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Application of Photoreactive Functional Polymer Gels to Water Quality Control Systems

Research Project

Project/Area Number 10555195
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Civil and environmental engineering
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

KUBA Takahiro  Kyushu Univ., Dept. of Civil Eng., Associate Professor, 工学研究科, 助教授 (60284527)

Co-Investigator(Kenkyū-buntansha) OISHI Kyoko  Kyushu Univ., Dept. of Civil Eng., Research Associate, 工学研究科, 助手 (20110835)
IREI Masahiro  Kyushu Univ., Dept. of Applied Chemical Eng., Professor, 工学研究科, 教授 (30001986)
KUSUDA Tetuya  Kyushu Univ., Dept. of Civil Eng., Professor, 工学研究科, 教授 (50037967)
YAMANISI Hiroyuki  Kyushu Univ., Dept. of Civil Eng., Research Associate, 工学研究科, 助手 (20240062)
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥13,500,000 (Direct Cost: ¥13,500,000)
Fiscal Year 1999: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1998: ¥11,300,000 (Direct Cost: ¥11,300,000)
KeywordsIntelligent material / Water quality / Waste water treatment / Functional polymer gel / Photoreactive gel / Photochromism / NiPAAm-CH gel / Thermo-responsive gel
Research Abstract

1. Control and Prevention of Excessive Phytoplankton Growth by Photochromism :
This study intends to investigate control and prevention of excessive phytoplankton growth by reducing light levels below those necessary for photosynthesis. The shield sunlight, photochromic (PC) films, which show photochromism such as colorless forms turn to colored forms by ultraviolet irradiation, were prepared. The PC films containing Spironaphthoxazine showed excellent photocoloration under sunlight irradiation, and they maintained the photocoloration for a long period. However the results of algal growth potential tests with the PC films were the opposite to what we had expected. While the growth of mixed algal cultures was controlled with the PC films under sunlight irradiation, the application of the PC films was not successful for the prevention of pure cultures M. aeruginosa growth. It was probably attributable to the difference between the wavelength for the PC films' maximum absorbance (600nm) an … More d the available wavelength for photosynthesis (680nm). The absorbance at 680nm by the PC films was 20%.
2. Application of Photoreactive Functional Gels to Immobilization Matrices for Nitrification :
Functional gels reversibly swell and shrink in response to environmental conditions such as light, temperature, and pH ; excessively light is a clean and easy environmental stimulus to control. The volume changes induced by light stimuli may induce the current of substrate between solvent phase and gel phase, and furthermore chlorophylin (CH) incorporated into polymer chains may have an affinity to substrate, thereby theses photoreactive gels immobilized microorganisms may have a possibility for acceleration of nitrification. The purpose of this study is to clarify these effects of acceleration experimentally. NiPAAm-CH gels immobilized microorganisms were prepared by blending of N-isopropylamide (NiPAAm) with CH. The volume changes of the gels in response to light irradiation were observed clearly. Batch experiments showed that the gels had a possibility for acceleration of nitrification. Less

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] 衣川 圭: "フォトクロミズムを用いた光遮蔽による藻類過剰増殖の抑制"水環境学会誌. 22・11. 932-937 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 進藤 健治: "機能性ゲルの膨潤・収縮が硝化活性にもたらす効果"土木学会西部支部研究発表会. 816-817 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 衛藤 学: "AGP試験によるフォトクロミックフィルムの藻類増殖抑制効果の評価"土木学会西部支部研究発表会. 806-807 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 西山 大策: "機能性物質クロロフィリンを導入した硝化促進型包括固定化担体の開発"第36回下水道研究発表会講演集. 36. 574-576 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 衛藤 学: "光量制御による植物性プランクトン過剰増殖の抑制の試み"土木学会第54回年次学術講演会. 54. 70-71 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 進藤 健治: "機能性ゲルの体積相転移が硝化活性にもたらす効果"土木学会第54回年次学術講演会. 54. 334-335 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kei Kinugawa, Manabu Etoh, Takahiro Muba, Tetsuya Kusuda: "A Possibility of Control and Prevention of Excessive Phytoplankton Growth by Photochromism"Journal of Japan Society on Water Environment. vol. 22, no. 11. 932-937 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 衣川 圭: "フォトクロミズムを用いた光遮蔽による藻類過剰増殖の抑制"水環境学会誌. 22・11. 932-937 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 進藤 健治: "機能性ゲルの膨潤・収縮が硝化活性にもたらす効果"土木学会西部支部研究発表会. 816-817 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 衛藤学: "AGP試験によるフォトクロミックフィルムの藻類増殖抑制効果の評価"土木学会西部支部研究発表会. 806-807 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 西山大策: "機能性物資クロロフィリンを導入した硝化促進型包括固定化担体の開発"第36回下水道研究発表会講演集. 36. 574-576 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 衛藤学: "光量制御による植物性プランクトン過剰増殖の抑制の試み"土木学会第54回年次学術講演会. 54. 70-71 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 進藤健治: "機能性ゲルの体積相転移が硝化活性にもたらす効果"土木学会第54回年次学術講演会. 54. 334-335 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 進藤 健治: "機能性ゲルの体積相転移を利用した廃水処理" 第32回日本水環境学会年会講演概要集. 32. 146 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 近田 泰章: "メカノケミカルピストンの水質変換システムへの応用" 平成9年度土木学会西部支部研究発表会概要集. 1056-1057 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 上原 博志: "電気応答性PVA-PAAゲル固定化菌体を用いた脱窒システムの検討" 平成9年度土木学会西部支部研究発表会概要集. 1054-1055 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 衣川 圭: "フォトクロミック材料を用いた光遮蔽による植物性プランクトンの増殖抑制効果" 平成9年度土木学会西部支部研究発表会概要集. 1060-1061 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 衣川 圭: "フォトクロミックフィルムを用いた光遮蔽による植物性プランクトンの過剰増殖の制御" 土木学会第53回年次学術講演会概要集. 53. 438-439 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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