| 摘要 |
<p>The invention concerns a purification plant for removal of nutrients particularly removal of nitrogen from sewage. The new about the invention is that the recirculation is carried out by turbulence in a hydraulic boundary layer in a processtank, where the oxic and anoxic chamber is separated by one or more partition-walls and where the hydraulic boundary layers are placed in one or more openings in the partition walls. The recirculation can be improved by the mixers in the oxic and anoxic chamber.</p> |
