Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Reexamination Certificate
2005-09-27
2005-09-27
Lithgow, Thomas M. (Department: 1724)
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
C210S704000, C210S732000, C210S738000, C210S199000, C210S205000, C210S206000, C210S221200
Reexamination Certificate
active
06949195
ABSTRACT:
A method for removing contaminants from a liquid includes filtering objects of a relatively large dimension. The liquid is then mixed with additives to adjust the chemistry of the liquid. The liquid is pressurized and directed through a gasification device to dissolve gas into the liquid. This is accomplished by directing the liquid into an inlet of a hydrocyclone of the gasification device, directing the liquid exiting the hydrocyclone upwards to remove large bubbles, and removing liquid containing dissolved gas from a bottom portion of a vessel of the gasification device. The pressure of the liquid is then reduced and the liquid is introduced into a separation tank, and the contaminants are removed from the liquid by stratification. The treated water is removed from the separation tank, and sludge formed by skimming flocs from a liquid surface of the tank is subjected to a dewatering process.
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Matherly Thomas G.
Morse Dwain E.
Morse Wade O.
Friedman Jerry
Kelly Lowry & Kelley LLP
Lithgow Thomas M.
Morse Dwain E.
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