New sludge dewatering system
Wastewater treatment plant at Merck KGaA, Darmstadt
Engineering services
- Engineering structures, LPH 1-3
- Structural engineering, LPH 1-3
- Technical equipment, LPH 1-3
Client
Merck KGaA Darmstadt
Frankfurter Strasse 250
64293 Darmstadt
Processing period
2022-2023

Contact
Dr.-Ing. Anke Durth
project Management
T +49 61 51 85 95-20
a.durth@dahlem-ingenieure.de
SHORT DESCRIPTION
A dewatering plant for the sewage sludge produced at Merck KGaA's central wastewater treatment plant in Darmstadt was planned. The plant consists of a sludge dewatering hall with an adjoining room for the electrical equipment and a silo for sludge storage located next to the hall.
A centrifuge with the addition of polymer flocculants is planned for dewatering. Space and connections for a second centrifuge are already provided for. The silo is designed as a rectangular push-floor container with a steel substructure and shallow foundation. The sludge is loaded from the silo into trucks using shaftless spiral conveyors (screw conveyors). Alternatively, it can be discharged into skip containers.
A dewatering plant for the sewage sludge produced at Merck KGaA's central wastewater treatment plant in Darmstadt was planned. The plant consists of a sludge dewatering hall with an adjoining room for the electrical equipment and a silo for sludge storage located next to the hall.
A centrifuge with the addition of polymer flocculants is planned for dewatering. Space and connections for a second centrifuge are already provided for. The silo is designed as a rectangular push-floor container with a steel substructure and shallow foundation. The sludge is loaded from the silo into trucks using shaftless spiral conveyors (screw conveyors). Alternatively, it can be discharged into skip containers.
Projectdata
- Sludge volume 28,000 t/a
- New sludge dewatering hall as steel construction
- New electrical room in reinforced concrete
- Rectangular silo, usable volume 100 m³
- Centrifuge, throughput 15 m³/h
- FHM station
- Sludge transport by means of screw conveyors



