Flotation unit for purifying water, such as a CFU (compact flotation unit)
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United States of America Patent
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Mar 15, 2016
Grant Date -
Aug 15, 2013
app pub date -
Apr 8, 2011
filing date -
Apr 12, 2010
priority date (Note) -
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Abstract
A flotation unit for purifying water, comprising at least a separator tank, a supply duct to a tank inlet, outlets for gas, oil and water from the tank, and a gas injector located in the supply duct, said gas injector comprising a venturi section having an inner diameter and a cross-sectional area smaller than a cross-sectional area of the supply duct, an ejector arranged in the venturi section and having an outer side facing an inside surface of the venturi section, an inner side facing a longitudinal center axis of the venturi section, a downstream side, and a upstream side, the ejector comprising an annular gas distribution chamber and a plurality of gas outlets arranged along a side of the ejector and connected to the gas distribution chamber, and a gas inlet for supplying gas to the gas distribution chamber, wherein the ejector has an outer diameter which is smaller than the inner diameter of the venturi section.
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