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Fundamental control of membrane fouling based on detailed information on biopolymers in surface water

Research Project

Project/Area Number 18H03789
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 22:Civil engineering and related fields
Research InstitutionHokkaido University

Principal Investigator

Kimura Katsuki  北海道大学, 工学研究院, 教授 (10292054)

Co-Investigator(Kenkyū-buntansha) 西村 紳一郎  北海道大学, 先端生命科学研究院, 教授 (00183898)
山村 寛  中央大学, 理工学部, 教授 (40515334)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥42,510,000 (Direct Cost: ¥32,700,000、Indirect Cost: ¥9,810,000)
Fiscal Year 2020: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2019: ¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Fiscal Year 2018: ¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Keywords膜ファウリング / バイオポリマー / 浄水処理 / LC-OCD / QCM-D / 浄水膜処理 / アルギン酸 / BSA / フミン質 / 膜処理 / 多糖類 / タンパク質 / ファウリングポテンシャル / 膜ろ過 / 水処理
Outline of Final Research Achievements

In previous studies, the importance of biopolymers (hydrophilic organic macro-molecules) in evolution of fouling of membranes filtering surface water was pointed out. In this study, a new method for isolation of biopolymers from surface water was established. It was found that the new method provided significantly high rates of recovery and purity of biopolymers. Physical-chemical properties and fouling potentials of the biopolymers isolated from various drinking water sources were investigated. It turned out that the properties isolated from natural water were considerably different from those of model biopolymers (e.g., alginate) used often in previous researches. Fouling potentials of the isolated biopolymers were assessed by using QCM. Information obtained by this assessment could be used for efficient selection of materials for new anti-fouling membranes.

Academic Significance and Societal Importance of the Research Achievements

自然水中有機物にBPが占める割合は低く、BPの詳細な特性を検討した例は希少である。BPの回収および精製を本研究と同程度のデータ密度で実施した例はおそらく皆無である。BPの入手困難さからモデル物質(アルギン酸が多用される)を用いたファウリング研究が多く実施されてきたが、本研究ではモデル物質とBPの諸特性は大きく異なることが明確に示され、モデル物質を用いたファウリング研究の有用性は低いこともまた明確となった。本研究で提案した方法により得ることができたBPを様々な材質のセンサーを用いたQCM-D分析に供することで、BPによる膜ファウリングが生じにくい膜材質を適切に選定できる可能性が示された。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (11 results)

All 2021 2020 2019 2018

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] Irreversible fouling in hollow-fiber PVDF MF/UF membranes filtering surface water: Effects of precoagulation and identification of the foulant2020

    • Author(s)
      Katsuki Kimura and Keita Kume
    • Journal Title

      Journal of Membrane Science

      Volume: 602 Pages: 117975-117975

    • DOI

      10.1016/j.memsci.2020.117975

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Membrane fouling caused by lipopolysaccharides: a suggestion for alternative model polysaccharides for MBR fouling research2019

    • Author(s)
      Katsuki Kimura, Takayuki Kakuda, Hiroyuki Iwasaki
    • Journal Title

      Separation and Purification Technology

      Volume: 印刷中 Pages: 224-233

    • DOI

      10.1016/j.seppur.2019.04.059

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] 水道原水中バイオポリマーの精製回収およびファウリングポテンシャル評価2021

    • Author(s)
      冨永勘太、永井梨奈、羽深昭、木村克輝
    • Organizer
      第55回日本水環境学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] サイズ分画した表流水中バイオポリマーの ファウリングポテンシャル評価2020

    • Author(s)
      永井梨奈、冨永勘太、木村克輝
    • Organizer
      令和2年度水道研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] セラミック平膜を用いた浄水処理における膜ファウリングの抑制2020

    • Author(s)
      坂本秀樹、久米啓太、木村克輝、土屋達
    • Organizer
      令和2年度水道研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Characterization Of Biopolymers Isolated From Multiple Drinking Water Sources2019

    • Author(s)
      Kanta Tominaga, Keita Kume, Katsuki Kimura
    • Organizer
      NOM7 IWA Specialist Conference on Natural Organic Matter 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mitigation Of Membrane Fouling In Flat-sheet Ceramic Membranes Used For Drinking Water Treatment2019

    • Author(s)
      Hideki Sakamoto, Keita Kume, Katsuki Kimura
    • Organizer
      NOM7 IWA Specialist Conference on Natural Organic Matter 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Membrane fouling caused by biopolymers in surface water.2018

    • Author(s)
      Katsuki Kimura
    • Organizer
      European Conference on Fluid-Particle Separation
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 凝集処理のUF膜ファウリング抑制効果:MF膜との比較2018

    • Author(s)
      久米啓太、木村克輝
    • Organizer
      水道研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 表流水中バイオポリマーの精製回収とキャラクタリゼーション2018

    • Author(s)
      冨永勘太、久米啓太、木村克輝
    • Organizer
      第53回日本水環境学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] セラミック平膜を用いた浄水処理における膜ファウリングの抑制2018

    • Author(s)
      坂本秀樹、久米啓太、木村克輝
    • Organizer
      第53回日本水環境学会年会
    • Related Report
      2018 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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