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Development of continuous layer coated membrane for fouling-resistant membrane distillation

研究課題

研究課題/領域番号 23K13588
研究種目

若手研究

配分区分基金
審査区分 小区分27010:移動現象および単位操作関連
研究機関神戸大学

研究代表者

Guan Kecheng  神戸大学, 先端膜工学研究センター, 助教 (10912446)

研究期間 (年度) 2023-04-01 – 2026-03-31
研究課題ステータス 交付 (2023年度)
配分額 *注記
4,290千円 (直接経費: 3,300千円、間接経費: 990千円)
2025年度: 910千円 (直接経費: 700千円、間接経費: 210千円)
2024年度: 780千円 (直接経費: 600千円、間接経費: 180千円)
2023年度: 2,600千円 (直接経費: 2,000千円、間接経費: 600千円)
キーワードMembrane distillation / Seawater desalination / Surface coating / Surface modification / Water treatment / Membrane separation
研究開始時の研究の概要

The objective of this research project is to develop advanced membranes that can effectively treat brine wastewater using membrane distillation (MD) technology. Currently, MD faces significant challenges due to membrane fouling, which results in process inefficiency and even failure, making it impractical for widespread use. To overcome the obstacle, it aims to develop an MD membrane that can resist both organic fouling and mineral scaling. By designing an appropriate membrane structure and chemistry, prolonged operation time and improved treatment efficacy for the MD process are anticipated.

研究実績の概要

This research project aims to develop suitable coatings for anti-fouling membrane distillation. The study investigates how coating structure and properties impact distillation performance and analyze interactions between coating materials and foulants to identify anti-fouling mechanisms. This year, a polyelectrolyte complex coating preparation method was developed, and the feasibility of membrane distillation was assessed.
1. A layer-by-layer assembly technique using oppositely charged polyelectrolytes was employed to coat the substrate membrane. The impact of assembling layers on coating morphology was evaluated.
2. The performance of coated membranes in membrane distillation with simulated seawater and real seawater was assessed to demonstrate their fouling resistance capabilities.

現在までの達成度 (区分)
現在までの達成度 (区分)

2: おおむね順調に進展している

理由

This year, a polymer coating consisting of polyethylenimine and sodium alginate was successfully developed to enhance the anti-fouling properties of membrane distillation. The coated membranes were tested for treating seawater contaminated with oils and minerals, showing promising results in terms of durability during desalination and concentration processes. A comparison with pristine membranes revealed clear advantages of the coatings. The effectiveness of a continuous coating layer structure for membranes used in membrane distillation has been demonstrated, suggesting that further studies based on this concept could progress well. Therefore, it is considered that the research is currently progressing rather smoothly.

今後の研究の推進方策

In order to enhance the anti-fouling performance of the membrane, it is necessary to investigate the mechanisms behind the coating that provides this feature. This will guide future designs of coating materials and structures. It is important to understand how specific functional groups in materials (such as hydrophilicity and metal-complexing capability) contribute to anti-fouling properties, along with examining the impact of a continuous layer structure. In 2024, different coating materials forming continuous layers will be developed to assess their ability to resist fouling. Furthermore, adjusting the amount of functional groups will be tried to determine how changes affect the anti-fouling performance of membrane distillation.

報告書

(1件)
  • 2023 実施状況報告書
  • 研究成果

    (8件)

すべて 2024 2023 その他

すべて 雑誌論文 (6件) (うち国際共著 4件、 査読あり 6件) 学会発表 (1件) 備考 (1件)

  • [雑誌論文] Wetting-and scaling-resistant superhydrophobic hollow fiber membrane with hierarchical surface structure for membrane distillation2024

    • 著者名/発表者名
      Zhang Pengfei、Xiang Shang、Gonzales Ralph Rolly、Li Zhan、Chiao Yu-Hsuan、Guan Kecheng、Hu Mengyang、Xu Ping、Mai Zhaohuan、Rajabzadeh Saeid、Nakagawa Keizo、Matsuyama Hideto
    • 雑誌名

      Journal of Membrane Science

      巻: 693 ページ: 122338-122338

    • DOI

      10.1016/j.memsci.2023.122338

    • 関連する報告書
      2023 実施状況報告書
    • 査読あり
  • [雑誌論文] Engineering PVDF omniphobic membranes with flower-like micro-nano structures for robust membrane distillation2024

    • 著者名/発表者名
      Xu Jie、Guan Kecheng、Luo Ping、He Shanshan、Matsuyama Hideto、Zou Dong、Zhong Zhaoxiang
    • 雑誌名

      Desalination

      巻: 578 ページ: 117442-117442

    • DOI

      10.1016/j.desal.2024.117442

    • 関連する報告書
      2023 実施状況報告書
    • 査読あり / 国際共著
  • [雑誌論文] Engineering high-flux poly (vinylidene fluoride) membranes with symmetric structure for membrane distillation via delayed phase inversion2024

    • 著者名/発表者名
      Xia Longbo、Guan Kecheng、He Shanshan、Luo Ping、Matsuyama Hideto、Zhong Zhaoxiang、Zou Dong
    • 雑誌名

      Separation and Purification Technology

      巻: 338 ページ: 126499-126499

    • DOI

      10.1016/j.seppur.2024.126499

    • 関連する報告書
      2023 実施状況報告書
    • 査読あり / 国際共著
  • [雑誌論文] Thin continuous membrane coating with high surface energy for comprehensive antifouling seawater distillation2023

    • 著者名/発表者名
      Jia Yuandong、Guan Kecheng、Mai Zhaohuan、Fang Shang、Li Zhan、Zhang Pengfei、Zou Dong、Jiang Xiaobin、He Gaohong、Matsuyama Hideto
    • 雑誌名

      Water Research

      巻: 244 ページ: 120439-120439

    • DOI

      10.1016/j.watres.2023.120439

    • 関連する報告書
      2023 実施状況報告書
    • 査読あり / 国際共著
  • [雑誌論文] Fabrication of hydrophobic bi-layer fiber-aligned PVDF/PVDF-PSF membranes using green solvent for membrane distillation2023

    • 著者名/発表者名
      Zou Dong、Xia Longbo、Luo Ping、Guan Kecheng、Matsuyama Hideto、Zhong Zhaoxiang
    • 雑誌名

      Desalination

      巻: 565 ページ: 116810-116810

    • DOI

      10.1016/j.desal.2023.116810

    • 関連する報告書
      2023 実施状況報告書
    • 査読あり / 国際共著
  • [雑誌論文] Improvement of anti-wetting and anti-scaling properties in membrane distillation process by a facile fluorine coating method2023

    • 著者名/発表者名
      Li Zhan、Zhang Pengfei、Chiao Yu-Hsuan、Guan Kecheng、Gonzales Ralph Rolly、Xu Ping、Mai Zhaohuan、Xu Guorong、Hu Mengyang、Kitagawa Tooru、Yoshioka Tomohisa、Matsuyama Hideto
    • 雑誌名

      Desalination

      巻: 566 ページ: 116936-116936

    • DOI

      10.1016/j.desal.2023.116936

    • 関連する報告書
      2023 実施状況報告書
    • 査読あり
  • [学会発表] Surface coatings for fouling-resistant membrane distillation2023

    • 著者名/発表者名
      Kecheng Guan
    • 学会等名
      化学工学会第54回秋季大会
    • 関連する報告書
      2023 実施状況報告書
  • [備考] Researchmap of Kecheng Guan

    • URL

      https://researchmap.jp/Kecheng_Guan

    • 関連する報告書
      2023 実施状況報告書

URL: 

公開日: 2023-04-13   更新日: 2024-12-25  

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