System and method for purifying waste streams containing water reducible paints
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United States of America Patent
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-
Sep 10, 1996
Grant Date -
N/A
app pub date -
May 15, 1995
filing date -
May 15, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Methods for purifying aqueous waste streams containing a water reducible paint composition and equipment systems capable of conducting such methods are provided. In general terms the methods can be practiced by first providing an aqueous waste stream comprising a minor amount of a water reducible paint composition. This aqueous waste stream will commonly have a water content of at least 95 percent by weight. An acid, preferably sulfuric acid, is then admixed with the aqueous waste stream to form a suspension comprising water and precipitated paint compounds. Following the precipitation step a portion of the precipitated paint compounds are separated from the water.
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Cited Art Landscape
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