Processes and systems for removing per- and polyfluoroalkyl substances from fluids, such as potable water, using dimethylethanolamine resin
AssigneeResintech, Inc.
InventorsLawrence GOTTLIEB, Thomas SMITH, Michael GOTTLIEB
Life of this patent
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Abstract
The present disclosure relates to the use of a strongly basic anion exchange resin, in the form of dimethylethanolamine (DMAE) resin, for the removal of the per- and polyfluoroalkyl substances (PFASs) from fluids such as water.
Claims14
A process for removing perfluoroalkyl and/or polyfluoroalkyl substances from a fluid, comprising:
- providing an ion exchange system comprising a column defining an internal volume, and a bed of dimethylethanolamine resin disposed in the internal volume;
- and
- introducing the fluid into the column so that the fluid contacts the dimethylethanolamine resin.
A process for purifying water, comprising placing the water in contact with a dimethylethanolamine resin for a period of time sufficient to remove perfluoroalkyl and/or polyfluoroalkyl substances from the water.
An ion exchange system for removing perfluoroalkyl and/or polyfluoroalkyl substances from a fluid, comprising:
- a column defining an internal volume;
- a bed of dimethylethanolamine resin disposed in the internal volume;
- and
- a valve system configured to, during operation, control a flowrate of the fluid through the column.
Dependencies are inferred from the claim text.