Lamella separators are used in the treatment of drinking water and in the treatment of municipal and industrial wastewater for the sedimentation of suspended solids. Compared to a conventional sedimentation tank, a lamella separator allows a significant reduction in the built-up area. It is a vertically flowing sedimentation tank in which a lamella is placed with an inclination of 50 - 60°. The surface load of the tank is determined by the settling area. This is determined by the normal plan area of the settling tank. When a tank is installed, the settling area is increased by the projection of the plan area of the lamellas themselves. As a result, the footprint of the sedimentation tank can be reduced by a factor of 10 to 15, depending on the parameters of the lamellas. The apparent upward velocities are therefore 10 - 20 m/h.
In wastewater treatment, lamella separators can be used in primary separation, tertiary treatment and stormwater treatment. In sludge management, they are used for sludge thickening and separation of sludge from biofilters. In the treatment of drinking and process water, fin separators are arranged within the first separation stage or for sludge thickening.
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Benefits
- Intensification of existing settling tanks
- Small built-up area
- Easy maintenance