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Dynamic Microfiltration of Superfine Suspended Solids-Liquid Mixtures by Use of High-Speed Rotary Membrane Filter.

Research Project

Project/Area Number 02650683
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 化学工学
Research InstitutionNagoya University

Principal Investigator

MURASE Toshiro  Nagaya Univ. Dept. of Chem. Eng. Professor, 工学部, 教授 (70023067)

Co-Investigator(Kenkyū-buntansha) IWATA Masashi  Nagoya Univ. Dept. of Chem. Eng. Associate, 工学部, 助手 (10151747)
IRITANI Eiji  Nagoya Univ. Dept. of Chem. Eng. Assoc. Professor, 工学部, 助教授 (60144119)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1991: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1990: ¥1,800,000 (Direct Cost: ¥1,800,000)
KeywordsSuperfine suspended solids / Dynamic filter / Dynamic Microfiltration
Research Abstract

To maintain a high flux level of filtrate through moving the deposit layer of filter cake, the operational mode of rotational dynamic filtration was studied. The efficient applications of a high-speed rotating ceramic filter were shown using several kinds of slurries covering high viscous liquid-solids system.
1) With a ceramic membrane of a much smaller pore size than the particle size of suspended solids, the dynamic microfiltration followed the principle of thin-cake filtration. A filtrate rate equation was derived for the thin-cake filtration process by introducing a dynamic filtration coefficient newly defined. On the basis of the fact that the dynamic coefficient depends on a controlling variable composed of the shear stress acting on membrane surface and the coefficient of constant pressure filtration, a basis for the design and evaluation of rotating microfiltration was proposed.
2) Based on the filtration rate equation, the time dependence of filtrate flux was examined for crossflow filtration operation. The filtration characteristics were related to a number of operational variables, in view of the fact that the final steady flux can be estimated as a function of both the membrane shear stress and the constant pressure filtration coefficient. A reliable data analysis was proposed for evaluating the filtration performance.
3) In the crossflow filtration of high viscous slurry, some limitations in increasing the filtration rate appeared though there being possibility of producing a high shear force due to the low fluidity of crossflowing slurry. For eliminating this difficulty of the reduction in filtration time, the relative motion between slurry and membrane, created by the high speed rotation of the latter, can be efficiently utilized to achieve a high flux filtration of viscous liquid-solids system.

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] Toshiro Murase: "Dynamic microfiltration of dilute slurries with a rotating ceramic membrane." J.of Membrane Science. 62. 187-199 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 村瀬 敏朗: "希薄スラリ-のクロスフロ-精密濾過速度と操作因子の相関" 化学工学論文集. 17. 1123-1129 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 村瀬 敏朗: "高粘性スラリ-の回転円筒精密ダイナミック濾過" 化学工学会第24回秋季大学研究発表要旨集. 1. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Toshiro Murase: "Microfiltration by use of dynamic filter with rotating ceramic membrane." Proc.of the lst China-Japan Joint International Conference on Fultration and Separation,Hangzou. 1. 291-296 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Toshiro Murase: "Dynamic filtration of high viscous slurry by use of highーspeed rotary membrane." 化学工学会第57年会研究発表要旨集. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 楊 徳武: "回転円筒型ダイナミックフィルタ-による発酵液の精密分離特性" 化学工学会第57年会研究発表要旨集. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 村瀬 敏朗: "セラミック濾材による高粘性スラリ-のクロスフロ-濾過特性" 化学工学会第57年会研究発表要旨集. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Toshiro Murase: "Dynamic microfiltration of dilute slurries with a rotating ceramic membrane." J. of Membrane Science. 62, No. 2. 187 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Toshiro Murase: "Flux-controlling factors in crossflow microfiltration of dilute slurries." Kagaku Kogaku Ronbunshu. 17, No. 6. 1123 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Toshiro Murase: "Microfiltration by use of dynamic filter with rotating ceramic membrane." Proc. of the 1st China-Japan Joint International Conference on Filtration and Separation. Hangzou. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Toshiro Murase: "Dynamic filtration of high viscous slurry by use of high-speed rotary membrane." Proc. of the 1st China-Japan Joint International Conference on Filtration and Separation. Hangzou. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Toshiro Murase: "Microfiltration of high-viscous slurry with rotary dynamic ceramic filter." Proc. of the 24th Autumn Meeting of Chem. Engrs. Soc. Japan, Nagoya. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Do-Wu Yang: "Microseparation of Yeast slurry by use of rotating cylindrical filter." Proc. of the 57th Annual Meeting of Chem. Engrs. Soc. Japan. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Toshiro Murase: "Crossflow filtration of high viscous slurries in tubular ceramic membrane filter." Proc. of the 57th Annual Meeting of Chem. Engrs. Soc. Japan. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Toshiro Murase: "Dynamic microfiltration of dilute slurries with a rotating ceramic membrane." J.of Membrane Science. 62. 187-199 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 村瀬 敏朗: "希薄スラリ-のクロスフロ-精密濾過速度と操作因子の相関" 化学工学論文集. 17. 1123-1129 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 村瀬 敏朗: "高粘性スラリ-の回転円筒精密ダイナミック濾過" 化学工学会第24回秋季大会研究発表要旨集. 1. (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Toshiro Murase: "Microfilatration by use of dynamic fillter with rotating ceramic membrane." Proc.of the 1st ChinaーJapan International Conference on Filtration and Separation,Hangzou. 1. 291-296 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Toshiro Murase: "Dynamic filtration of high viscous slurry by use of highーspeed rotary membrane." Proc.of the 1st ChinaーJapan Joint International Conference on Filtration and Separation,Hangzou. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 揚 徳武: "回転円筒型ダイナミックフィルタ-による発酵液の精密分離特性" 化学工学会第57年会研究発表要旨集. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 村瀬 敏朗: "セラミック濾材による高粘性スラリ-のクロスフロ-濾過特性" 化学工学会第57年会研究発表要旨集. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] Toshiro MURASE: "DYNAMIC MICROFILTRATION RATE OF DILUTE SLURRY THROUGH CERAMIC MEMBRANE FILTER WITH ROTATING CYLINDER." Journal of Membrane Science. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] Toshiro MURASE: "MICROFILTRATION BY USE OF DYNAMIC FILTER WITH ROTATING CERAMIC MEMBRANE." Proceeding of the 1st ChinaーJapan Joint Filtration Conference. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] Haruo YAMAZAKI: "FLOW BEHAVIOR OF POWERーLAW NONーNEWTONIAN FLUID IN FILTER CHAMBER OF A ROTATING DISK TYPE FILTER." Proceeding of the 1st ChinaーJapan Joint Filtration Conference. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] P.チッドポン: "回転円筒型精密濾過における濾過速度と操作因子の相関" 化学工学会第56年会研究発講演要旨集. (1991)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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