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A comparative study of tailored activated carbon from waste tires against commercial activated carbon (F400) for the removal of Methylene Blue

Contreras, Osmary C
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1383812437

Abstract Details

2013, MS, University of Cincinnati, Engineering and Applied Science: Environmental Engineering.
Abstract Although color represents a non-mandatory water quality standard, organic compounds such as dyes must be removed from wastewater before discharge. Dyes are considered to be aesthetic and toxic pollutants in water. Various water treatment processes have been studied in order to obtain an optimum removal of dyes. Adsorption by activated carbons (ACs) has demonstrated to be the technique of preference. However, the high cost of the precursor material and process for production could influence for its application. Therefore, it is necessary to find raw materials of low cost that requires limited processing and is easily available. In this study, chemical activation of waste tires for developing activated carbons was evaluated. Tires of 400 µm nominal size were impregnated with potassium hydroxide (KOH) in different w/w ratios (0:1, 1:1, 2:1, 3:1, 4:1 and 5:1) and two other parameters were selected in order to obtain the best conditions for the desirable carbon; One is the activation temperature (600, 700 and 800 °C) and the second is contact time during activation (1, 2 and 3 h). BET specific surface area and pore size distribution (PSD) for each carbon was determined. The activated carbon from waste tires with higher BET specific surface area and mesopore percentage was obtained with a KOH/tires (2/1), temperature 800 °C and activation time 1 h. Adsorption isotherm, kinetic studies and microcolumn experiments were conducted with the selected activated carbon from waste tires (ACWT) and commercial activated carbon (F400) for the removal of methylene blue (MB). ACWT has demonstrated to be an effective adsorbent in removing MB but with lower adsorption capacity than that of F400, suggesting further studies need to be conducted for enhancing the activation process of waste tires.
George Sorial, Ph.D. (Committee Chair)
Pablo Campo-Moreno, Ph.D. (Committee Member)
Margaret Kupferle, Ph.D. P.E. (Committee Member)
108 p.
Environmental Engineering
Activated carbon; adsorption; chemical activation; dyes; methylene blue; waste tires

Recommended Citations

Citations

  • Contreras, O. C. (2013). A comparative study of tailored activated carbon from waste tires against commercial activated carbon (F400) for the removal of Methylene Blue [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1383812437

    APA Style (7th edition)

  • Contreras, Osmary. A comparative study of tailored activated carbon from waste tires against commercial activated carbon (F400) for the removal of Methylene Blue. 2013. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1383812437.

    MLA Style (8th edition)

  • Contreras, Osmary. "A comparative study of tailored activated carbon from waste tires against commercial activated carbon (F400) for the removal of Methylene Blue." Master's thesis, University of Cincinnati, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1383812437

    Chicago Manual of Style (17th edition)

ucin1383812437
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