Forward osmosis separation processes

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United States of America Patent

PATENT NO 9822021
APP PUB NO 20160340212A1
SERIAL NO

15161284

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Abstract

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Separation processes using forward osmosis are disclosed generally involving the extraction of a solvent from a first solution to concentrate a solute therein by using a second concentrated solution to draw the solvent from the first solution across a semi-permeable membrane. One or both of the solute and solvent may be a desired product. By manipulating the equilibrium of the soluble and insoluble species of solute within the second solution, a saturated second solution can be used to generate osmotic pressure on the first solution. The various species of solute within the second solution can be recovered and recycled through the process to affect the changes in equilibrium and eliminate waste products. Enhanced efficiency may result from using low grade waste heat from industrial or commercial sources.

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Patent Owner(s)

Patent OwnerAddress
YALE UNIVERSITYTWO WHITNEY AVENUE NEW HAVEN CT 06510

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Elimelech, Menachem New Haven, US 12 129
McGinnis, Robert L Cambridge, US 28 329

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