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US 7,862,014 B2Granted
Hybrid diffuser system headloss balancing
AssigneeSiemens Water Technologies Corp.
InventorsJohn Lechner, Lawrence B. Ratzlow, Peter Petit
Life of this patent
Estimating the term…
Abstract
In a tank for treating wastewater and including a first plurality of air diffuser elements and a second plurality of air diffuser elements, means for adjusting the relative height of the first diffuser elements with respect to the height of the second diffuser elements in response to changing operating conditions in the tank and changes in the characteristics of the diffusers.
Claims16
A wastewater treatment system comprising,
- at least one tank for containing a volume of wastewater,
- an air supply,
- a first header, submerged in the volume of wastewater, and connected to an air supply,
- a plurality of first diffuser elements mounted on the first header for diffusing air into the wastewater,
- a second header submerged in the volume of wastewater and connected to an air supply,
- a plurality of second diffuser elements mounted on the second header for diffusing air into the wastewater,
- wherein the first header can be adjustably moved vertically with respect to the second header, and wherein the first and second diffuser elements maintain a vertical orientation in the tank during vertical movement.
4 more elements
A wastewater treatment system comprising:
- at least one tank containing a volume of wastewater,
- an air supply,
- a first header, submerged in the volume of wastewater, and connected to an air supply,
- a plurality of first diffuser elements mounted on the first header for diffusing air into the wastewater,
- a second header submerged in the volume of wastewater and connected to an air supply,
- a plurality of second diffuser elements mounted on the second header for diffusing air into the wastewater, and
- a means for adjustably moving the vertical height of the first header with respect to the second header, wherein the first and second diffuser elements maintain a vertical orientation in the tank during vertical movement.
4 more elements
A tank for treating wastewater, the tank comprising:
- a plurality of first diffuser elements connected to an air supply, the first diffuser elements are of a first type,
- a plurality of second diffuser elements connected to an air supply, the second diffuser elements are of a second type,
- a means for adjusting the vertical height of the first diffuser elements with respect to the vertical height of the second diffuser elements, and wherein the first and second diffuser elements maintain a vertical orientation in the tank during vertical movement.
A method for treating wastewater comprising:
- providing a tank containing a volume of wastewater,
- providing a first set of diffuser elements in the tank connected to an air supply for diffusing air in the form of fine bubbles into the wastewater in the tank,
- providing a second set of diffuser elements in the tank connected to an air supply for diffusing air in the form of fine bubbles into the wastewater in the tank, and
- adjusting the vertical height of the first set of diffuser elements with respect to the vertical height of the second set of diffuser elements so that the first set of diffuser elements is positioned at a first vertical position in the tank and the second set of diffuser elements is positioned at a second vertical position in the tank different from the first vertical position.
1 more element
Dependencies are inferred from the claim text.