EA012219B1 - Устройство без ёмкостей и с замкнутым циклом для непрерывного опреснения - Google Patents

Устройство без ёмкостей и с замкнутым циклом для непрерывного опреснения Download PDF

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Publication number
EA012219B1
EA012219B1 EA200700082A EA200700082A EA012219B1 EA 012219 B1 EA012219 B1 EA 012219B1 EA 200700082 A EA200700082 A EA 200700082A EA 200700082 A EA200700082 A EA 200700082A EA 012219 B1 EA012219 B1 EA 012219B1
Authority
EA
Eurasian Patent Office
Prior art keywords
desalination
concentrate
closed cycle
water
raw materials
Prior art date
Application number
EA200700082A
Other languages
English (en)
Russian (ru)
Other versions
EA200700082A1 (ru
Inventor
Ави Эфрати
Original Assignee
Ави Эфрати
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ави Эфрати filed Critical Ави Эфрати
Publication of EA200700082A1 publication Critical patent/EA200700082A1/ru
Publication of EA012219B1 publication Critical patent/EA012219B1/ru

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025Reverse osmosis; Hyperfiltration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025Reverse osmosis; Hyperfiltration
    • B01D61/026Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/12Controlling or regulating
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/008Control or steering systems not provided for elsewhere in subclass C02F
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2311/00Details relating to membrane separation process operations and control
    • B01D2311/14Pressure control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2311/00Details relating to membrane separation process operations and control
    • B01D2311/24Quality control
    • B01D2311/243Electrical conductivity control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2311/00Details relating to membrane separation process operations and control
    • B01D2311/24Quality control
    • B01D2311/246Concentration control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2317/00Membrane module arrangements within a plant or an apparatus
    • B01D2317/04Elements in parallel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2317/00Membrane module arrangements within a plant or an apparatus
    • B01D2317/06Use of membrane modules of the same kind
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2319/00Membrane assemblies within one housing
    • B01D2319/02Elements in series
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/02Non-contaminated water, e.g. for industrial water supply
    • C02F2103/023Water in cooling circuits
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08Seawater, e.g. for desalination
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • Y02A20/131Reverse-osmosis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Nanotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
EA200700082A 2004-06-24 2005-06-23 Устройство без ёмкостей и с замкнутым циклом для непрерывного опреснения EA012219B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL162713A IL162713A (en) 2004-06-24 2004-06-24 Apparatus and methods for continuous desalination in closed circuit without containers
PCT/IL2005/000670 WO2006001007A2 (en) 2004-06-24 2005-06-23 Continuous closed-circuit desalination apparatus without containers

Publications (2)

Publication Number Publication Date
EA200700082A1 EA200700082A1 (ru) 2007-06-29
EA012219B1 true EA012219B1 (ru) 2009-08-28

Family

ID=35782173

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200700082A EA012219B1 (ru) 2004-06-24 2005-06-23 Устройство без ёмкостей и с замкнутым циклом для непрерывного опреснения

Country Status (21)

