ADSORPTION BEHAVIOR OF ORGANIC SUBSTANCES ONTO BUBBLE SURFACE IN NONFOAMING BUBBLE SEPARATION

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著者

    • SUZUKI Akira
    • Department of Chemistry, Faculty of Fisheries, Hokkaido University
    • MARUYAMA Hideo
    • Department of Chemistry, Faculty of Fisheries, Hokkaido University
    • SEKI Hideshi
    • Department of Chemistry, Faculty of Fisheries, Hokkaido University

抄録

The adsorption behavior of organic substances onto bubble surface in nonfoaming bubble separation was investigated. Experiments were conducted with a bubble column equipped with a droplet collector or a trap at its top. Crystal violet (CV) and humic acid (HA) were used as examples of surface-active substances.<BR>The amount adsorbed onto the bubble surface was calculated through the mass balance in the bubble column. Two adsorption parameters, equilibrium constant, <I>K</I>, and saturated surface density on bubble surface, <I>γ</I>, were determined for CV and HA, respectively, by flitting of the experimental results to a Langmuir-type isotherm. Using the value of <I>K</I>, <I>γ</I> and the intrinsic volumetric flow rate of droplets at the liquid-atmosphere interface, the variation of enriching ratio, <I>E</I>, with concentration of the solution was estimated and compared to the experimental results. The calculated <I>E</I> was in good accordance with the experimental ones for both CV and HA.

収録刊行物

  • Journal of chemical engineering of Japan

    Journal of chemical engineering of Japan 29(5), 794-798, 1996-10-20

    The Society of Chemical Engineers, Japan

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各種コード

  • NII論文ID(NAID)
    10003815397
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • データ提供元
    CJP書誌  J-STAGE 
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