Patents Assigned to Envirotech
  • Bioslurry reactor for treatment of slurries containing minerals, soils and sludges
    Patent number: 5057284
    Abstract: A reactor vessel for use in treating slurries containing minerals, soils or sludges contaminated with toxic organic substances is disclosed. The vessel includes a tank, having a sealed cover, a mixer arrangement, an air supply arrangement and an exhaust gas recycling system. The air supply arrangement includes one or more porous, flexible membrane diffusers adapted for introducing gas, in the form of fine bubbles, into a tank contained slurry.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: October 15, 1991
    Assignee: Envirotech
    Inventors: Robert C. Emmett, Jr., Lawrence T. O'Connor, Gunter H. Brox