AU2023353924A1 - Porous membrane and desalination method - Google Patents

Porous membrane and desalination method Download PDF

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Publication number
AU2023353924A1
AU2023353924A1 AU2023353924A AU2023353924A AU2023353924A1 AU 2023353924 A1 AU2023353924 A1 AU 2023353924A1 AU 2023353924 A AU2023353924 A AU 2023353924A AU 2023353924 A AU2023353924 A AU 2023353924A AU 2023353924 A1 AU2023353924 A1 AU 2023353924A1
Authority
AU
Australia
Prior art keywords
porous membrane
membrane
water
pores
reverse osmosis
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
AU2023353924A
Other languages
English (en)
Inventor
Shigehisa Hanada
Masayuki Hanakawa
Shun SHIMURA
Takashi Tachibana
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Publication of AU2023353924A1 publication Critical patent/AU2023353924A1/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/145—Ultrafiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/58—Multistep processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B01D71/34—Polyvinylidene fluoride
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/0283—Pore size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/20—Specific permeability or cut-off range
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/52—Crystallinity
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
AU2023353924A 2022-09-28 2023-09-25 Porous membrane and desalination method Pending AU2023353924A1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP2022-154563 2022-09-28
JP2022154563 2022-09-28
JP2022193239 2022-12-02
JP2022-193239 2022-12-02
JP2023-034338 2023-03-07
JP2023034338 2023-03-07
PCT/JP2023/034640 WO2024071005A1 (ja) 2022-09-28 2023-09-25 多孔質膜および造水方法

Publications (1)

Publication Number Publication Date
AU2023353924A1 true AU2023353924A1 (en) 2025-04-10

Family

ID=90477810

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2023353924A Pending AU2023353924A1 (en) 2022-09-28 2023-09-25 Porous membrane and desalination method

Country Status (6)

Country Link
EP (1) EP4596088A4 (https=)
JP (1) JP7697531B2 (https=)
KR (1) KR20250078440A (https=)
CN (1) CN119816358A (https=)
AU (1) AU2023353924A1 (https=)
WO (1) WO2024071005A1 (https=)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2600265B1 (fr) * 1986-06-20 1991-09-06 Rhone Poulenc Rech Membranes semi-permeables sechables et hydrophiles a base de polyfluorure de vinylidene
JP2010094670A (ja) * 2008-09-19 2010-04-30 Toray Ind Inc ポリフッ化ビニリデン系複合膜およびその製造方法
KR101179161B1 (ko) * 2009-11-12 2012-09-03 한국화학연구원 신규한 ｐｖｄｆ 중공사막 제조용 고분자 수지, 막오염 저항성이 우수한 ｐｖｄｆ 중공사막, 및 이의 제조방법
KR101462939B1 (ko) * 2011-11-16 2014-11-19 엘지전자 주식회사 친수성 폴리불화비닐리덴계 중공사 분리막 및 이의 제조방법
JP6274642B2 (ja) 2013-10-04 2018-02-07 旭化成株式会社 多孔性中空糸膜及びその製造方法
JP6577781B2 (ja) 2015-08-03 2019-09-18 株式会社クラレ 中空糸膜、及び中空糸膜の製造方法
US11065583B2 (en) * 2016-04-21 2021-07-20 Imperial College Innovations Limited Separation membranes
JP6561082B2 (ja) 2017-02-21 2019-08-14 株式会社神鋼環境ソリューション 水処理設備および水処理方法
JP6630689B2 (ja) 2017-02-21 2020-01-15 株式会社神鋼環境ソリューション 水処理設備および水処理方法
WO2019044312A1 (ja) * 2017-08-31 2019-03-07 オルガノ株式会社 水処理方法および水処理装置
JP7378248B2 (ja) * 2019-09-06 2023-11-13 旭化成株式会社 中空糸膜
JP2021176629A (ja) 2020-05-01 2021-11-11 三菱ケミカル株式会社 樹脂組成物の製造方法、多孔質膜の製造方法、及び多孔質膜

Also Published As

Publication number Publication date
JPWO2024071005A1 (https=) 2024-04-04
KR20250078440A (ko) 2025-06-02
CN119816358A (zh) 2025-04-11
EP4596088A1 (en) 2025-08-06
EP4596088A4 (en) 2026-03-11
WO2024071005A1 (ja) 2024-04-04
JP7697531B2 (ja) 2025-06-24

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