Constant Pressure Filtration of Suspension in Viscoelastic Fluid

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The mechanism of constant pressure filtration of particle suspension in a viscoelastic fluid is studied. Effects of operating conditions on the performance of filtration are discussed. At the beginning of a filtration, the elastic behavior of fluid plays an important role on the performance of filtration, which results in a more compact cake and increases filtration resistance. After a period of time, the elastic effect diminishes gradually, and the flow behavior of fluid transforms to power law due to the decrease of filtration rate. A numerical program based upon the continuity equation of cake compression and the filtration equation is designed for simulating the variations of local cake properties during a course of constant pressure filtration. The average cake porosity decreases with time at the beginning of filtration and then increases and approaches to a given value when the flow behavior transforms to power law. The calculated results of average cake porosity agree very well with the experimental data when the filter chamber is filled with cake.

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  • Journal of chemical engineering of Japan  

    Journal of chemical engineering of Japan 31(4), 558-564, 1998-08 

    The Society of Chemical Engineers, Japan

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各種コード

  • NII論文ID(NAID)
    10002065960
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • NDL 記事登録ID
    4541598
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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