SEPARATION OF NEUTRALLY BUOYANT MATERIALS FROM WATER
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United States of America Patent
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Jun 12, 2014
app pub date -
Dec 6, 2013
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Dec 7, 2012
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Abstract
Described herein are methods of separating phase separated, neutrally buoyant materials from liquids and apparatuses for carrying out the methods. The methods and apparatuses employ nanobubbles. In certain embodiments, the nanobubbles may be formed in solutions of hydrophobically modified water soluble polymers. The methods result in removal of 90% by weight or more of neutrally buoyant materials from liquids. The methods are useful in certain embodiments for separating neutrally buoyant oily mixtures from water produced by mining operations.
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