Liquid purification or separation – Serially connected distinct treating with or without storage... – With pump – gas pressure or vacuum source
Reexamination Certificate
2006-01-03
2006-01-03
Prince, Fred G. (Department: 1724)
Liquid purification or separation
Serially connected distinct treating with or without storage...
With pump, gas pressure or vacuum source
C210S260000, C210S603000
Reexamination Certificate
active
06982035
ABSTRACT:
An anaerobic digester is disclosed including a single orbicular vessel having two chambers configured for the separate treatment of high-solids and low-solids phases of organic matter. The vessel combines a high solids, plug flow path wherein low solids liquids are separated and directed to a high rate treatment path. The invention provides a novel and simple apparatus for the anaerobic conversion of both high solid and low solid wastes to methane, carbon dioxide, a liquid effluent that can be used as fertilizer, and a solid residue that can be used as a soil amendment. The invention combines the advantages of high solids loop digesters and low solids high rate digesters into a single orbicular vessel. Due to the orbicular geometry, in which a first chamber is a path surrounding and orbiting a second chamber, the apparatus has greater thermal and material efficiencies.
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Hanson Sven W.
Prince Fred G.
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