Oxidation of tetrachloroethylene in a bubble column photochemical reactor applying the UV/H2O2 technique

Dzevo Alibegic, Satoshi Tsuneda, Akira Hirata

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    Mass transfer of tetrachloroethylene (PCE) gas, followed by a free-OH radical reaction in the liquid phase, was studied in a bubble column reactor equipped with a UV light source and containing aqueous H2O 2 as the reacting medium. Degradation of PCE in the liquid phase was found to follow pseudo-first-order kinetics, and the optimal ratio of H 2O2/PCE leading to the highest oxidation rate could be successfully obtained from the analysis of the steady-state OH radical concentration. Absoption of PCE gas was in the kinetic slow regime and could be predicted based on the ratio of the apparent rate constant of PCE liquid degradation to the volumetric mass transfer coefficient (kapp/KLa). The presence of small amounts of PCE in the liquid bulk had positive effect on the mass transfer over the range studied and need to be taken into account.

    Original languageEnglish
    Pages (from-to)733-740
    Number of pages8
    JournalCanadian Journal of Chemical Engineering
    Volume81
    Issue number3-4
    Publication statusPublished - 2003 Jun

    Fingerprint

    Tetrachloroethylene
    Bubble columns
    Oxidation
    Mass transfer
    Liquids
    Gases
    Free radical reactions
    Degradation
    Kinetics
    Ultraviolet radiation
    Rate constants

    Keywords

    • Bubble column photochemical reactor
    • PCE
    • Slow reaction regime
    • UV/HO

    ASJC Scopus subject areas

    • Polymers and Plastics

    Cite this

    Oxidation of tetrachloroethylene in a bubble column photochemical reactor applying the UV/H2O2 technique. / Alibegic, Dzevo; Tsuneda, Satoshi; Hirata, Akira.

    In: Canadian Journal of Chemical Engineering, Vol. 81, No. 3-4, 06.2003, p. 733-740.

    Research output: Contribution to journalArticle

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