ABIONIK has delivered a compact wastewater treatment plant with fixed bed technology including vacuum system and sterilizer for the on-board hospital ward for the Einsatzgruppenversorger type 702 to meet the complex requirements for wastewater disposal of the navy.

The compact plant consists of an integrated buffer with an upstream fine screen, followed by a fixed bed reactor based on the Biolace process, a clarifier and a final UV thin film disinfection. The plant operates fully automatically and is integrated into the central control system of the ship.

• Population equivalent (p.e.) 300
• Waste water inflow (m³/d) 42.5
• BOD5 inflow (kg/d) 25.5

In order to protect nature as much as possible, a biological membrane system was installed on board the Arctic research vessel "Maria S. Merian" together with the vacuum system that was also supplied. The system has sufficient capacity to treat the waste water of 50 people. According to the latest IMO regulations, the disposal of bilge water is also carried out on board the MV "Maria S. Merian". As a special feature, the biological BMA reactor is connected to the bilge water tank.