Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2006-03-28
2006-03-28
Upton, Christopher (Department: 1724)
Liquid purification or separation
Processes
Treatment by living organism
C210S629000, C210S150000, C210S194000, C210S220000
Reexamination Certificate
active
07018534
ABSTRACT:
The present invention provides a bioreactor comprising a vessel having a bottom region and an interior configured to contain an aqueous suspension of biomass and media. A first gas outlet is provided at the bottom region of the vessel. The first gas outlet is positioned to introduce a first stream of gas to promote growth of the biomass on the media. A lift tube is disposed within the vessel, the lift tube having an inlet disposed at the bottom region of the vessel. A second gas outlet is disposed proximal the lift tube inlet to feed gas to the inlet of the lift tube.
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International Search Report, application No. PCT/US04/33248, dated Oct. 3, 2005.
RatnerPrestia
Shaw Environmental and Infrastructure, Inc.
Upton Christopher
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