Orbital wastewater treatment system and method of operating same
AssigneeOvivo Inc.
InventorsThomas Leland, Joy Emory, Steve Myers
Life of this patent
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Abstract
An orbital wastewater treatment system includes a tank assembly, at least one impeller, at least one flow-diversion mechanism, at least one actuator, optionally at least one sensor disposed in the tank assembly, and a control unit. The tank assembly has three treatment zones and pairs of passages between the first zone and the second zone and between the second zone and the third zone. The impeller disposed in the tank assembly moves mixed liquor under process about the tank assembly. Multiple flow-diversion mechanisms disposed at the passages between the zones of each pair control process conditions pursuant to a predetermined schedule and/or at least partially in accordance with input from the one or more sensors.
Claims53
An orbital wastewater treatment system comprising:
- a tank assembly having at least a first treatment zone, a second treatment zone and a third treatment zone, said tank assembly having at least two first passages between said first treatment zone and said second treatment zone and at least two second passages between said second treatment zone and said third treatment zone;
- and
- at least one impeller in said tank assembly for moving mixed liquor under process about said tank assembly and through said passages;
- a first flow-diversion mechanism disposed at at least one of said first passages;
- a second flow-diversion mechanism disposed at at least one of said second passages;
- a first actuator operatively connected to said first flow-diversion mechanism;
- a second actuator operatively connected to said second flow-diversion mechanism;
- and
- a control unit operatively connected to said first actuator and said second actuator for regulating or adjusting a flow state or configuration of said first flow-diversion mechanism and said second flow-diversion mechanism.
A method for operating an orbital wastewater treatment system, said system including a tank assembly with at least a first treatment zone, a second treatment zone and a third treatment zone, said tank assembly having at least two passages between said first treatment zone and said second treatment zone and at least two second passages between said second treatment zone and said third treatment zone, said method comprising:
- energizing at least one impeller in said tank assembly to move mixed liquor about said tank assembly;
- and
- automatically adjusting a flow state or configuration of a flow-diversion mechanism at at least one of said passages to modify a flow of mixed liquor between said first treatment zone and said second treatment zone and between said second treatment zone and said third treatment zone,
- said flow-diversion mechanism being a first flow-diversion mechanism disposed at at least one of said first passages, the system further comprising a second flow-diversion mechanism disposed at at least one of said second passages, further comprising automatically adjusting a flow state or configuration of said second flow-diversion mechanism to further modify the flow, of mixed liquor between said first treatment zone and said second treatment zone and between said second treatment zone and said third treatment zone.
An orbital wastewater treatment system comprising:
- a tank assembly having at least a first treatment zone, a second treatment zone and a third treatment zone, said tank assembly having at least two first passages between said first treatment zone and said second treatment zone and at least two second passages between said second treatment zone and said third treatment zone;
- and
- at least one impeller in said tank assembly for moving mixed liquor under process about said tank assembly and through said first passages and said second passages,
- wherein one of said at least two first passages forms an inlet passage to said first treatment zone and the other of said at least two first passages forms an outlet passage from said first treatment zone, said inlet passage and said outlet passage respectively having a first flow cross-sectional area and a second flow cross-sectional area each normal to a direction of liquor flow, said first treatment zone having a third flow cross-sectional area normal to the direction of liquor flow, said third flow cross-sectional area being substantially larger than said first flow cross-sectional area, said third flow cross-sectional area being substantially larger than said second flow cross-sectional area, said one of said at least two second passages forms an inflow passage to said third treatment zone and the other of said at least two second passages forms an outflow passage from said third treatment zone, said inflow passage and said outflow passage respectively having a fourth flow cross-sectional area and a fifth flow cross-sectional area each normal to a direction of liquor flow, said third treatment zone having a sixth flow cross-sectional area normal to the direction of liquor flow, said sixth flow cross-sectional area being substantially larger than said fourth flow cross-sectional area, said third flow cross-sectional area being substantially larger than said fifth flow cross-sectional area.
Dependencies are inferred from the claim text.