公开(公告)号：US11628403B2

公开(公告)日：2023-04-18

申请号：US17162463

申请日：2021-01-29

Applicant: KUWAIT INSTITUTE FOR SCIENTIFIC RESEARCH

Inventor： Mansour Ahmed ,  Rajesha Kumar ,  Garudachari Bhadrachari ,  Yousef Jassim Essa Al-Wazzan ,  Jibu Pallickel Thomas

IPC: B01D61/58 ,  B01D61/00 ,  B01D61/02 ,  C02F9/00 ,  C02F1/44 ,  C02F103/08

Abstract: The high water recovery hybrid membrane system for desalination and brine concentration combines nanofiltration, reverse osmosis and forward osmosis to produce pure water from seawater. The reject side of a nanofiltration unit receives a stream of seawater and outputs a brine stream. A permeate side of the nanofiltration unit outputs a permeate stream. A feed side of a reverse osmosis desalination unit receives a first portion of the permeate stream and outputs a reject stream. A permeate side of the reverse osmosis desalination unit outputs pure water. A draw side of at least one forward osmosis desalination unit receives the reject stream and outputs concentrated saline solution. A feed side of the at least one forward osmosis desalination unit receives a second portion of the permeate stream and outputs a dilute saline stream, which mixes with the first portion of the permeate stream fed to the reverse osmosis desalination unit.

公开(公告)号：US20210170338A1

公开(公告)日：2021-06-10

申请号：US17162463

申请日：2021-01-29

Applicant: KUWAIT INSTITUTE FOR SCIENTIFIC RESEARCH

Inventor： MANSOUR AHMED ,  Rajesha Kumar ,  Garudachari Bhadrachari ,  Yousef Jassim Essa Al-Wazzan ,  Jibu Pallickel Thomas

IPC: B01D61/58 ,  B01D61/02 ,  C02F9/00 ,  B01D61/00

Abstract: The high water recovery hybrid membrane system for desalination and brine concentration combines nanofiltration, reverse osmosis and forward osmosis to produce pure water from seawater. The reject side of a nanofiltration unit receives a stream of seawater and outputs a brine stream. A permeate side of the nanofiltration unit outputs a permeate stream. A feed side of a reverse osmosis desalination unit receives a first portion of the permeate stream and outputs a reject stream. A permeate side of the reverse osmosis desalination unit outputs pure water. A draw side of at least one forward osmosis desalination unit receives the reject stream and outputs concentrated saline solution. A feed side of the at least one forward osmosis desalination unit receives a second portion of the permeate stream and outputs a dilute saline stream, which mixes with the first portion of the permeate stream fed to the reverse osmosis desalination unit.

公开(公告)号：US10940439B1

公开(公告)日：2021-03-09

申请号：US16709812

申请日：2019-12-10

Applicant: KUWAIT INSTITUTE FOR SCIENTIFIC RESEARCH

Inventor： Mansour Ahmed ,  Rajesha Kumar ,  Garudachari Bhadrachari ,  Yousef Jassim Essa Al-Wazzan ,  Jibu Pallickel Thomas

IPC: B01D61/58 ,  C02F9/00 ,  B01D61/00 ,  B01D61/02 ,  C02F1/44 ,  C02F103/08

Abstract: The high water recovery hybrid membrane system for desalination and brine concentration combines nanofiltration, reverse osmosis and forward osmosis to produce pure water from seawater. The reject side of a nanofiltration unit receives a stream of seawater and outputs a brine stream. A permeate side of the nanofiltration unit outputs a permeate stream. A feed side of a reverse osmosis desalination unit receives a first portion of the permeate stream and outputs a reject stream. A permeate side of the reverse osmosis desalination unit outputs pure water. A draw side of at least one forward osmosis desalination unit receives the reject stream and outputs concentrated saline solution. A feed side of the at least one forward osmosis desalination unit receives a second portion of the permeate stream and outputs a dilute saline stream, which mixes with the first portion of the permeate stream fed to the reverse osmosis desalination unit.