Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2007-03-08
2009-02-03
Prince, Fred (Department: 1797)
Liquid purification or separation
Processes
Treatment by living organism
C210S613000, C210S180000, C210S259000, C210S916000, C435S262500
Reexamination Certificate
active
07485230
ABSTRACT:
A system and method integrating treatment of waste, polar Fats/Oils/Greases (FOG) with conventional anaerobic wastewater treatment facilities for biologically fueling digestion of solids in, and steady state production of methane from treated wastewater streams that includes a slipstream loop circulating warmed, actively digesting sludge from the base to the head of the anaerobic wastewater treatment facility, a conditioning tank with input screened by a rock trap, actively digesting sludge pumped from the slipstream loop into the tank via the rock trap, before and after FOG wastes are pumped from a hauler tank via a hose connecting to the rock trap into the conditioning tank and mixed with actively digesting sludge in the tank to produce a feedstock slurry rich in volatile fatty acids for injection at a metered rate back into the actively digesting sludge slipstream loop for introduction at the head of the anaerobic wastewater treatment facility.
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Chevron Energy Solutions Company, a Division of Chevron U.S.A. Inc.; “Cogeneration & Grease Receiving Station Project,—Report and Proposal”; Dated Feb. 3, 2005; pp. 17-20, and Attachment 1 pp. 2-5 of Detailed Scope of Work. [Available from the City of Millbrae, CA pursuant a Freedom of Information Request].
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Magner Joseph A.
York Richard V.
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