The two oxidation ditches (ponds) of the Berghofen wastewater treatment plant were equipped with conventional surface aerators.
Due to it’s age, in 2020 the equipment became due for refurbishment. The process engineering concept provides for fixed cycles, typical for an SBR (Sequencing Batch Reactor). During the filling phases, the Mammutrotor® is therewith partly operated with an adverse immersion depth.