Drinking-water treatment
- Waste-water treatment, e.g. as pre-treatment prior to filtration or for final treatment according to biological aeration methods
- Industrial process water treatment, e.g. in the paper and pulp industry