Patent ID: 11884567
Assignee: SALINE WATER CONVERSION CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 15:
16. A brine concentration system, comprising:
a divalent ion concentration unit;
a first reverse osmosis membrane unit;
a second reverse osmosis membrane unit;
a first brine concentrator; and
a second brine concentrator,, wherein, the divalent ion concentration unit is configured to receive a saline source stream at a retentate side of the divalent ion concentration unit, and output a retentate side stream and a permeate side stream,, the first reverse osmosis membrane unit is configured to receive at least a portion of the divalent ion concentration unit permeate side stream at a retentate side, and output a retentate side stream and a permeate side stream,, the second reverse osmosis membrane unit is configured to receive at least a portion of the first reverse osmosis unit retentate side stream at a retentate side, and output a retentate side stream and a permeate side stream,, the first brine concentrator is configured to receive a first portion of the second reverse osmosis membrane unit retentate side stream at a retentate side, and a second portion of the second reverse osmosis membrane unit retentate side stream at a permeate side, and output a retentate side stream and a permeate side stream,, the second brine concentrator is configured to receive a first portion of the first brine concentrator retentate side stream at a retentate side, and a second portion of the first brine concentrator retentate side stream at a permeate side, and output a retentate side stream and a permeate side stream, and, the first reverse osmosis membrane unit is configured to receive, at a retentate side only, at least a portion of the permeate side stream from the first brine concentrator and/or at least a portion of the permeate from the second brine concentrator, and the second reverse osmosis membrane unit is configured to receive, at a retentate side only, at least a portion of the permeate side stream from the first brine concentrator and/or at least a portion of the permeate from the second brine concentrator.