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Development of nature coagulant for carbon neutral water treatment

Research Project

Project/Area Number 16H05628
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Environmental conscious materials and recycle
Research InstitutionRyukoku University

Principal Investigator

Okuda Tetsuji  龍谷大学, 理工学部, 准教授 (60343290)

Research Collaborator ALI EMAN NOORI  マレーシア・パハン大学
Mito Masatoshi  The MitoMasa co. ltd
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2018: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2017: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2016: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
Keywords凝集剤 / 種子 / 浄水汚泥 / 水質 / 精製 / 抽出 / 肥料 / モリンガ / 凝集 / 汚泥 / ゲル化 / 栽培 / 上水汚泥 / 栄養素 / 栽培試験 / リン / 環境技術 / 植物 / 循環型 / 水資源 / 土木環境システム / 抽出方法 / 前洗浄 / 残留有機物質 / リサイクル / 循環型社会
Outline of Final Research Achievements

Improvement in the recycling rate of sludge generated during water treatment is required, and its usage in agriculture field is most difficult and necessary application. We focused on flocculants derived from seeds of tropical plants, Moringa oleifera, (hereinafter “Moring oleifera coagulant” referred to as MOC), the influence of pretreatment and others purification trials onto the DOC increase and recyclability of its sludge produced coagulation and sedimentation using MOC when using MOC were evaluated by cultivation experiment. MOC optimized pretreatment and extraction shows coagulation performance without increase of residual DOC, and the sludge produced coagulation and sedimentation with the MOC had no bad effect to plants growth and high P contents, concluding “be recyclable as soil”.

Academic Significance and Societal Importance of the Research Achievements

モリンガ凝集剤の能力や機能の増加とコスト減を行なえ、実用化が検討できるレベルの前処理法、精製方法や条件を見いだせたと考える。これは最適な精製法によって得た凝集剤中の不純物の低減と凝集能の評価によるものであるが、ここでは汚泥のリサイクル性という付加価値についても検討し、熱帯植物Moring oleiferaが自生可能な熱帯地方では上水処理を完全に循環型化するのに必要な、モリンガ汚泥の肥料的な性質や実際の生育データを栽培試験より得る事ができた。これらにより凝集能力および肥料的な性能に関連する基礎的な情報を得ることができ、持続可能な循環型社会を達成する為の基礎を構築できた。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (8 results)

All 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (4 results) (of which Peer Reviewed: 3 results) Presentation (2 results) (of which Invited: 1 results) Book (1 results)

  • [Int'l Joint Research] Universiti Malaysia Pahang(マレーシア・パハン大学)(マレーシア)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Moringa oleifera coagulation as pretreatment prior to microfiltration for membrane fouling mitigation2018

    • Author(s)
      Katalo Ronald、Okuda Tetsuji、Nghiem Long D.、Fujioka Takahiro
    • Journal Title

      Environmental Science: Water Research & Technology

      Volume: 4 Issue: 10 Pages: 1604-1611

    • DOI

      10.1039/c8ew00186c

    • NAID

      120006987928

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spatial distribution of hydrogen sulfide and sulfur species in coastal marine sediments Hiroshima Bay, Japan2018

    • Author(s)
      Asaoka Satoshi、Umehara Akira、Otani Sosuke、Fujii Naoki、Okuda Tetsuji、Nakai Satoshi、Nishijima Wataru、Takeuchi Koji、Shibata Hiroshi、Jadoon Waqar Azeem、Hayakawa Shinjiro
    • Journal Title

      Marine Pollution Bulletin

      Volume: 133 Pages: 891-899

    • DOI

      10.1016/j.marpolbul.2018.06.042

    • NAID

      120006486838

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Filtration Rate of the Ascidian Ciona savignyi and Its Possible Impact2018

    • Author(s)
      Nakai Satoshi、Shibata Jun-ya、Umehara Akira、Okuda Tetsuji、Nishijima Wataru
    • Journal Title

      Thalassas: An International Journal of Marine Sciences

      Volume: 34 Issue: 2 Pages: 271-277

    • DOI

      10.1007/s41208-017-0061-y

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 凝集沈殿処理の基礎と研究例2017

    • Author(s)
      奥田哲士
    • Journal Title

      環境技術

      Volume: 9 Pages: 488-491

    • Related Report
      2017 Annual Research Report
  • [Presentation] セラミック膜の不可逆ファウリングの制御2018

    • Author(s)
      桐本 一輝・アン ホアン・ 藤岡 貴浩・ 奥田 哲士
    • Organizer
      化学工学会第83年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 凝集沈殿処理の基礎と研究例2018

    • Author(s)
      奥田哲士
    • Organizer
      環境技術学会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Book] Water and Wastewater Treatment Technologies2019

    • Author(s)
      Bui, X.-T., Chiemchaisri, C., Fujioka, T., Varjani, S.
    • Total Pages
      526
    • Publisher
      springer
    • ISBN
      9789811332593
    • Related Report
      2018 Annual Research Report

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Published: 2016-04-21   Modified: 2020-03-30  

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