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Optimization of interfacial polymerization to fabricate thin-film composite hollow fiber membranes in modules for brackish water reverse osmosis.

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Title: Optimization of interfacial polymerization to fabricate thin-film composite hollow fiber membranes in modules for brackish water reverse osmosis.
Authors: Yang, Tianshi1 (AUTHOR), Wan, Chun Feng1 (AUTHOR), Zhang, Junyou2 (AUTHOR), Gudipati, Chakravarthy2 (AUTHOR), Chung, Tai-Shung1 (AUTHOR) chencts@nus.edu.sg
Source: Journal of Membrane Science. May2021, Vol. 626, pN.PAG-N.PAG. 1p.
Subjects: Reverse osmosis, Hollow fibers, Brackish waters, Saline water conversion, Fibrous composites, Composite membranes (Chemistry)
Abstract: The development of commercial-scale thin-film composite (TFC) hollow fiber membranes and modules for reverse osmosis (RO) has been lagging behind spiral wound TFC flat-sheet membranes and modules for many years. The delay arises from the challenges of synthesizing a defect-free polyamide selective layer on hollow fibers in modules. In order to solve this problem, a novel interfacial polymerization method is presented in this work to fabricate 1-inch TFC hollow fiber membrane modules for RO applications. By circulating the m-phenylenediamine (MPD) solution on the lumen side under a positive pressure and circulating the trimesoyl chloride (TMC) solution at the atmosphere pressure, a strong, uniform and defect-free polyamide selective layer is formed on the inner surface of hollow fiber membranes in modules. Under pressure, not only MPD monomers are evenly distributed on the inner surface of each hollow fiber substrate in modules, but also sufficient MPD monomers can retain in the substrate pores for further reaction with TMC monomers. The best RO performance obtained by this newly developed TFC hollow fiber membrane module has a water permeability of 4.49 L m−2 h−1 bar−1 and a NaCl rejection of ~99%, using a feed solution of 1000 ppm NaCl under a transmembrane pressure of 20 bar. The novel interfacial polymerization method may provide useful insights to fabricate TFC hollow fiber membrane modules for desalination of brackish water. [Display omitted] • A novel IP method was developed to fabricate 1-inch TFC hollow fiber membrane module. • A defect-free polyamide was formed on the inner surface of 200 fibers in each module. • Fabrication of TFC hollow fibers in 1-inch modules was optimized for RO applications. • The highest RO water permeability is 4.49 LMH/bar with a NaCl rejection of ~99%. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Membrane Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 149220166
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PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Optimization of interfacial polymerization to fabricate thin-film composite hollow fiber membranes in modules for brackish water reverse osmosis.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Yang%2C+Tianshi%22">Yang, Tianshi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wan%2C+Chun+Feng%22">Wan, Chun Feng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Junyou%22">Zhang, Junyou</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gudipati%2C+Chakravarthy%22">Gudipati, Chakravarthy</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chung%2C+Tai-Shung%22">Chung, Tai-Shung</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chencts@nus.edu.sg</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Membrane+Science%22">Journal of Membrane Science</searchLink>. May2021, Vol. 626, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Reverse+osmosis%22">Reverse osmosis</searchLink><br /><searchLink fieldCode="DE" term="%22Hollow+fibers%22">Hollow fibers</searchLink><br /><searchLink fieldCode="DE" term="%22Brackish+waters%22">Brackish waters</searchLink><br /><searchLink fieldCode="DE" term="%22Saline+water+conversion%22">Saline water conversion</searchLink><br /><searchLink fieldCode="DE" term="%22Fibrous+composites%22">Fibrous composites</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+membranes+%28Chemistry%29%22">Composite membranes (Chemistry)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The development of commercial-scale thin-film composite (TFC) hollow fiber membranes and modules for reverse osmosis (RO) has been lagging behind spiral wound TFC flat-sheet membranes and modules for many years. The delay arises from the challenges of synthesizing a defect-free polyamide selective layer on hollow fibers in modules. In order to solve this problem, a novel interfacial polymerization method is presented in this work to fabricate 1-inch TFC hollow fiber membrane modules for RO applications. By circulating the m-phenylenediamine (MPD) solution on the lumen side under a positive pressure and circulating the trimesoyl chloride (TMC) solution at the atmosphere pressure, a strong, uniform and defect-free polyamide selective layer is formed on the inner surface of hollow fiber membranes in modules. Under pressure, not only MPD monomers are evenly distributed on the inner surface of each hollow fiber substrate in modules, but also sufficient MPD monomers can retain in the substrate pores for further reaction with TMC monomers. The best RO performance obtained by this newly developed TFC hollow fiber membrane module has a water permeability of 4.49 L m−2 h−1 bar−1 and a NaCl rejection of ~99%, using a feed solution of 1000 ppm NaCl under a transmembrane pressure of 20 bar. The novel interfacial polymerization method may provide useful insights to fabricate TFC hollow fiber membrane modules for desalination of brackish water. [Display omitted] • A novel IP method was developed to fabricate 1-inch TFC hollow fiber membrane module. • A defect-free polyamide was formed on the inner surface of 200 fibers in each module. • Fabrication of TFC hollow fibers in 1-inch modules was optimized for RO applications. • The highest RO water permeability is 4.49 LMH/bar with a NaCl rejection of ~99%. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Membrane Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.memsci.2021.119187
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Reverse osmosis
        Type: general
      – SubjectFull: Hollow fibers
        Type: general
      – SubjectFull: Brackish waters
        Type: general
      – SubjectFull: Saline water conversion
        Type: general
      – SubjectFull: Fibrous composites
        Type: general
      – SubjectFull: Composite membranes (Chemistry)
        Type: general
    Titles:
      – TitleFull: Optimization of interfacial polymerization to fabricate thin-film composite hollow fiber membranes in modules for brackish water reverse osmosis.
        Type: main
  BibRelationships:
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      – PersonEntity:
          Name:
            NameFull: Yang, Tianshi
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          Name:
            NameFull: Wan, Chun Feng
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            NameFull: Zhang, Junyou
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            NameFull: Gudipati, Chakravarthy
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            NameFull: Chung, Tai-Shung
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            – D: 15
              M: 05
              Text: May2021
              Type: published
              Y: 2021
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            – Type: issn-print
              Value: 03767388
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            – Type: volume
              Value: 626
          Titles:
            – TitleFull: Journal of Membrane Science
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