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Development of nanofiltration technology as a tool for concentration and partitioning of organic matters and separation of micropollutants

Research Project

Project/Area Number 11555142
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 InstitutionTOKYO INSTITUTE OF TECHNOLOGY

Principal Investigator

URASE Taro  Dept.Civil Eng., Tokyo Inst.of Technol., Assoc.Prof., 大学院・理工学研究科, 助教授 (60272366)

Co-Investigator(Kenkyū-buntansha) YAMAMOTO Kazuo  Env.Sci.Tech., Univ.of Tokyo, Prof., 環境安全研究センター, 教授 (60143393)
TODA Yuji  Dept.Civil Eng., Tokyo Inst.of Technol., Res.Assoc., 大学院・理工学研究科, 助手 (60301173)
IKEDA Syunsuke  Dept.Civil Eng., Tokyo Inst.of Technol., Prof., 大学院・理工学研究科, 教授 (60016590)
KAWASAKI Mutsuo  Nitto Denko Corp., Head of Technical Dev., 技術担当課長(研究職)
OZAKI Noriatsu  Dept.Civil Eng., Hiroshima Univ., Res.Assoc., 工学部, 助手 (50294541)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2000: ¥2,800,000 (Direct Cost: ¥2,800,000)
KeywordsNanofiltration / Reverse osmosis / Landfill leachate / Endocrine disrupting chemicals / Drinking water treatment / Wastewater treatment
Research Abstract

Rejection characteristics of nanofiltration and reverse osmosis membranes were investigated in the applications of drinking water treatment of surface and/or underground water and in the applications of leachate treatment. Molecular weight cutoff sizes of commercially available membranes were determined by alcohols and by sugars. Some membranes with relatively low nominal desalination ratio showed more than 90% rejection of natural organic matters in the measurement of TOC.There was less correlation between rejection of organic matters and rejection of salts. This type of insignificant correlation was found in the case not only of surface water treatment but of underground water treatment and of leachate treatment. Bis phenol A, which is thought to be one of the endocrine disrupting chemicals showed lower rejection than the predicted value from the molecular weight rejection relationship obtained from sugar rejection. One of the actual leachate treatment facilities using high rejection reverse osmosis treatment was focused for the rejection characteristics survey. Salt rejections, organic matters rejection and micropollutants rejections were measured in that actual plant. A suction nanofiltration system was investigated using an immersed flat sheet nanofiltration module. Salt rejections were analyzed by using the well known solution diffusion model and the Extended Nernst Planck equations. Sulfate rejection was lower than the predicted value of the Extended Nernst Planck equation. The concentration polarization in membrane separation was calculated to be negligible in the case of small flux operation of immersed nanofiltration. In the arsenic contained ground water treatment, an affinity term was identified in the Extended Nernst Planck equation. A nanofiltration device connected with bicycle type manual pump was developed for the treatment of arsenic contained ground water treatment in Bangladesh.

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] J. I. Oh ら: "Modeling of arsenic rejection considering affinity and steric hindrance effect in nanofiltration membranes"Water Science and Technology. 42,3-4. 173-180 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] G. Herath ら: "The effect of suction velocity on concentration polarization in microfiltration membranes under turbulent flow condition"J. of Membrane Science. 169. 175-183 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] J. I. Oh ら: "Application of low-pressure nanofiltration coupled with a bicycle pump for the treatment of arsenic contaminated groundwater"Desalination. 132. 307-314 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] J.I.Oh, T.Urase, H.Kitawaki, M.M.Rahman, M.H.Rhahman, K.Yamamoto: "Modeling of arsenic rejection considering affinity and steric hindrance effect in nanofiltration membranes"Wat.Sci.& Technol.. 42, 3-4. 173-180 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] G.Herath, K.Yamamoto, T.Urase: "The effect of suction velocity on concentration polarization in microfiltration membranes under turbulent flow condition"J.of Membrane Science. 169. 175-183 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] J.I.Oh, K.Yamamoto, H.Kitawaki, S.Nakao, T.Sugawara, M.M.Rahman, M.H.Rhahman: "Application of low-pressure nanofiltration coupled with a bicycle pump for the treatment of arsenic contaminated groundwater, Desalination"132. 307-314 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] J.I.Oh ら: "Modeling of arsenic rejection considering affinity and steric hindrance effect in nanofiltration membranes"Water Science and Technology. 42,3-4. 173-180 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] G.Herath ら: "The effect of suction velocity on concentration polarization in microfiltration membranes under turbulent flow condition"J.of Membrane Science. 169. 175-183 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] J.I.Oh ら: "Application of low-pressure nanofiltration coupled with a bicycle pump for the treatment of arsenic contaminated groundwater"Desalination. 132. 307-314 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 山田和哉 ら: "異なる形式の廃棄物処分場の浸出水中の微量有機成分の計測とその浸出水処理過程での挙動"水環境学会誌. 22, 1. 40-45 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] G.Herath ら: "Removal of viruses by microfiltration membranes at different solution environments"Water Science and Technology. 40, 4-5. 331-338 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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