Country Link
US (1) US7695614B2 (https=)
EP (2) EP3040313A3 (https=)
JP (1) JP4675957B2 (https=)
KR (1) KR101052662B1 (https=)
CN (1) CN1972875B (https=)
AP (1) AP2349A (https=)
AU (1) AU2005257048B2 (https=)
BR (1) BRPI0511405A (https=)
CA (1) CA2572410C (https=)
DK (1) DK1781574T3 (https=)
EA (1) EA012219B1 (https=)
ES (1) ES2646181T3 (https=)
HU (1) HUE034905T2 (https=)
IL (1) IL162713A (https=)
MX (1) MX297988B (https=)
PL (1) PL1781574T3 (https=)
PT (1) PT1781574T (https=)
SG (2) SG128157A1 (https=)
UA (1) UA91022C2 (https=)
WO (1) WO2006001007A2 (https=)
ZA (1) ZA200700013B (https=)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102746336B (zh) 2005-06-29 2015-08-19 施瑞修德制药公司 氨基磷酸酯烷化剂前体药物
US20080105617A1 (en) * 2006-06-14 2008-05-08 Eli Oklejas Two pass reverse osmosis system
US8128821B2 (en) 2006-06-14 2012-03-06 Fluid Equipment Development Company, Llc Reverse osmosis system with control based on flow rates in the permeate and brine streams
US8529761B2 (en) 2007-02-13 2013-09-10 Fluid Equipment Development Company, Llc Central pumping and energy recovery in a reverse osmosis system
US8808538B2 (en) * 2008-01-04 2014-08-19 Fluid Equipment Development Company, Llc Batch-operated reverse osmosis system
US7892429B2 (en) 2008-01-28 2011-02-22 Fluid Equipment Development Company, Llc Batch-operated reverse osmosis system with manual energization
US8710406B2 (en) * 2008-09-19 2014-04-29 Conair Corporation Safety device and method for electric heating appliances
CN101596408A (zh) * 2009-03-30 2009-12-09 深圳市英尼克电器有限公司 全天候节水型反渗透装置及其方法
IL199700A (en) * 2009-07-05 2017-06-29 Desalitech Ltd A closed circuit desalination device fitting to improve the performance of reverse osmosis systems
KR101684852B1 (ko) * 2009-12-07 2016-12-09 플루이드 이큅먼트 디벨롭먼트 컴패니, 엘엘씨 삼투발전을 위한 장치와 방법
US9314742B2 (en) * 2010-03-31 2016-04-19 Toyota Motor Engineering & Manufacturing North America, Inc. Method and system for reverse osmosis predictive maintenance using normalization data
FI125583B (en) * 2011-06-21 2015-12-15 Emp Innovations Oy A method for providing fluid circulation in membrane filtration and membrane filtration apparatus
WO2013040420A2 (en) * 2011-09-15 2013-03-21 Deka Products Limited Partnership Systems, apparatus, and methods for a water purification system
US9345826B2 (en) 2011-09-15 2016-05-24 Deka Products Limited Partnership Recirculating fluid filtration system
US9695064B2 (en) 2012-04-20 2017-07-04 Fluid Equipment Development Company, Llc Reverse osmosis system with energy recovery devices
FR3013698B1 (fr) * 2013-11-22 2018-04-20 Bardot Group Module de desalinisation d'eau salee et module d'acceleration et//ou de pressurisation d'eau douce associe
BR112017009690B1 (pt) 2014-11-17 2022-08-09 Massachusetts Institute Of Technology Método de concentração de um componente menor de uma alimentação de líquido compreendendo um componente principal e o componente menor, e sistema de filtragem
US10214430B2 (en) 2015-03-04 2019-02-26 Israel Aerospace Industries Ltd. Water treatment system and method
WO2017192886A1 (en) 2016-05-04 2017-11-09 Massachusetts Institute Of Technology Multi-stage reverse osmosis systems and methods
US10569222B2 (en) 2016-05-20 2020-02-25 The Regents Of The University Of California System and method for flexible low-energy membrane-based liquid purification
IL246233B (en) 2016-06-13 2020-03-31 Desalitech Ltd Gore circuit continuous desalination systems with the help of a low energy pressure-converter and a high recovery ratio under conditions of constant current and variable pressure
IL247687B (en) 2016-09-07 2018-06-28 Israel Aerospace Ind Ltd Method and system for liquid treatment
US9975089B2 (en) 2016-10-17 2018-05-22 Fluid Equipment Development Company, Llc Method and system for performing a batch reverse osmosis process using a tank with a movable partition
CN108218002B (zh) 2016-12-01 2022-12-02 滨特尔民用水处理有限责任公司 水过滤系统和方法
IL251168B (en) * 2017-03-14 2019-08-29 Efraty Avi An integrated system for desalination using the reverse osmosis method and for cleaning sterilants to preserve their activity
IL251499B (en) * 2017-04-02 2019-02-28 Efraty Avi Reverse osmosis installation in a closed circuit with a hydraulic arm for desalination with low energy consumption and a high recovery ratio
IL254724B (en) * 2017-09-25 2020-06-30 Efraty Avi A two-stage desalination system in a closed circuit
CN108191120A (zh) * 2018-03-08 2018-06-22 湖南水口山有色金属集团有限公司 一种化学水处理设备
KR20200131849A (ko) 2018-03-13 2020-11-24 리뉴 헬스 리미티드 수처리 시스템
CN112912344B (zh) * 2018-08-29 2023-01-03 威立雅水务技术支持公司 高回收率可变体积反渗透膜系统
CN109761311B (zh) * 2018-10-25 2021-11-12 江苏东江环境服务有限公司 应用于工业浓盐污水的反渗透系统
CN112408548B (zh) * 2020-10-20 2021-08-31 浙江省海洋水产养殖研究所 凡纳滨对虾大规格苗种培育用水淡化装置
ES2991881T3 (es) * 2021-06-15 2024-12-05 Danfoss As Disposición de ósmosis inversa
EP4422783A4 (en) * 2021-10-29 2025-10-29 H2O Innovation Inc PERMEATE DUCT SEGMENT FOR REVERSE OSMOSIS PROCESS AND FLEXIBLE DUCT SEGMENT FOR WATER TREATMENT PLANT
CN120202167A (zh) 2022-11-17 2025-06-24 Ddp特种电子材料美国有限责任公司 具有压力交换的超滤系统和方法
KR102511519B1 (ko) 2022-12-13 2023-03-21 엘투이솔루션 주식회사 개선된 ccro와 cd모드를 포함하는 수처리 시스템 및 수처리 방법
KR102535939B1 (ko) 2023-02-16 2023-05-30 에스케이에코플랜트(주) 순차적 순환공정 역삼투압 탈염 장치
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WO2026072394A1 (en) 2024-09-27 2026-04-02 Ddp Specialty Electronic Materials Us, Llc Method and system for organic solvent recovery from a lithium-containing solution
CN119774694A (zh) * 2024-09-29 2025-04-08 西安热工研究院有限公司 一种海水淡化锅炉补水系统及其方法
KR102803475B1 (ko) 2024-10-02 2025-05-02 에스케이에코플랜트(주) 적응적 사이클 제어의 순차적 순환공정 삼투압 탈염 장치 및 적응적 사이클 제어 방법
KR102803474B1 (ko) 2024-10-02 2025-05-02 에스케이에코플랜트(주) 적응적 제어의 순환공정 삼투압 탈염 장치 및 적응적 제어 방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0599281A2 (de) * 1992-11-27 1994-06-01 WAT WASSER- UND UMWELTTECHNIK GmbH Verfahren und Vorrichtung zur Aufbereitung von Flüssigkeiten nach dem Prinzip der Umkehrosmose
JP2000288356A (ja) * 1999-02-02 2000-10-17 Toray Ind Inc 逆浸透膜分離装置および造水方法
US6299766B1 (en) * 2000-07-06 2001-10-09 Clark Permar Reverse osmosis filtering apparatus with concentrate dilution
WO2003013704A2 (en) * 2001-08-05 2003-02-20 Avi Efraty Variable pressure closed circuit desalination

