Determination of the Efficiency, Isotherm, and Kinetics of Color Absorption of Sunset Yellow FCF from Aqueous Solution by Granular Activated Carbon

Introduction and purpose: Sunset yellow FCF is a hazardous azo dye pollutant found in food processing effluent. In this study, the efficiency of granular activated carbon on the absorption of sunset yellow FCF from aqueous solution, as well as isotherm and absorption kinetics were evaluated.Methods:...

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Main Authors: Esrafil Asgari, Fathollah Gholami-Borujeni, Rahim Aali
Format: Article
Language:fas
Published: Mazandaran University of Medical Sciences 2018-06-01
Series:تحقیقات سلامت در جامعه
Subjects:
Dye
Online Access:http://jhc.mazums.ac.ir/browse.php?a_code=A-10-4489-1&slc_lang=en&sid=1
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spelling doaj-0abf13f272d44081b25ce4127b9431802020-11-25T02:36:51ZfasMazandaran University of Medical Sciencesتحقیقات سلامت در جامعه2423-67722423-67642018-06-01411226Determination of the Efficiency, Isotherm, and Kinetics of Color Absorption of Sunset Yellow FCF from Aqueous Solution by Granular Activated CarbonEsrafil Asgari0Fathollah Gholami-Borujeni1Rahim Aali2 Introduction and purpose: Sunset yellow FCF is a hazardous azo dye pollutant found in food processing effluent. In this study, the efficiency of granular activated carbon on the absorption of sunset yellow FCF from aqueous solution, as well as isotherm and absorption kinetics were evaluated.Methods: This experimental laboratory study was conducted to investigate the effect of independent parameters such as pH, contact time, adsorbent dose, and initial concentration on the removal percent of sunset yellow FCF. The absorbance of the specimens was read three times by a spectrophotometer apparatus at the wavelength of 480 nm. In this study, the Langmuir and Freundlich adsorption isotherm models were used for mathematical modeling of the sunset yellow color adsorption process. Additionally, the pseudo-first- and pseudo-second-order kinetics equations were used for data analysis.Results: The contact time played a greater role in the adsorption process than either pH or initial dye concentration. By increasing contact time from 5 min to 50 min, the dye removal efficiency increased from 62% to 85%. When the weight of the adsorbent increased from 1 g to 8 g, the dye removal efficiency increased from 65% to 82%. Freundlich isotherm models could describe the adsorption equilibrium of the dye onto the granular activated carbon. Freundlich isotherm represented a better correlation compared to other isotherms (R2>0.9998). Moreover, pseudofirst- order models fit well with the experimental data (R2>0.9975).http://jhc.mazums.ac.ir/browse.php?a_code=A-10-4489-1&slc_lang=en&sid=1AdsorptionDyeGranular activated carbonSunset yellow
collection DOAJ
language fas
format Article
sources DOAJ
author Esrafil Asgari
Fathollah Gholami-Borujeni
Rahim Aali
spellingShingle Esrafil Asgari
Fathollah Gholami-Borujeni
Rahim Aali
Determination of the Efficiency, Isotherm, and Kinetics of Color Absorption of Sunset Yellow FCF from Aqueous Solution by Granular Activated Carbon
تحقیقات سلامت در جامعه
Adsorption
Dye
Granular activated carbon
Sunset yellow
author_facet Esrafil Asgari
Fathollah Gholami-Borujeni
Rahim Aali
author_sort Esrafil Asgari
title Determination of the Efficiency, Isotherm, and Kinetics of Color Absorption of Sunset Yellow FCF from Aqueous Solution by Granular Activated Carbon
title_short Determination of the Efficiency, Isotherm, and Kinetics of Color Absorption of Sunset Yellow FCF from Aqueous Solution by Granular Activated Carbon
title_full Determination of the Efficiency, Isotherm, and Kinetics of Color Absorption of Sunset Yellow FCF from Aqueous Solution by Granular Activated Carbon
title_fullStr Determination of the Efficiency, Isotherm, and Kinetics of Color Absorption of Sunset Yellow FCF from Aqueous Solution by Granular Activated Carbon
title_full_unstemmed Determination of the Efficiency, Isotherm, and Kinetics of Color Absorption of Sunset Yellow FCF from Aqueous Solution by Granular Activated Carbon
title_sort determination of the efficiency, isotherm, and kinetics of color absorption of sunset yellow fcf from aqueous solution by granular activated carbon
publisher Mazandaran University of Medical Sciences
series تحقیقات سلامت در جامعه
issn 2423-6772
2423-6764
publishDate 2018-06-01
description Introduction and purpose: Sunset yellow FCF is a hazardous azo dye pollutant found in food processing effluent. In this study, the efficiency of granular activated carbon on the absorption of sunset yellow FCF from aqueous solution, as well as isotherm and absorption kinetics were evaluated.Methods: This experimental laboratory study was conducted to investigate the effect of independent parameters such as pH, contact time, adsorbent dose, and initial concentration on the removal percent of sunset yellow FCF. The absorbance of the specimens was read three times by a spectrophotometer apparatus at the wavelength of 480 nm. In this study, the Langmuir and Freundlich adsorption isotherm models were used for mathematical modeling of the sunset yellow color adsorption process. Additionally, the pseudo-first- and pseudo-second-order kinetics equations were used for data analysis.Results: The contact time played a greater role in the adsorption process than either pH or initial dye concentration. By increasing contact time from 5 min to 50 min, the dye removal efficiency increased from 62% to 85%. When the weight of the adsorbent increased from 1 g to 8 g, the dye removal efficiency increased from 65% to 82%. Freundlich isotherm models could describe the adsorption equilibrium of the dye onto the granular activated carbon. Freundlich isotherm represented a better correlation compared to other isotherms (R2>0.9998). Moreover, pseudofirst- order models fit well with the experimental data (R2>0.9975).
topic Adsorption
Dye
Granular activated carbon
Sunset yellow
url http://jhc.mazums.ac.ir/browse.php?a_code=A-10-4489-1&slc_lang=en&sid=1
work_keys_str_mv AT esrafilasgari determinationoftheefficiencyisothermandkineticsofcolorabsorptionofsunsetyellowfcffromaqueoussolutionbygranularactivatedcarbon
AT fathollahgholamiborujeni determinationoftheefficiencyisothermandkineticsofcolorabsorptionofsunsetyellowfcffromaqueoussolutionbygranularactivatedcarbon
AT rahimaali determinationoftheefficiencyisothermandkineticsofcolorabsorptionofsunsetyellowfcffromaqueoussolutionbygranularactivatedcarbon
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