Invention Grant
- 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.: US12516642Application Date: 2007-12-07
-
Publication No.: US08110109B2Publication Date: 2012-02-07
- Inventor: Cyrille Lemoine , Patricia Grelier
- Applicant: Cyrille Lemoine , Patricia 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

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.
Public/Granted literature
- US20100065494A1 Biological Water Treatment by Alternating Continuous and Sequential Aeration Public/Granted day:2010-03-18
Information query