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10112719A1 (de) * 2001-03-14 2002-10-02 Ludwig Michelbach Umkehrosmose-Anlage
DE2622461A1 (de) * 1976-05-20 1977-11-24 Didier Werke Ag Verfahren und vorrichtung zur durchfuehrung der umgekehrten osmose
US4814086A (en) * 1985-10-03 1989-03-21 Bratt Russell I Method and apparatus for fluid treatment by reverse osmosis
HU200563B (en) * 1987-03-06 1990-07-28 Laszlo Szuecs Method and apparatus for treating liquids consist of foreign matter by diaphragm filter device
JP2852958B2 (ja) * 1990-05-01 1999-02-03 日東電工株式会社 膜モジュールの運転方法
DE4331102C2 (de) * 1993-09-14 2003-04-17 Dwa Dialyse Wasser Aufbereitun Umkehrosmoseanlage und Verfahren zur Regelung einer Umkehrosmoseanlage
AU2251495A (en) * 1994-05-02 1995-11-29 Master Flo Technology Inc. Reverse osmosis filtration system
JPH08108048A (ja) * 1994-10-12 1996-04-30 Toray Ind Inc 逆浸透分離装置及び逆浸透分離方法
DE19520917A1 (de) 1995-06-08 1996-12-12 Schael Wilfried Umkehrosmoseanlage sowie Verfahren und Vorrichtung zu ihrer Regelung
JP3327371B2 (ja) * 1996-03-05 2002-09-24 株式会社 日立インダストリイズ 膜式液濃縮装置
US6139724A (en) * 1996-03-21 2000-10-31 Seitz-Filter-Werke Gmbh Und Co. Procedure and device for filtration of fluids using MF modules
JP4472050B2 (ja) 1998-10-20 2010-06-02 日東電工株式会社 造水装置および造水方法
WO2002055182A1 (en) * 2001-01-09 2002-07-18 Teknowsmartz Innovations/Technology Inc. Reverse osmosis system with controlled recirculation
BR0209036A (pt) 2001-04-18 2007-01-02 Buddy Don Gray método e aparelho para um sistema de separação tangencial recirculante
US7264737B2 (en) * 2001-10-05 2007-09-04 Ionics, Incorporated Control of water treatment system with low level boron detection
US6905604B2 (en) * 2003-01-29 2005-06-14 New Mexico Technical Research Foundation Method of converting feedwater to fresh water
IL157430A (en) * 2003-08-17 2009-08-03 Avi Efraty Apparatus for continuous closed circuit desalination under variable pressure with a single container

