公开(公告)号：US20240424447A1

公开(公告)日：2024-12-26

申请号：US18750956

申请日：2024-06-21

Applicant: Saltworks Technologies Inc.

Inventor： Derek MANDEL ,  Hana LEE ,  Benjamin SPARROW

IPC: B01D61/02 ,  B01D61/08 ,  C02F1/44 ,  C02F103/08

Abstract: A reverse osmosis-based method and system for concentrating a saltwater. The system includes at least first and second reverse osmosis units fluidly connected in series. The membrane of the first reverse osmosis unit has at least a 95% rejection rate for sodium chloride, and the membrane of the second reverse osmosis unit has a 30% to 75% rejection rate for sodium chloride. Permeate from the second reverse osmosis unit is recycled to the first reverse osmosis unit for increased water recovery. Temperatures for the saltwater and/or the recycled permeate are controlled using heat exchangers to help ensure the reverse osmosis units' nominal performance.