15.
    发明专利
    未知

    公开(公告)号:DE69313338T2

    公开(公告)日:1998-01-02

    申请号:DE69313338

    申请日:1993-03-23

    Abstract: A method for aerobically treating a low solids water-containing oily sludge and other organic wastes which comprises combining said sludge or waste with a biologically inert, non-friable bulking agent characterized by having a substantial component with a density less than water to form a mixture, passing an oxygen-containing gas through said mixture to separate excess water and form a high solids content reaction mixture, reacting said high solids content reaction mixture in the presence of an aerobic biomass under effective aerobic conditions to form a treated sludge and an active biomass-coated bulking agent component having a density less than water in said high solids content reaction mixture, separating said biomass-coated bulking agent component from said treated sludge or waste, and recovering said treated sludge or waste from said reaction mixture has been provided.

    16.
    发明专利
    未知

    公开(公告)号:DE69313338D1

    公开(公告)日:1997-10-02

    申请号:DE69313338

    申请日:1993-03-23

    Abstract: A method for aerobically treating a low solids water-containing oily sludge and other organic wastes which comprises combining said sludge or waste with a biologically inert, non-friable bulking agent characterized by having a substantial component with a density less than water to form a mixture, passing an oxygen-containing gas through said mixture to separate excess water and form a high solids content reaction mixture, reacting said high solids content reaction mixture in the presence of an aerobic biomass under effective aerobic conditions to form a treated sludge and an active biomass-coated bulking agent component having a density less than water in said high solids content reaction mixture, separating said biomass-coated bulking agent component from said treated sludge or waste, and recovering said treated sludge or waste from said reaction mixture has been provided.

    20.
    发明专利
    未知

    公开(公告)号:DE69935251D1

    公开(公告)日:2007-04-05

    申请号:DE69935251

    申请日:1999-12-03

    Abstract: The high intracellular water content contained within the cell walls of the bacterial cells of a dewatered biosludge is reduced by removing the intracellular water in a denaturing operation. This operation comprises heating the biosludge at a temperature sufficient to weaken the bacterial cell walls. The weakened cell walls are then exposed to a reduced pressure sufficient to form vapor within the cell and to thus rupture the weakened cell walls and thereby release the intracellular water in the form of a hot aqueous vapor and/or released intracellular water. The water-reduced concentrated biosludge can then serve as a fuel source in a partial oxidation reaction for the production of synthesis gas.

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