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0599281A2 (de) * 1992-11-27 1994-06-01 WAT WASSER- UND UMWELTTECHNIK GmbH Verfahren und Vorrichtung zur Aufbereitung von Flüssigkeiten nach dem Prinzip der Umkehrosmose
JP2000288356A (ja) * 1999-02-02 2000-10-17 Toray Ind Inc 逆浸透膜分離装置および造水方法
US6299766B1 (en) * 2000-07-06 2001-10-09 Clark Permar Reverse osmosis filtering apparatus with concentrate dilution
WO2003013704A2 (en) * 2001-08-05 2003-02-20 Avi Efraty Variable pressure closed circuit desalination

Also Published As

Publication number Publication date
MXPA06014788A (es) 2007-06-22
AP2349A (en) 2012-01-16
EP1781574A4 (en) 2010-02-17
HUE034905T2 (hu) 2018-03-28
SG153859A1 (en) 2009-07-29
PL1781574T3 (pl) 2018-01-31
CN1972875A (zh) 2007-05-30
CA2572410A1 (en) 2006-01-05
ZA200700013B (en) 2008-02-27
AU2005257048B2 (en) 2010-01-14
US20080023410A1 (en) 2008-01-31
JP4675957B2 (ja) 2011-04-27
JP2008503342A (ja) 2008-02-07
US7695614B2 (en) 2010-04-13
DK1781574T3 (da) 2017-11-20
BRPI0511405A (pt) 2007-12-04
CA2572410C (en) 2013-01-08
EP3040313A2 (en) 2016-07-06
SG128157A1 (en) 2007-01-30
CN1972875B (zh) 2013-03-20
EP3040313A3 (en) 2016-11-23
PT1781574T (pt) 2017-11-14
ES2646181T3 (es) 2017-12-12
AU2005257048A1 (en) 2006-01-05
UA91022C2 (ru) 2010-06-25
WO2006001007A2 (en) 2006-01-05
AP2007003896A0 (en) 2007-02-28
EA200700082A1 (ru) 2007-06-29
KR20070035554A (ko) 2007-03-30
MX297988B (es) 2012-04-09
WO2006001007A3 (en) 2006-02-09
KR101052662B1 (ko) 2011-07-28
EP1781574A2 (en) 2007-05-09
IL162713A (en) 2011-04-28
EP1781574B1 (en) 2017-08-09
IL162713A0 (en) 2005-11-20

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