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：US10308524B1

公开(公告)日：2019-06-04

申请号：US16247825

申请日：2019-01-15

Applicant: KUWAIT INSTITUTE FOR SCIENTIFIC RESEARCH

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

IPC: C02F1/00

Abstract: The pressure-reduced saline water treatment system combines both forward osmosis and reverse osmosis techniques for the desalination of salt water, such as seawater. A feed side of the reverse osmosis desalination unit is in fluid communication with the feed side of the forward osmosis desalination unit, such that seawater drawn through the feed side of the forward osmosis desalination unit is fed into the feed side of the reverse osmosis desalination unit. The reverse osmosis desalination unit outputs product water extracted from the seawater from a permeate side thereof. The feed side of the reverse osmosis desalination unit outputs a reject stream, which is fed to a draw side of the forward osmosis desalination unit, such that the draw side of the forward osmosis desalination unit receives the reject stream and outputs concentrated brine.

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.