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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/5782

    Title: Kinetic Study of Pressurized Ozonation Reactor of Tap Water
    Authors: 高年信
    Keywords: overall mass transfer coefficient
    ozone decomposition rate
    pressurized ozonation reactor
    Date: 2009
    Issue Date: 2009-11-18
    Abstract: A developed pressurized pilot scale ozonation system with the volume of 28 L was designed to simulate the
    field operating condition by transferring premixed ozone and tap water into this system under the influence of three
    system pressure (1, 2 and 3 kgf/cm2), seven initial pH (5, 6, 6.5, 6.8, 8, 8.5, 9). The system was running in a
    continuous mode and with only initial pH adjustment to study the dissolution, self-decomposition and mass transfer of
    ozone in these conditions. The effects of the operating pressure and pH on ozone dissolution concentration, ozone
    decomposition rates and the liquid phase overall mass transfer coefficients (KLa) were determined quantitatively.
    The data show the calculated average ozone decomposition rates for pH increase from 5 to 9 are 9.01E-7 to
    2.64 E-6 mol/L-min by using mole balance equation at the system pressure 2 kgf/cm2. The calculated average of KLa
    at the pseudo-steady state are 0.039 min-1 and 0.069 min-1 for pH less 6.5 and greater than 6.8, respectively
    Appears in Collections:[環境工程系所] 期刊論文

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