Removal of aluminum and sulfate ions from aqueous solutions
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United States of America Patent
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Aug 16, 1994
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N/A
app pub date -
Apr 19, 1993
filing date -
Apr 19, 1993
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Abstract
A process for removing aluminum and sulfate values from an aqueous solution containing the same which comprises passing the solution through a semi-permeable membrane in a pressure vessel. The permeate solution is depleted of aluminum and sulfate ions and the concentrate solution is concentrated in aluminum and sulfate ions. The concentrate solution can be re-used in alum manufacture and the permeate solution can be discharged into public waterways without further purification.
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