公开(公告)号：US20170173533A1

公开(公告)日：2017-06-22

申请号：US15125294

申请日：2015-03-13

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Hua WANG ,  Hareesh Kumar Reddy KOMMEPALLI ,  Andrew Philip SHAPIRO

IPC: B01D61/02 ,  E21B43/20 ,  C02F1/44 ,  B01D61/08 ,  C02F1/00

CPC classification number: B01D61/025 ,  B01D61/02 ,  B01D61/022 ,  B01D61/08 ,  B01D2317/00 ,  B01D2317/02 ,  C02F1/008 ,  C02F1/441 ,  C02F2209/005 ,  E21B43/20

Abstract: A reverse osmosis unit for processing a feed solution is provided. The unit includes a pressure vessel includes an inlet end, an outlet end, and a vessel body extending between the inlet end and the outlet end. The reverse osmosis unit further includes a plurality of first membrane modules positioned within the pressure vessel. Each first membrane module of the plurality of first membrane modules has a first salt permeance value. At least one second membrane module is positioned within the pressure vessel and coupled in flow communication to the plurality of first membrane modules. The at least one second membrane module has a second salt permeance value that is different from the first salt permeance value.