Lamella separators in the upgrading of a large urban sewage treatment plant

摘要

Wupperverband is using lamella separators for the upgrading of its Kohlfurth sewage treatment plant that is currently in progress. The lamellae positioned at the outlet of the biological treatment stage already remove part of the biomass in the activation basin and prevent it from reaching the final clarification stage. This preliminary separation system reduces solids concentration in the biological treatment system without negative impact on final clarification and therefore also lowers the basin capacity needed, with positive effects on costs. This article gives an overview of the separation performance achieved.