| 摘要 |
<p>The method for treating ammonium-containing wastewater (3) in a deammonified activated sludge system, comprises converting ammonium to nitrite using aerobic oxidizing bacteria, subsequently converting the ammonium and nitrite into elementary nitrogen using anaerobic oxidizing bacteria such as Planctomycetes, discharging surplus sludge, which is developed during the process, from the tank, and separating the discharged surplus sludge into a heavy phase that contains anaerobic ammonium oxidizing bacteria and into a lighter phase. The method for treating ammonium-containing wastewater (3) in a deammonified activated sludge system, comprises converting ammonium to nitrite using aerobic oxidizing bacteria, subsequently converting the ammonium and nitrite into elementary nitrogen using anaerobic oxidizing bacteria such as Planctomycetes, discharging surplus sludge, which is developed during the process, from the tank, and separating the discharged surplus sludge into a heavy phase that contains anaerobic ammonium oxidizing bacteria and into a lighter phase, where the heavy phase is led back and/or collected in the system. The separation of the surplus sludge is carried out in a hydrocyclone (8) and in a centrifuge, and by sedimentation.</p> |
