- 专利标题： Method for the biological treatment of nitrogen in effluents by nitritation
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申请号： US16652190申请日： 2018-10-04
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公开(公告)号： US11447409B2公开(公告)日： 2022-09-20
- 发明人: Marc Caligaris , Thibaut Saur , Irène Mozo
- 申请人： Suez Groupe
- 申请人地址： FR Paris
- 专利权人： Suez Groupe
- 当前专利权人： Suez Groupe
- 当前专利权人地址： FR Paris
- 代理机构： Morgan, Lewis & Bockius LLP
- 优先权： FR1759306 20171004
- 国际申请： PCT/FR2018/052453 WO 20181004
- 国际公布： WO2019/069031 WO 20190411
- 主分类号： C02F3/30
- IPC分类号： C02F3/30 ; C02F3/00 ; C02F3/12 ; C02F101/16
摘要：
The invention relates to a method for the biological treatment of nitrogen in the form of ammonium in wastewater, by nitritation in a biological reactor, comprising: at least one step a of aerating the biological reactor containing the wastewater to be treated, at least one step b of eliminating at least part of the nitrites produced in step a, and a step c of extracting, from the reactor, a fraction of the sludge resulting from steps a and b. The invention also concerns a method for the biological treatment of nitrogen in wastewater, by nitritation/denitritation and/or deammonification, wherein the nitritation is implemented using the nitritation method according to the invention.