Invention Grant
US08110109B2 Biological water treatment by alternating continuous and sequential aeration 有权
通过交替连续和顺序通气进行生物水处理

  • Patent Title: Biological water treatment by alternating continuous and sequential aeration
  • Patent Title (中): 通过交替连续和顺序通气进行生物水处理
  • Application No.: US12516642
    Application Date: 2007-12-07
  • Publication No.: US08110109B2
    Publication Date: 2012-02-07
  • Inventor: Cyrille LemoinePatricia Grelier
  • Applicant: Cyrille LemoinePatricia Grelier
  • Applicant Address: FR Saint-Maurice Cedex
  • Assignee: OTV SA
  • Current Assignee: OTV SA
  • Current Assignee Address: FR Saint-Maurice Cedex
  • Agency: Coats & Bennett, P.L.L.C.
  • Priority: FR0610738 20061208
  • International Application: PCT/EP2007/063536 WO 20071207
  • International Announcement: WO2008/068335 WO 20080612
  • Main IPC: C02F3/30
  • IPC: C02F3/30
Biological water treatment by alternating continuous and sequential aeration
Abstract:
A method of biologically treating water and more particularly, a process for nitrifying and denitrifying water includes employing a continuous aeration mode and a sequential aeration mode. In the continuous aeration mode, nitrification and denitrification reactions occur simultaneously in the water. The continuous aeration mode occurs when the nitrate concentration of the water reaches a predetermined low threshold. The sequential aeration mode occurs when the nitrate concentration reaches a predetermined high threshold. When in the sequential aeration mode, aeration is ceased when the ammoniac concentration reaches a predetermined low threshold and aeration is activated when the ammoniac concentration reaches a predetermined high threshold.
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