Treatment process combination
The Rheinbach site demonstrates the use of retention soil filters (RSF) as flexible technology to treat both combined sewer overflows and wastewater treatment plant effluent before discharge. A pilot plant has been operated to test different amendments of the RSF with sorbents such as activated carbon on micropollutants elimination. A full-scale system will be implemented and closely monitored.
Aims & ambition
The aim of the demonstration is to prove the dual application of a retention soil filter in a dynamic wastewater management system: during dry weather the RSF is utilised to provide advanced treatment of WWTP effluent; in wet weather CSOs are conducted to the RSF for treatment. In the project we will
- gain knowledge about the reduction rates of various emerging substances in RSF under different scenarios.
- enhance the chemical and ecological status of the receiving river system through advanced treatment of CSO and WWTP effluent.
- assure the transferability of the concept to other sewer systems.