Bioslurry reactor for treatment of slurries containing minerals, soils and sludges
AssigneeEnvirotech Corporation
InventorsRobert C. Emmett, Jr., Lawrence T. O'Connor, Gunter H. Brox
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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.
Claims12
A reactor vessel for use in treating through use of bacteria, slurries containing minerals, soils, or sludges, including such slurries as may be contaminated with hazardous waste organic compounds, said slurries having a solids concentration by weight of approximately 6% or more, said vessel comprising:
- a container means for containing a quantity of slurry;
- an oxygen supply means mounted within said container means, said oxygen supply means including at least one flexible porous membrane diffuser adapted for receiving a supply of oxygen-containing gas and distributing said gas into said container means in a form of fine bubbles;
- a mixing means for mixing and recirculating the slurry contained within said container means, said mixing means being positioned adjacent a bottom of said container means;
- an exhaust gas recycling means mounted on said container means for drawing off a quantity of exhaust gas from said container means, treating said quantity of exhaust gas by extracting carbon dioxide therefrom, injecting oxygen into said quantity of exhaust gas and thereafter reintroducing said quantity of exhaust gas into said container means by means of said oxygen supply means;
- wherein said container means is sealed to prevent escape of exhaust gas.
Dependencies are inferred from the claim text.