公开(公告)号：US10259732B2

公开(公告)日：2019-04-16

申请号：US15502353

申请日：2015-07-30

申请人： SUEZ INTERNATIONAL

发明人： Philippe Ginestet ,  Laure Graveleau Billemaz

IPC分类号： C02F3/12 ,  C02F3/00 ,  C02F3/30 ,  C02F3/20 ,  C02F101/16 ,  C02F101/38

摘要： A method for treating effluents containing nitrogen in the form of ammonium, implementing chemical reactions for oxidizing and reducing the nitrogen in a sequencing batch reactor, the method including: introducing a volume of effluents to be treated into the reactor, injecting oxygen or air into the reactor for partial oxidation of the ammonium into nitrites and/or nitrates, interrupting the injection of oxygen or air, thus producing gaseous nitrogen, depositing the sludge at the bottom of the reactor and clarifying the content of the reactor close to the surface of same, discharging a clarified fraction of the content of the reactor. The draining and feeding steps occur simultaneously. During the feeding step, the volume of effluents is introduced close to the bottom of the reactor. During the draining step, the clarified fraction of the content of the reactor is discharged close to the surface of the content of the reactor.