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  • Application of integrated ozone and granular activated carbon for decolorization and chemical oxygen demand reduction of vinasse from alcohol distilleries

    Author(s)
    Hadavifar, Mojtaba
    Younesi, Habibollah
    Zinatizadeh, Ali Akbar
    Mandad, Faezeh
    Li, Qin
    Ghasemi, Zahra
    Griffith University Author(s)
    Li, Qin
    Year published
    2016
    Metadata
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    Abstract
    This study investigates the treatment of the distilleries vinasse using a hybrid process integrating ozone oxidation and granular activated carbons (GAC) in both batch and continuous operation mode. The batch-process studies have been carried out to optimize initial influent pH, GAC doses, the effect of the ozone (O3) and hydrogen peroxide (H2O2) concentrations on chemical oxygen demand (COD) and color removal of the distilleries vinasse. The continuous process was carried out on GAC and ozone treatment alone as well as the hybrid process comb both methods to investigate the synergism effectiveness of the two methods for ...
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    This study investigates the treatment of the distilleries vinasse using a hybrid process integrating ozone oxidation and granular activated carbons (GAC) in both batch and continuous operation mode. The batch-process studies have been carried out to optimize initial influent pH, GAC doses, the effect of the ozone (O3) and hydrogen peroxide (H2O2) concentrations on chemical oxygen demand (COD) and color removal of the distilleries vinasse. The continuous process was carried out on GAC and ozone treatment alone as well as the hybrid process comb both methods to investigate the synergism effectiveness of the two methods for distilleries vinasse COD reduction and color removal. In a continuous process, the Yan model described the experimental data better than the Thomas model. The efficiency of ozonation of the distilleries vinasse was more effective for color removal (74.4%) than COD removal (25%). O3/H2O2 process was not considerably more effective on COD and color removal. Moreover, O3/GAC process affected negatively on the removal efficiency by reducing COD and color from distilleries vinasse. The negative effect decreased by increasing pH value of the influent.
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    Journal Title
    Journal of Environmental Management
    Volume
    170
    DOI
    https://doi.org/10.1016/j.jenvman.2016.01.009
    Subject
    Environmental management
    Vinasse
    Cane molasses
    Wastewater treatment
    Ozonation
    Synergistic effect
    Publication URI
    http://hdl.handle.net/10072/100145
    Collection
    • Journal articles

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