Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2007-04-03
2008-12-09
Barry, Chester T (Department: 1797)
Liquid purification or separation
Processes
Treatment by living organism
C210S620000, C210S621000, C210S622000, C210S150000, C210S151000, C210S220000
Reexamination Certificate
active
07462285
ABSTRACT:
The invention described herein provides a novel means to biologically denitrify nitrogenous compounds in wastewater using a simultaneous reaction under aerobic conditions. To conduct this reaction it is necessary to culture both autotrophic ammonia oxidizing bacteria as well as facultative heterotrophic bacteria such that the facultative heterotrophs can denitrify the oxidized ammonia compounds produced by the autotrophic bacteria as they are produced. The device described herein, along with methods of operating such a device, provides a means to facilitate the above reaction.
REFERENCES:
patent: 5531898 (1996-07-01), Wickham
patent: 6660163 (2003-12-01), Miklos
patent: 6780318 (2004-08-01), Fife et al.
patent: 2002/0023887 (2002-02-01), Lorenz et al.
patent: 2003/0159988 (2003-08-01), Daigger et al.
patent: 2005/0077237 (2005-04-01), Wickham
patent: 2007/0218537 (2007-09-01), Furukawa et al.
Barry Chester T
Sherman Edward S.
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