Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1995-07-20
1997-12-30
Lithgow, Thomas M.
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210707, 210201, 210202, 2102212, 210256, 210322, 210704, 209170, 209164, C02F 124, B03D 124
Patent
active
057026122
ABSTRACT:
A flotation method and apparatus for separating a selected constituent from an effluent of an industrial process is provided. The apparatus includes a conditioning tank and a flotation cell. The conditioning tank allows mixing a flotation reagent with an effluent and includes a mechanism for also dissolving gas in the effluent within the conditioning tank. The flotation cell includes a dissolved gas flotation chamber having an overflow for recovering the selected constituent and a tailings drain. In addition, the flotation cell also includes an added gas flotation chamber having a sparger for injecting gas into the effluent, an overflow for recovering the selected constituent and a tailings drain.
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"Application of Air Flotation to Refinery Waste Waters" by Rohlich Industrial and Engineering Chemistry vol. 46, No. 2 Feb. 1954.
Lithgow Thomas M.
University of Kentucky Research Foundation
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