Sewage from cargo ships may be legally discharged into the Baltic Sea, although it accelerates eutrophication. The Baltic Sea Action Group (BSAG) is bringing together cooperation parties for the new Ship/t Waste Action that produces biogas from sewage discharged by ships at port with the Finnish port of HaminaKotka signed on as a first port.
“We can achieve our objective of a cleaner Baltic Sea, one ship, one port and one country at a time. The nutrient load on the sea decreases every time wastewater is discharged at the port. We need extensive cooperation to succeed in our mission,” commented Elisa Mikkolainen, project director at BSAG.
Finnish water treatment specialist Kymen Vesi treats the sewage discharged by ships at the port of HaminaKotka. The wastewater sludge created in the process is refined into renewable energy at Gasum’s biogas plant.
Shipowners including Maersk, Stolt Tankers, Meriaura and Essberger are taking part in the project.
“The port of HaminaKotka is the largest general port in Finland, visited by approximately 2,500 cargo ships every year. We want to encourage ships to discharge their wastewater at the port. Our sewage reception and treatment facilities meet the requirements of the circular economy,” said Suvi-Tuuli Lappalainen, development manager at the Port of HaminaKotka.