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US 11,660,574 B2Granted
Devices and methods for removing perfluorinated compounds from contaminated water
AssigneeUniversity of Kentucky Research Foundation
InventorsDibakar Bhattacharyya, Anthony Saad, Rollie Mills, Lindell Ormsbee, M. Abdul Mottaleb
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Abstract
Purification devices and methods remove perfluorinated compounds (PFCs) from PFC-contaminated water using temperature swing adsorption and desorption.
Claims6
A purification device for removing perfluorinated compounds (PFCs) from PFC-contaminated water, comprising:
- a membrane including a PFC-adsorbing temperature responsive polymer hydrogel in pores of the membrane;
- a contactor in which the membrane is contacted with the PFC-contaminated water and a temperature of the PFC-adsorbing temperature responsive polymer hydrogel is raised above a predetermined temperature at which PFCs are adsorbed from the PFC-contaminated water by the PFC-adsorbing temperature responsive polymer hydrogel;
- a heating device heating at least one of the PFC-contaminated water and the PFC-adsorbing temperature responsive polymer hydrogel in the contactor;
- a cooling device for cooling at least one of a cooling fluid and the PFC-adsorbing temperature responsive polymer hydrogel in the contactor to release PFCs from the PFC-adsorbing temperature responsive polymer hydrogel, regenerate the PFC-adsorbing temperature responsive polymer hydrogel and collect the PFCs in the cooling fluid;
- and
- a cooling fluid source, a PFC-contaminated water source and an inlet valve selectively connecting the cooling fluid source and the PFC-contaminated water source with the contactor.
3 more elements
Dependencies are inferred from the claim text.