Bioscrubbing, an effective and economic solution to odour control at wastewater treatment plants

Based on odour nuisances from the Damhusaaen Wastewater Treatment Plant in Copenhagen, it was decided that the critical sections of the inlet structure to the treatment plant should be covered and enclosed. The ventilation air, 6000m3/h, is cleaned in a bioscrubber process. These installations have reduced the odour in the surroundings of the treatment plant to the extent that it is no longer noticeable. A cleaning efficiency for hydrogen sulphide of >99% and low residual emissions,