Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1995-03-20
1996-07-02
Dawson, Robert A.
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210702, 210718, 2102212, 210787, 2105121, 96156, 96206, 96216, C02F 124
Patent
active
055319041
ABSTRACT:
Apparatus for removing volatile contaminant compounds from a liquid by sparging a cleaning gas therethrough comprises a volatile contaminant extraction assembly including a hollow porous tube surrounded by an outer jacket defining a gas plenum between the jacket and the porous tube; a contaminated liquid feed assembly including a nozzle for injecting liquid into the porous tube in a spiraling flow pattern around and along the porous tube; a gas-liquid separator assembly including a nonporous degassing tube coaxially aligned with and connected to the porous tube, a separator tube coaxially aligned with and connected to the degassing tube and flaring outwardly in diameter from the degassing tube, and a gas duct coaxially aligned with the separator tube and extending into the separator tube to collect and convey cleaning gas therefrom; a clean liquid collection assembly; and a gas discharge assembly. A method of removing volatile contaminants from a liquid comprises the general steps of introducing a stream of contaminated liquid to the hollow interior of a cylindrical porous tub in a thin film following a spiral flow pattern around and along the wall of the tube; controlling the physical characteristics of the liquid film and the flow pattern followed by the film through the tube; sparging cleaning gas through the wall of the tube and into the liquid film at a preselected flow rate; segregating contaminant laden cleaning gas from the liquid within the tube; and separating the cleaned liquid stream from the contaminant laden gas stream.
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Grisham Thomas L.
Peters Janet K.
Dawson Robert A.
Reifsnyder David A.
Revtech Industries, Inc.
Sefrna Ronald B.
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