Biological Wastewater Treatment in Helsingborg - Öresundsverket

Öresundsverket in Helsingborg treats the wastewater from the 140,000 inhabitants through a biological process.

Öresundsverket in Helsingborg treats the wastewater from the 140,000 inhabitants through a biological process. The unique plant reaches Swedish effluent requirements without adding any chemicals to the process. At Öresundsverket both nitrogen and phosphorous are removed biologically by microorganisms. The sludge produced is used as substrate for the production of biogas in a digestion plant. The gas is sold and delivered to Öresundskraft, a local energy company that sells it as bio-fuel for buses and cars. The Öresundsverket wastewater treatment plant is run by NSVA, a water services company owned by several municipalities in the region.