Commissioning of ship wastewater treatment plant in ISAH’s test hall
The ship wastewater treatment plant, which is part of the research project OSCAR, was put into operation at ISAH’s test hall at the municipal wastewater treatment plant Hannover-Herrenhausen in early October 2021. The plant is a small version (ca. 4.5 m³) of RWO ’s CS-MBR type ship wastewater treatment plant for the biological removal of COD, nitrogen and phosphorous. Due to its nutrient removal capability, the plant is suited to operate in sensitive areas such as the Baltic Sea (certification according to IMO MEPC.227(64) incl. appendix 4.2). It has been fitted with numerous additional sensors and delivers data for developing a digital twin (simulation model) of the wastewater treatment on cruise ships. To enable remote monitoring of the plant, the IoT connector –a Raspberry Pi-based data collection device developed by our project partner SEGNO – will continuously transfer plant status and sensor data to the OSCAR cloud. The setup will be in operation until summer 2022 and forms an integral part for developing and testing the OSCAR operational assistance system.
The municipal wastewater of the wastewater treatment plant Hannover-Herrenhausen serves as basic influent to the ship wastewater treatment plant. To reproduce wastewater compositions and diurnal variations that are typical for cruise ships, varying amounts of additional substrates will be added via a completely automated wastewater mixing and dosing station, which is currently being constructed. This allows to investigate the reaction of the biological processes in the wastewater treatment plant under different influent characteristics and operating conditions. Based on the gathered data, the simulation model (digital twin) will be adjusted to appropriately represent the plant’s behaviour.
For further information on the research project OSCAR see the project description or visit the project’s homepage (in German): www.oscar-cloud.de
We would like to thank the German Federal Ministry for Economic Affairs and Energy (BMWi) for funding the research project OSCAR.
