Liquid purification or separation – Flow – fluid pressure or material level – responsive – Diverse sensing means
Patent
1987-07-31
1988-08-16
Hart, Charles
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Diverse sensing means
210115, 210188, 210515, 2105321, 210539, B01D 2124
Patent
active
047642726
ABSTRACT:
A unitized system for the restoration of hydrocarbon-contaminated ground water and other water sources. The system employs two interconnected tanks having substantially the same elevation and mounted upon a transport skid. A first of these tanks provides for separation of the hydrocarbon from the water by gravimetric principles, and the second is a storage tank for water. An outlet from the water storage tank feeds water into a storage pan of an upright air sparging tower also mounted upon the skid. Water pumped from the pan is sprayed countercurrent to forced air flow in the tower so as to remove any entrained vapors from the water. A portion of the water handled by this pumping can be recycled to the separation tank. A level detector in the separation tank controls a preselected water level prior to introduction of contaminated water, and again when separated hydrocarbon has been removed from the separation tank to a product storage tank. The product storage tank is preferably mounted on the skid. The unit can be transported to a site for use, with the only requirements at the site being a source of electrical power and a source of water.
REFERENCES:
patent: 2284737 (1942-06-01), Hirshstein
patent: 2946443 (1960-07-01), Schmidt
patent: 3804252 (1972-01-01), Rishel
patent: 4367145 (1983-01-01), Simpson et al.
patent: 4378290 (1983-03-01), Kennedy
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