Wastewater treatment system and method of using same
AssigneeDBS Manufacturing, Inc.
InventorRichard Young
Life of this patent
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Abstract
A wastewater treatment system, comprising a tank and an elongate draft tube. The tank comprises a bottom and at least one partition wall extending short of a tank curved turning wall to form at least a pair of channels for movement of a volume of a liquid. The elongate draft tube is at least partially submerged beneath the liquid and is rotated about its longitudinal axis for orbitally moving the liquid through the at least a pair of channels of the tank in a fixed direction. A process for treating wastewater is also provided.
Claims42
A system for aerating a liquid, comprising:
- a tank having a bottom, wherein the tank holds a volume of the liquid;
- a first driven rotative shaft having a longitudinal axis, wherein at least a portion of the shaft extends into the liquid;
- a rotatable surface aerator mounted to the first driven rotative shaft and at least partially immersible into the liquid, wherein the surface aerator is adapted to rotate about the longitudinal axis of the first driven rotative shaft to move the liquid upward and distribute it over the liquid surface;
- and
- an elongate draft tube having a longitudinal axis, a proximal end and a distal end, the draft tube being mountable to the first driven rotative shaft and rotatable about the longitudinal axis of the first driven rotative shaft, wherein the longitudinal axis of the draft tube is substantially co-axial with the longitudinal axis of the first driven rotative shaft;
- wherein the proximal end of the draft tube underlies the surface aerator, and wherein the distal end of the draft tube is positioned a predetermined distance from the bottom of the tank.
A system for aerating a liquid, comprising:
- a tank having a bottom, wherein the tank holds a volume of the liquid;
- a first driven rotative shaft having a longitudinal axis;
- a rotatable surface aerator mounted to the first driven rotative shaft and at least partially immersible into the liquid, wherein the aeration rotor is adapted to rotate about the longitudinal axis of the first driven rotative shaft to move the liquid upward and distribute it over the liquid surface;
- and
- an elongate draft tube having a longitudinal axis, a proximal end and a distal end, the proximal end of the draft tube being connected to, and submerged underneath, the surface aerator, wherein the draft tube is rotatable about the longitudinal axis of the first driven rotative shaft, wherein the longitudinal axis of the draft tube is substantially co-axial with the longitudinal axis of the first driven rotative shaft, and wherein the distal end of the draft tube is positioned a predetermined distance from the bottom of the tank.
An orbital treatment system, comprising:
- an orbital tank comprising a bottom and at least one partition wall extending short of a tank curved turning wall to form at least a pair of channels for movement of a volume of a liquid;
- an elongate draft tube, wherein at least a portion of the draft tube is submerged beneath the liquid, and wherein a distal end of the draft tube is positioned a predetermined distance from the bottom of the tank;
- and
- a means for rotating the elongate draft tube for orbitally moving the liquid through the at least a pair of channels of the orbital tank in a fixed direction.
A process for wastewater treatment, comprising:
- providing an orbital tank comprising a bottom, a curved turning wall and a partition wall extending short of the curved turning wall to form at least a pair of channels for liquid transport and treatment;
- and
- rotating a submerged elongate draft tube having a proximal end and a distal end, the distal end of the draft tube being positioned a predetermined distance from the bottom of the tank for orbitally moving the liquid through the at least a pair of channels of the tank in a fixed direction.
Dependencies are inferred from the claim text.