Reducing aqueous boron concentrations with reverse osmosis membranes operating at a high pH
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United States of America Patent
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Oct 5, 1993
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N/A
app pub date -
May 1, 1992
filing date -
May 1, 1992
priority date (Note) -
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Abstract
A method of treating an aqueous charge liquid, such as oilfield produced waters, containing boron and solubilized hydrocarbon compounds to reduce boron concentration, which comprises water softening to remove substantially all divalent cations, raising the pH of the liquid above about 9.5, and driving the liquid through a reverse osmosis membrane.
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