US 12,456,743 B2
Integrated waste reduction system
Sandeep Sathyamoorthy, Walnut Creek, CA (US)
Assigned to Black & Veatch Holding Company, Overland Park, KS (US)
Filed by Black & Veatch Holding Company, Overland Park, KS (US)
Filed on Dec. 21, 2022, as Appl. No. 18/069,674.
Claims priority of provisional application 63/293,248, filed on Dec. 23, 2021.
Prior Publication US 2023/0207847 A1, Jun. 29, 2023
Int. Cl. H01M 8/06 (2016.01); C02F 11/02 (2006.01); C02F 103/20 (2006.01); C02F 103/32 (2006.01); C12M 1/00 (2006.01); H01M 8/00 (2016.01); H01M 8/16 (2006.01)
CPC H01M 8/06 (2013.01) [C02F 11/02 (2013.01); C12M 23/40 (2013.01); C12M 23/58 (2013.01); C12M 43/08 (2013.01); H01M 8/004 (2013.01); H01M 8/16 (2013.01); C02F 2103/20 (2013.01); C02F 2103/32 (2013.01); C02F 2301/08 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A system for treating an organic waste feedstock comprising:
(a) a first fermentation vessel comprising:
a waste stream inlet configured to direct the organic waste feedstock into the first fermentation vessel,
an upflow tube having a lower tube inlet and an upper tube outlet,
a liquid circulation device configured to cause the organic waste feedstock to enter the upflow tube at the lower tube inlet and exit the upflow tube at the upper tube outlet,
a first fermentation vessel outlet; and
one or more species of microorganisms that ferment an organic material contained within the organic waste feedstock and produce one or more carboxylic acids; and
(b) a second fermentation vessel comprising:
a second fermentation vessel inlet configured to receive an organic waste stream from the first fermentation vessel and introduce the organic waste stream into the second fermentation vessel,
a second fermentation vessel outlet; and
one or more species of microorganisms, which can be the same or different from the one or more species of microorganisms present within the first fermentation vessel, that ferment the organic material contained within the organic waste stream to produce one or more carboxylic acids, which can be the same or different from the one or more carboxylic acids produced within the first fermentation vessel.