The study of furfural removal from aqueous solutions using activated carbon and bentonite modified with cetyltrimethylammonium bromide (CTAB), a cationic surfactant
Background and Objectives: Furfural is one of the toxic chemical compounds used in many industries such as petrochemical, food, paper products, pharmaceutical, etc., due to having some characteristics. Therefore, furfural could be found at different concentrations in the effluent from these industri...
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doaj-421ee4cf69fd4a8493661a07be1ac8772021-09-02T04:17:19ZfasTehran University of Medical Sciencesسلامت و محیط2008-20292008-37182016-01-0183285296The study of furfural removal from aqueous solutions using activated carbon and bentonite modified with cetyltrimethylammonium bromide (CTAB), a cationic surfactantM Leili0Gh Asgari1A. A Eskandari2L Borzoei3B Ramavandi4 Ph.D; Assistant Professor, Department of Environmental Health Engineering, School of Public Health, Student Research Center, Hamadan University of Medical Sciences, Hamadan, IRAN Ph.D; Assistant Professor, Department of Environmental Health Engineering, School of Public Health, Student Research Center, Hamadan University of Medical Sciences, Hamadan, IRAN Bachelor on Environmental Engineering; School of Public Health, Student Research Center, Hamadan University of Medical Sciences, Hamadan, IRAN Bachelor on Environmental Engineering; School of Public Health, Student Research Center, Hamadan University of Medical Sciences, Hamadan, IRAN Ph.D; Assistant Professor, Department of Environmental Health Engineering, School of Public Health, Bushehr University of Medical Sciences, Bushehr, IRAN Background and Objectives: Furfural is one of the toxic chemical compounds used in many industries such as petrochemical, food, paper products, pharmaceutical, etc., due to having some characteristics. Therefore, furfural could be found at different concentrations in the effluent from these industries and can enter the environment. Hence, the aim of this study was the assessment the efficiency of a low cost bentonite modified with cationic surfactant in the removal of furfural from aqueous solution. Material and Methods: In this experimental study, bentonite was purchased from one of the Mines of Zanjan Province, Iran and then the efficiency of bentonite modified with the cationic surfactant CTAB (CTAB-Bent) was assessed in the adsorption of furfural from aqueous solution. Activated carbon (AC) was also purchased as commercial grade. Results: Under optimum conditions, the removal efficiency of AC and CTAB-Bent was about 52 and 66%, respectively. For both adsorbents used in this study, the increase of contact time and sorbent dosage resulted in increasing the removal efficiency, but the removal efficiency was decreased with the increase of furfural initial concentrations. Regarding pH, the removal efficiency was the highest in relative acidic and neutral environment, (60 and 69% for AC and CTAB-Bent respectively). The kinetics studies revealed that the highest correlation coefficients were obtained for the pseudo-second order rate kinetic model. Adsorption data from both adsorbents was also fitted with Langmuir isotherm. Conclusion: It was found that modified bentonite with CTAB as a natural adsorbent could have better efficiencies compared with activated carbon in the furfural removal, although more contact times is needed.http://ijhe.tums.ac.ir/browse.php?a_code=A-10-213-1&slc_lang=en&sid=1Furfural Natural adsorbent Adsorption kinetic Langmuir |
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language |
fas |
format |
Article |
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author |
M Leili Gh Asgari A. A Eskandari L Borzoei B Ramavandi |
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M Leili Gh Asgari A. A Eskandari L Borzoei B Ramavandi The study of furfural removal from aqueous solutions using activated carbon and bentonite modified with cetyltrimethylammonium bromide (CTAB), a cationic surfactant سلامت و محیط Furfural Natural adsorbent Adsorption kinetic Langmuir |
author_facet |
M Leili Gh Asgari A. A Eskandari L Borzoei B Ramavandi |
author_sort |
M Leili |
title |
The study of furfural removal from aqueous solutions using activated carbon and bentonite modified with cetyltrimethylammonium bromide (CTAB), a cationic surfactant |
title_short |
The study of furfural removal from aqueous solutions using activated carbon and bentonite modified with cetyltrimethylammonium bromide (CTAB), a cationic surfactant |
title_full |
The study of furfural removal from aqueous solutions using activated carbon and bentonite modified with cetyltrimethylammonium bromide (CTAB), a cationic surfactant |
title_fullStr |
The study of furfural removal from aqueous solutions using activated carbon and bentonite modified with cetyltrimethylammonium bromide (CTAB), a cationic surfactant |
title_full_unstemmed |
The study of furfural removal from aqueous solutions using activated carbon and bentonite modified with cetyltrimethylammonium bromide (CTAB), a cationic surfactant |
title_sort |
study of furfural removal from aqueous solutions using activated carbon and bentonite modified with cetyltrimethylammonium bromide (ctab), a cationic surfactant |
publisher |
Tehran University of Medical Sciences |
series |
سلامت و محیط |
issn |
2008-2029 2008-3718 |
publishDate |
2016-01-01 |
description |
Background and Objectives: Furfural is one of the toxic chemical compounds used in many industries such as petrochemical, food, paper products, pharmaceutical, etc., due to having some characteristics. Therefore, furfural could be found at different concentrations in the effluent from these industries and can enter the environment. Hence, the aim of this study was the assessment the efficiency of a low cost bentonite modified with cationic surfactant in the removal of furfural from aqueous solution.
Material and Methods: In this experimental study, bentonite was purchased from one of the Mines of Zanjan Province, Iran and then the efficiency of bentonite modified with the cationic surfactant CTAB (CTAB-Bent) was assessed in the adsorption of furfural from aqueous solution. Activated carbon (AC) was also purchased as commercial grade.
Results: Under optimum conditions, the removal efficiency of AC and CTAB-Bent was about 52 and 66%, respectively. For both adsorbents used in this study, the increase of contact time and sorbent dosage resulted in increasing the removal efficiency, but the removal efficiency was decreased with the increase of furfural initial concentrations. Regarding pH, the removal efficiency was the highest in relative acidic and neutral environment, (60 and 69% for AC and CTAB-Bent respectively). The kinetics studies revealed that the highest correlation coefficients were obtained for the pseudo-second order rate kinetic model. Adsorption data from both adsorbents was also fitted with Langmuir isotherm.
Conclusion: It was found that modified bentonite with CTAB as a natural adsorbent could have better efficiencies compared with activated carbon in the furfural removal, although more contact times is needed. |
topic |
Furfural Natural adsorbent Adsorption kinetic Langmuir |
url |
http://ijhe.tums.ac.ir/browse.php?a_code=A-10-213-1&slc_lang=en&sid=1 |
work_keys_str_mv |
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