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Decolorization of Reactive Red 239 Via Heat Activated Persulfate

Received: 14 August 2018     Accepted: 3 September 2018     Published: 9 October 2018
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Abstract

Effluents of cotton dyeing process of textile industry is considered as extremely polluted due to presence of unfixed azo dyes and auxiliary chemicals. The complex aromatic structure and non-biodegradability nature of azo dyes involved new and efficient treatment technologies to eliminate intense color from textile wastewater. In recent years, in-situ chemical oxidation technology (ISCO) using persulfate (S2O82-) as an oxidant has appeared to be a promising method for removal of azo dyes. S2O82- can be activated by UV, heat or transition metals to generate sulfate radical (SO4-). In this study, decolorization of Reactive Red 239 (RR239) azo dye via heat activated S2O82- was explored. Experiments were conducted in a cylindrical batch reactor equipped with a water jacket. Effect of parameters such as temperature, pH and S2O82- concentration on decolorization of RR239 was investigated. The results show that decolorization efficiency was enhanced with increasing temperature from 45 to 55°C but further increase in temperature did not enhance decolorization. The pseudo first order rate constant values fit well Arrhenius equation, yielding an activation energy of 108.75 kJ mol-1 for decolorization of RR239. The highest decolorization efficiency was obtained at pH=3 under the tested pH range. As S2O82- concentration increased decolorization efficiency increased. 89.67% and 39.05% decolorization and aromatic degradation efficiencies were observed within 120 minutes of reaction time, respectively. These results show that heat activated S2O82- method was a feasible method for decolorization of RR239.

Published in American Journal of Physical Chemistry (Volume 7, Issue 3)
DOI 10.11648/j.ajpc.20180703.11
Page(s) 45-49
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

Heat Activated Persulfate, Sulfate Radical, Azo Dye, Decolorization

References
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[6] D. Salari, A. Niaeri, S. Aber and M. H. Rasoulifard, “The Photooxidative destruction of C. I. Basic Yellow 2 using UV/ S2O82- process in a rectangular continuous photoreactor” J. Hazard. Mater., vol. 166, pp. 61-66, 2009.
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    Ozlem Esen Kartal. (2018). Decolorization of Reactive Red 239 Via Heat Activated Persulfate. American Journal of Physical Chemistry, 7(3), 45-49. https://doi.org/10.11648/j.ajpc.20180703.11

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    ACS Style

    Ozlem Esen Kartal. Decolorization of Reactive Red 239 Via Heat Activated Persulfate. Am. J. Phys. Chem. 2018, 7(3), 45-49. doi: 10.11648/j.ajpc.20180703.11

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    AMA Style

    Ozlem Esen Kartal. Decolorization of Reactive Red 239 Via Heat Activated Persulfate. Am J Phys Chem. 2018;7(3):45-49. doi: 10.11648/j.ajpc.20180703.11

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  • @article{10.11648/j.ajpc.20180703.11,
      author = {Ozlem Esen Kartal},
      title = {Decolorization of Reactive Red 239 Via Heat Activated Persulfate},
      journal = {American Journal of Physical Chemistry},
      volume = {7},
      number = {3},
      pages = {45-49},
      doi = {10.11648/j.ajpc.20180703.11},
      url = {https://doi.org/10.11648/j.ajpc.20180703.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpc.20180703.11},
      abstract = {Effluents of cotton dyeing process of textile industry is considered as extremely polluted due to presence of unfixed azo dyes and auxiliary chemicals. The complex aromatic structure and non-biodegradability nature of azo dyes involved new and efficient treatment technologies to eliminate intense color from textile wastewater. In recent years, in-situ chemical oxidation technology (ISCO) using persulfate (S2O82-) as an oxidant has appeared to be a promising method for removal of azo dyes. S2O82- can be activated by UV, heat or transition metals to generate sulfate radical (SO4-). In this study, decolorization of Reactive Red 239 (RR239) azo dye via heat activated S2O82- was explored. Experiments were conducted in a cylindrical batch reactor equipped with a water jacket. Effect of parameters such as temperature, pH and S2O82- concentration on decolorization of RR239 was investigated. The results show that decolorization efficiency was enhanced with increasing temperature from 45 to 55°C but further increase in temperature did not enhance decolorization. The pseudo first order rate constant values fit well Arrhenius equation, yielding an activation energy of 108.75 kJ mol-1 for decolorization of RR239. The highest decolorization efficiency was obtained at pH=3 under the tested pH range. As S2O82- concentration increased decolorization efficiency increased. 89.67% and 39.05% decolorization and aromatic degradation efficiencies were observed within 120 minutes of reaction time, respectively. These results show that heat activated S2O82- method was a feasible method for decolorization of RR239.},
     year = {2018}
    }
    

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  • TY  - JOUR
    T1  - Decolorization of Reactive Red 239 Via Heat Activated Persulfate
    AU  - Ozlem Esen Kartal
    Y1  - 2018/10/09
    PY  - 2018
    N1  - https://doi.org/10.11648/j.ajpc.20180703.11
    DO  - 10.11648/j.ajpc.20180703.11
    T2  - American Journal of Physical Chemistry
    JF  - American Journal of Physical Chemistry
    JO  - American Journal of Physical Chemistry
    SP  - 45
    EP  - 49
    PB  - Science Publishing Group
    SN  - 2327-2449
    UR  - https://doi.org/10.11648/j.ajpc.20180703.11
    AB  - Effluents of cotton dyeing process of textile industry is considered as extremely polluted due to presence of unfixed azo dyes and auxiliary chemicals. The complex aromatic structure and non-biodegradability nature of azo dyes involved new and efficient treatment technologies to eliminate intense color from textile wastewater. In recent years, in-situ chemical oxidation technology (ISCO) using persulfate (S2O82-) as an oxidant has appeared to be a promising method for removal of azo dyes. S2O82- can be activated by UV, heat or transition metals to generate sulfate radical (SO4-). In this study, decolorization of Reactive Red 239 (RR239) azo dye via heat activated S2O82- was explored. Experiments were conducted in a cylindrical batch reactor equipped with a water jacket. Effect of parameters such as temperature, pH and S2O82- concentration on decolorization of RR239 was investigated. The results show that decolorization efficiency was enhanced with increasing temperature from 45 to 55°C but further increase in temperature did not enhance decolorization. The pseudo first order rate constant values fit well Arrhenius equation, yielding an activation energy of 108.75 kJ mol-1 for decolorization of RR239. The highest decolorization efficiency was obtained at pH=3 under the tested pH range. As S2O82- concentration increased decolorization efficiency increased. 89.67% and 39.05% decolorization and aromatic degradation efficiencies were observed within 120 minutes of reaction time, respectively. These results show that heat activated S2O82- method was a feasible method for decolorization of RR239.
    VL  - 7
    IS  - 3
    ER  - 

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Author Information
  • Department of Chemical Engineering, ?n?nü University, Malatya, Turkey

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