JP7697531B2 - 多孔質膜および造水方法 - Google Patents

多孔質膜および造水方法 Download PDF

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Publication number
JP7697531B2
JP7697531B2 JP2023568518A JP2023568518A JP7697531B2 JP 7697531 B2 JP7697531 B2 JP 7697531B2 JP 2023568518 A JP2023568518 A JP 2023568518A JP 2023568518 A JP2023568518 A JP 2023568518A JP 7697531 B2 JP7697531 B2 JP 7697531B2
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Japan
Prior art keywords
porous membrane
membrane
water
reverse osmosis
pores
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JP2023568518A
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English (en)
Japanese (ja)
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JPWO2024071005A1 (https=
JPWO2024071005A5 (https=
Inventor
高志 橘
俊 志村
正行 花川
茂久 花田
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Toray Industries Inc
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Toray Industries Inc
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    • 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

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  • 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)
JP2023568518A 2022-09-28 2023-09-25 多孔質膜および造水方法 Active JP7697531B2 (ja)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP2022154563 2022-09-28
JP2022154563 2022-09-28
JP2022193239 2022-12-02
JP2022193239 2022-12-02
JP2023034338 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 (3)

Publication Number Publication Date
JPWO2024071005A1 JPWO2024071005A1 (https=) 2024-04-04
JPWO2024071005A5 JPWO2024071005A5 (https=) 2024-11-20
JP7697531B2 true JP7697531B2 (ja) 2025-06-24

Family

ID=90477810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023568518A Active JP7697531B2 (ja) 2022-09-28 2023-09-25 多孔質膜および造水方法

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=)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015073916A (ja) 2013-10-04 2015-04-20 旭化成ケミカルズ株式会社 多孔性中空糸膜及びその製造方法
JP2017029934A (ja) 2015-08-03 2017-02-09 株式会社クラレ 中空糸膜、及び中空糸膜の製造方法
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
US20190126208A1 (en) 2016-04-21 2019-05-02 Imperial Innovations Limited Separation membranes
JP2021041313A (ja) 2019-09-06 2021-03-18 旭化成株式会社 中空糸膜

Family Cites Families (7)

* 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
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
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015073916A (ja) 2013-10-04 2015-04-20 旭化成ケミカルズ株式会社 多孔性中空糸膜及びその製造方法
JP2017029934A (ja) 2015-08-03 2017-02-09 株式会社クラレ 中空糸膜、及び中空糸膜の製造方法
US20190126208A1 (en) 2016-04-21 2019-05-02 Imperial Innovations Limited Separation membranes
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
JP2021041313A (ja) 2019-09-06 2021-03-18 旭化成株式会社 中空糸膜

Also Published As

Publication number Publication date
AU2023353924A1 (en) 2025-04-10
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

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