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US 12,611,678 B2Granted
Separation of fluids containing solids
AssigneeWorld Water Works, Inc.
InventorsDaniel R. Dair, Kyle L. Booth, John R. Tessandori
Life of this patent
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Abstract
The methods and systems provide for the improvement in the separation of different portions of solids particles, such as bacteria, from a process stream. The methods use gas and control of fluid flow within a tank zone to provide for separation that is more selective.
Claims17
A method for selectively separating solids from a process stream from a treatment or production process, the method comprising:
- introducing the process stream into a separation zone having an upper portion, a lower portion and a mid-portion between the upper portion and lower portion, wherein the process stream is a process liquid containing solids particles;
- introducing a gas containing stream into the separation zone so as to generate gas bubbles in the process liquid such that the gas bubbles attach to a first portion of the solids particles thus promoting upward flow of the first portion of the solids particles within the separation zone;
- removing the first portion of the solids particles from the upper portion;
- removing a second portion of the solids particles from the mid-portion;
- removing a third portion of the solids particles from the lower portion;
- controlling flow of process liquid removed with the first portion, removed with the second portion and removed with the third portion so as to control amounts of solids particles in the first portion, second portion and third portion such that the first portion contains from 20% to 90% of the solid particles contained in the process stream, the second portion contains from 5% to 40% of the solid particles contained in the process stream, and the third portion contains from 5% to 40% of the solid particles contained in the process stream.
3 more elements
Dependencies are inferred from the claim text.