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.

公开(公告)号：US20240375056A1

公开(公告)日：2024-11-14

申请号：US18661333

申请日：2024-05-10

Applicant: Saltworks Technologies Inc.

Inventor： Derek MANDEL

IPC: B01D65/02 ,  B01D61/18 ,  B01D61/22 ,  B01D69/02

Abstract: A method for filtering suspended solids from a feed fluid involves filtering the feed fluid by pumping the feed fluid through a first retentate channel of a first cross-flow membrane unit and through a second retentate channel of a second cross-flow membrane unit that is connected in parallel with the first membrane unit. The retentate exiting the units after filtering is pumped through a suspended solids concentrating path. While the filtering is being performed by both membrane units, at least one of the membrane units may be cleaned by performing a forward flush on it in which a portion of the retentate from at least one of the first and the second retentate channels is drawn into a forward flushing path. The forward flushing path is fluidly connected to the retentate channel of the membrane unit that is being forward flushed.