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Abatement of Cr (VI) from wastewater using a new adsorbent, cantaloupe peel: Taguchi L16 orthogonal array optimization

  • Environmental Engineering
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Abstract

Taguchi orthogonal design was applied for multivariate optimization of Cr (VI) abatement by cantaloupe peel powder (CPP), as a novel adsorbent, from industrial wastewater in a batch mode. Effective factors in the adsorption process, such as temperature, CPP dose, Cr (VI) concentration, wastewater pH, and contact time, were considered using an L16 orthogonal array design. The best conditions for adsorbing of Cr (VI) were determined by the Taguchi method and desirability approach as pH of 2, chromium concentration of 100mg/L, contact time of 5min, CPP dosage of 0.5 g/L, and wastewater temperature of 25 °C. Analysis of variance results indicated that the pH was the most important variable influencing the chromium removal percentage, and its contribution value was obtained 45.01%. The Langmuir model proved best fit for the experimental data and maximum adsorption capacity of Cr (VI) onto CPP was obtained 166.25mg/g. The final part of the study includes an examination of the CPP through an analysis of the removal of chromium from real industrial wastewater. It can be concluded that the CPP presents a promising and efficient alternative for eliminating of Cr (VI) from industrial wastewaters.

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Authors and Affiliations

  1. Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran

    Bahman Ramavandi

  2. Social Determinants of Health Research Center (SDHRC), Department of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran

    Ghorban Asgari

  3. Department of Biostatistics and Epidemiology, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran

    Javad Faradmal

  4. School of Civil and Environmental Engineering, University of Technology, Sydney (UTS), Post Box 129, Broadway, Sydney, NSW, 2007, Australia

    Soleyman Sahebi

  5. DelcoWater, 3735 Thatcher Ave, Saskatoon, SK, S7R 1B8, Canada

    Babak Roshani

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  1. Bahman Ramavandi
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  2. Ghorban Asgari
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  3. Javad Faradmal
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  4. Soleyman Sahebi
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  5. Babak Roshani
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Correspondence to Ghorban Asgari.

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Ramavandi, B., Asgari, G., Faradmal, J. et al. Abatement of Cr (VI) from wastewater using a new adsorbent, cantaloupe peel: Taguchi L16 orthogonal array optimization. Korean J. Chem. Eng. 31, 2207–2214 (2014). https://doi.org/10.1007/s11814-014-0172-6

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  • DOI: https://doi.org/10.1007/s11814-014-0172-6

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