Aeration system for solid biological waste
AssigneeConfinement Investors, Inc.
InventorEverett W. Coggins
Life of this patent
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Abstract
An aeration system for treating solid biological waste, and the like, has a fluid circulating device disposable in a tank holding a slurry of solid and liquid to be treated for drawing air and slurry from a surface portion of the slurry in the tank and discharging the air and slurry adjacent the bottom of the tank. The circulation device has a propeller pump disposed in a duct having an inlet and an outlet forming the fluid path through the slurry, with a float assembly being connected to the duct adjacent the inlet thereof for positioning the inlet adjacent the surface of the slurry in which the duct is immersed.
Claims5
An aeration system for treating solid biological wastes, comprising, in combination:
- (1) a storage area having a bottom and arranged for holding a slurry of solids and liquids to be treated;
- and
- (2) circulating means disposed in the storage area for drawing air and slurry from the surface of the slurry in the storage area and discharging the surface air and slurry into the slurry adjacent the bottom of the storage area, wherein the circulating means consists essentially of:
- (a) a duct means having an inlet and outlet and disposed in the storage area so as to be immersible in the slurry forming a fluid flow path through the slurry, said duct means consisting of a hollow tube means extending from the surface of said slurry to adjacent the bottom of said storage area;
- (b) propeller pump means positioned in the duct means and disposed adjacent said outlet for drawing slurry through the duct means from the inlet to the outlet;
- and
- (c) float means connected to the duct means adjacent said inlet for positioning the inlet of the duct means adjacent the surface of the slurry so that a major portion of said inlet is immersed in said slurry.
Dependencies are inferred from the claim text.