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Development of a coagulation promoter for preventing coagulation inhibition and high efficiency drinking water treatment

Research Project

Project/Area Number 20760364
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Civil and environmental engineering
Research InstitutionFukushima National College of Technology

Principal Investigator

TAKAARA Tomoko  Fukushima National College of Technology, 建設環境工学科, 助教 (80455112)

Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords凝集沈殿 / 凝集阻害 / 藻類 / 凝集促進剤 / キトサン / 衛生工学 / 浄水工学 / 浄水処理
Research Abstract

The excess growth of cyanobacteria in semi-closed water areas causes coagulation inhibition in drinking water production. Goal of this study is to develop the coagulation promoter for preventing coagulation inhibition and to achieve high efficiency drinking water treatment. In this study, we analyzed inhibitory potential of capsule produced by Microcystis against the coagulation with PACl and coagulation promoting effect of chitosan. Major results obtained by this study are as follows.
-Capsule of one Microcystis cell consumes 1.2×10^<-7>(mg/cell) of PACl.
-Coagulation test using PACl and Chitosan was performed in the presence of Microcystis aeruginosa cells and organic matter. As a result, removal rate of turbidity increased by approximately 50% by using Chitosan as a coagulation promoter.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (9 results)

All 2011 2010

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (3 results)

  • [Journal Article] Identification and characterization of coagulation inhibitor proteins derived from cyanobacterium Microcystis aeruginosa2011

    • Author(s)
      Daisuke Sano, Shingo Ishifuji, Yuichi Sato, Yasutake Imae, Tomoko Takaara, Yoshifumi Masago, Tatsuo Omura
    • Journal Title

      Chemosphere 82

      Pages: 1096-1102

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Identification and characterization of coagulation inhibitor proteins derived from cyanobacterium Microcystis aeruginosa2011

    • Author(s)
      Daisuke Sano, Shingo Ishifuji, Yuichi Sato, Yasutake Imae, Tomoko Takaara, Yoshifumi Masago, Tatsuo Omura
    • Journal Title

      Chemosphere

      Volume: 82 Pages: 1096-1102

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Surface-retained organic matter of Microcystis aeruginosa inhibiting coagulation with polyaluminum2010

    • Author(s)
      Tomoko Takaara, Daisuke Sano, Yoshifumi Masago, Tatsuo Omura
    • Journal Title

      Water Research 44(13)

      Pages: 3781-3786

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Microcystis aeruginosa由来凝集阻害誘因タンパク質の同定2010

    • Author(s)
      石藤慎吾、佐藤有一、今江泰貴、高荒智子、佐野大輔、 真砂佳史、大村達夫
    • Journal Title

      水環境学会誌 33(6)

      Pages: 73-79

    • NAID

      130000307312

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Microcystis aeruginosa由来凝集阻害誘因タンパク質の同定2010

    • Author(s)
      石藤慎吾、佐藤有一、今江泰貴、高荒智子、佐野大輔、真砂佳史、大村達夫
    • Journal Title

      水環境学会誌

      Volume: 33(6) Pages: 73-79

    • NAID

      130000307312

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Surface-retained organic matter of Microcystis aeruginosa inhibiting coagulation with polyaluminum2010

    • Author(s)
      Tomoko Takaara, Daisuke Sano, Yoshifumi Masago, Tatsuo Omura
    • Journal Title

      Water Research

      Volume: 44(13) Pages: 3781-3786

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] キトサンの凝集補助による藻類由来有機物の凝集効果2011

    • Author(s)
      薄井瞳, 高荒智子
    • Organizer
      土木学会東北支部技術発表会
    • Place of Presentation
      東北工業大学
    • Year and Date
      2011-03-05
    • Related Report
      2010 Annual Research Report
  • [Presentation] キトサンの凝集補助効果についての検討2010

    • Author(s)
      新妻樹典, 高荒智子
    • Place of Presentation
      日本大学工学部
    • Year and Date
      2010-03-06
    • Related Report
      2010 Final Research Report 2009 Annual Research Report
  • [Presentation] キトサンの凝集補助による藻類由来有機物の凝集効果2010

    • Author(s)
      薄井瞳, 高荒智子
    • Place of Presentation
      東北工業大学香澄町キャンパス
    • Year and Date
      2010-03-05
    • Related Report
      2010 Final Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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