Reverse Osmosis Systems and Methods

Abstract

Described herein is a reverse osmosis system, comprising: a feed source input, a high pressure feed pump fluidly connected to the feed source input, a reverse osmosis (RO) cascade fluidly connected to the high pressure feed pump; wherein the RO cascade comprises at least one low salt rejection reverse osmosis (LSRRO) stage including a LSRRO membrane and a seawater reverse osmosis (SWRO) stage including a SWRO membrane fluidly connected to the at least one LSRRO stage. Also described herein is a reverse osmosis method, comprising: providing the reverse osmosis system of claim 1, inputting a high salinity fluid into the feed source input, increasing the pressure of the high salinity fluid via the high pressure feed pump, performing reverse osmosis via the RO cascade, and collecting at least one of a concentrate and a permeate.

Dependencies are inferred from the claim text.