Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2011-04-12
2011-04-12
Barry, Chester T (Department: 1797)
Liquid purification or separation
Processes
Treatment by living organism
C210S621000, C210S622000, C210S623000, C210S626000, C210S628000, C210S754000, C210S758000, C210S805000
Reexamination Certificate
active
07922907
ABSTRACT:
A method for removing contaminant from feedwater by forming a dispersion comprising bubbles of a treatment gas in a continuous phase comprising feedwater, wherein the bubbles have a mean diameter of less than about 5 μm and wherein the treatment gas is selected from the group consisting of air, oxygen, and chlorine. A method for removing contaminants from a feedwater by subjecting a fluid mixture comprising feedwater and a treatment gas to a shear rate greater than 20,000 s−1in a high shear device to produce a dispersion of treatment gas in a continuous phase of the feedwater. A system for treating feedwater to remove contaminants therefrom is also presented, the system comprising at least one high shear mixing device comprising at least one generator comprising a rotor and a stator separated by a shear gap; and a pump configured for delivering feedwater and treatment gas to the high shear mixing device.
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Anthony Rayford G.
Bagherzadeh Ebrahim
Borsinger Gregory G.
Hassan Abbas
Hassan Aziz
Barry Chester T
H R D Corporation
Porter Hedges LLP
Westby Timothy S.
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