Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2008-09-02
2008-09-02
Upton, Christopher (Department: 1724)
Liquid purification or separation
Processes
Treatment by living organism
C210S629000, C210S620000, C210S197000, C210S220000, C210S540000
Reexamination Certificate
active
11107946
ABSTRACT:
A bioreactor configured to contain an aqueous suspension of biomass and media is provided. The invention includes a lift tube disposed within the vessel, the lift tube having an inlet disposed at the bottom region of the vessel and an outlet disposed at the top region of the vessel. Disposed at the bottom of the lift tube is a gas inlet positioned to feed gas into the lift tube at a location proximal to the inlet of the lift tube. An adjustable weir is disposed proximal to the outlet of the lift tube, the weir being adjustable between a lower position and a higher position. Biomass is removed from the weir and the weir height is adjustable to control the removal of biomass from the vessel. Also included as a part of the invention is a method for controlling the removal of biomass from a bioreactor as described.
REFERENCES:
patent: 2024986 (1935-12-01), Durdin, Jr.
patent: 2638444 (1953-05-01), Kappe
patent: 3043433 (1962-07-01), Singer
patent: 3152982 (1964-10-01), Pagnotti
patent: 3182801 (1965-05-01), Griffith
patent: 3224964 (1965-12-01), Derenk et al.
patent: 4137171 (1979-01-01), Yokata
patent: 4452701 (1984-06-01), Garrett et al.
patent: 4454038 (1984-06-01), Shimodaira et al.
patent: 4521311 (1985-06-01), Fuchs et al.
patent: 4810377 (1989-03-01), Kato et al.
patent: 4839053 (1989-06-01), Tharp
patent: 5372712 (1994-12-01), Petit
patent: 5942116 (1999-08-01), Clark et al.
patent: 6077424 (2000-06-01), Katsukura et al.
patent: 6168717 (2001-01-01), Pressley et al.
patent: 6616845 (2003-09-01), Shechter et al.
patent: 102 44 295 (1998-09-01), None
patent: 2000167579 (2000-06-01), None
patent: 2002079283 (2002-03-01), None
patent: 2003154385 (2003-05-01), None
patent: 2003300086 (2003-10-01), None
patent: WO 2005/034613 (2005-04-01), None
Translation of Japanese patent 10-244295, Sep. 1998.
Eckenfelder, “Principles of Water Quality Management”, 1980, pp. 216 and 218.
Steel and McGhee, “Water Supply and Sewerage”, 1979, pp. 503, 508 and 509.
Search Report for claim 19, application No. GB0607540.2, dated Dec. 14, 2006.
Search Report for claim 20, application No. GB0607540.2, dated Dec. 15, 2006.
Search Report for claim 21, application No. GB0607540.2, dated Dec. 15, 2006.
Search Report for claim 22, application No. GB0607540.2, dated Dec. 15, 2006.
Combined British Search and Examination Report corresponding to GB0607540.2 dated Jun. 30, 2006.
RatnerPrestia
Shaw Environmental & Infrastructure, Inc.
Upton Christopher
LandOfFree
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