Patent ID: 11883782
Assignee: PURELINE TREATMENT SYSTEMS, LLC
Field: Chemical engineering (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 8:
9. A method for purifying received water comprising a dissolved solute, comprising:
evaporating a quantity of draw solution solvent in a draw solution water removal unit, thereby forming evaporated draw solution solvent, wherein the draw solution solvent comprises a nonaqueous liquid having a boiling point lower than water;
collecting evaporated draw solution solvent at a condenser positioned above the draw solution water removal unit, the condenser positioned and configured to receive draw solution solvent evaporated upward from the draw solution water removal unit;
condensing the evaporated draw solution solvent from a gaseous state to a liquid state, thereby forming anhydrous liquid condensed draw solution solvent;
providing the anhydrous liquid condensed draw solution solvent to a second chamber of a forward osmosis container comprising a semipermeable membrane dividing the forward osmosis chamber into a first chamber and the second chamber, wherein the second chamber provides a water diluted draw solution solvent to the draw solution water removal unit; and
providing the received water at an input mass per unit of volume to the first chamber and providing a fluid output having an output mass per unit of volume greater than the input mass per unit of volume.