Adsorption studies for the removal of methyl tert-butyl ether on various commercially available GACs from an aqueous medium

Moonis Ali Khan; Sang Hoon Lee; Sanghyuk Kang; Ki Jung Paeng; Giehyeon Lee; Sang Eun Oh; Byong Hun Jeon

doi:10.1080/01496395.2010.551395

Adsorption studies for the removal of methyl tert-butyl ether on various commercially available GACs from an aqueous medium

Moonis Ali Khan, Sang Hoon Lee, Sanghyuk Kang, Ki Jung Paeng, Giehyeon Lee, Sang Eun Oh, Byong Hun Jeon

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

This study highlights the potential of four commercially available granular-activated carbons (GACs) to remove Methyl tert-butyl ether (MTBE) from an aqueous medium. Thermodynamics and kinetics parameters were elucidated. The FT-IR spectra showed decrease in peak intensity after the adsorption. The decline in the peak intensity revealed that the adsorption occurred on available active sites over the surface of the GACs. The adsorption on GACs was maximum in the pH range 7-8, with maximum adsorption capacity (47.82 mg/g, pH 8) observed with CGAC. The contact time studies showed optimum adsorption of MTBE on CGAC (67.05 mg/g) at 300 mg/L initial MTBE concentration. The applicability of the Freundlich model illustrates a multilayer adsorption process. The adsorption process is endothermic in nature. The kinetics studies showed that the adsorption follows the pseudo-second-order model on GACs and the intraparticle diffusion is the rate-controlling mechanism on CGAC.

Original language	English
Pages (from-to)	1121-1130
Number of pages	10
Journal	Separation Science and Technology
Volume	46
Issue number	7
DOIs	https://doi.org/10.1080/01496395.2010.551395
Publication status	Published - 2011 Apr

Bibliographical note

Funding Information:
This work was supported by the 21st Frontier Research Project (Sustainable Water Resources Research Center 3-4-3) and the Global Research Laboratory Project (Korea Institute of Geosciences and Mineral Resources NP2008-019). We are also thankful to the Brain Korea-21(BK-21) program of the Ministry of Education, Science & Technology (MEST) in 2009 (K20815000002) for financial support.

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Process Chemistry and Technology
Filtration and Separation

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title = "Adsorption studies for the removal of methyl tert-butyl ether on various commercially available GACs from an aqueous medium",

abstract = "This study highlights the potential of four commercially available granular-activated carbons (GACs) to remove Methyl tert-butyl ether (MTBE) from an aqueous medium. Thermodynamics and kinetics parameters were elucidated. The FT-IR spectra showed decrease in peak intensity after the adsorption. The decline in the peak intensity revealed that the adsorption occurred on available active sites over the surface of the GACs. The adsorption on GACs was maximum in the pH range 7-8, with maximum adsorption capacity (47.82 mg/g, pH 8) observed with CGAC. The contact time studies showed optimum adsorption of MTBE on CGAC (67.05 mg/g) at 300 mg/L initial MTBE concentration. The applicability of the Freundlich model illustrates a multilayer adsorption process. The adsorption process is endothermic in nature. The kinetics studies showed that the adsorption follows the pseudo-second-order model on GACs and the intraparticle diffusion is the rate-controlling mechanism on CGAC.",

author = "Khan, {Moonis Ali} and Lee, {Sang Hoon} and Sanghyuk Kang and Paeng, {Ki Jung} and Giehyeon Lee and Oh, {Sang Eun} and Jeon, {Byong Hun}",

note = "Funding Information: This work was supported by the 21st Frontier Research Project (Sustainable Water Resources Research Center 3-4-3) and the Global Research Laboratory Project (Korea Institute of Geosciences and Mineral Resources NP2008-019). We are also thankful to the Brain Korea-21(BK-21) program of the Ministry of Education, Science & Technology (MEST) in 2009 (K20815000002) for financial support.",

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Adsorption studies for the removal of methyl tert-butyl ether on various commercially available GACs from an aqueous medium. / Khan, Moonis Ali; Lee, Sang Hoon; Kang, Sanghyuk; Paeng, Ki Jung; Lee, Giehyeon; Oh, Sang Eun; Jeon, Byong Hun.

In: Separation Science and Technology, Vol. 46, No. 7, 04.2011, p. 1121-1130.

Research output: Contribution to journal › Article › peer-review

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AU - Khan, Moonis Ali

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AU - Lee, Giehyeon

AU - Oh, Sang Eun

AU - Jeon, Byong Hun

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PY - 2011/4

Y1 - 2011/4

N2 - This study highlights the potential of four commercially available granular-activated carbons (GACs) to remove Methyl tert-butyl ether (MTBE) from an aqueous medium. Thermodynamics and kinetics parameters were elucidated. The FT-IR spectra showed decrease in peak intensity after the adsorption. The decline in the peak intensity revealed that the adsorption occurred on available active sites over the surface of the GACs. The adsorption on GACs was maximum in the pH range 7-8, with maximum adsorption capacity (47.82 mg/g, pH 8) observed with CGAC. The contact time studies showed optimum adsorption of MTBE on CGAC (67.05 mg/g) at 300 mg/L initial MTBE concentration. The applicability of the Freundlich model illustrates a multilayer adsorption process. The adsorption process is endothermic in nature. The kinetics studies showed that the adsorption follows the pseudo-second-order model on GACs and the intraparticle diffusion is the rate-controlling mechanism on CGAC.

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Adsorption studies for the removal of methyl tert-butyl ether on various commercially available GACs from an aqueous medium

Abstract

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