FULLSKALEFÖRSÖK MED NITRIFIERING AV REJEKTVATTEN FRÅN CENTRIFUGERING AV RÖTSLAM VID BROMMA AVLOPPSVERK / Full-Scale Experiments of Nitrification of Sidestreams from Centrifugation of Digested Sludge at Bromma Municipal Wastewater Treatment Plant
Bromma municipal wastewater treatment plant is the second largest plant in Stockholm with a design flow of 160,000 m3/day. Decisions were made in 1982 to study nitrification of side- streams from the dewatering of digested sludge in full-scale at Bromma in order to improve the overall nitrification capacity of the plant. The investigation is jointly financed by Stockholm Water and Wastewater Works and the National Swedish Environment Protection Board with a total budget of about 2,200,000 SEK. The studies were performed in a rebuilt primary sedimentation basin and consisted of an anoxic zone with mixing devices for denitrification, an aerobic zone with diffused aerators for nitrification and a sedimentation zone. The rebuilt primary sedimentation basin was supplied with sidestream water from a centrifugation unit for dewatering of digested sludge. “Complete abstract not presented.”