ADSORPTION OF METHYL TERT-BUTYL ETHER USING GRANULAR ACTIVATED CARBON: EQUILIBRIUM AND KINETIC ANALYSIS

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CHEN D.Z.; ZHANG J.X.; CHEN J.M.

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Journal: INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST) Year:2010 | Volume:7 | Issue:2 (26) Page(s): 235-242

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Title

ADSORPTION OF METHYL TERT-BUTYL ETHER USING GRANULAR ACTIVATED CARBON: EQUILIBRIUM AND KINETIC ANALYSIS

Author(s)

CHEN D.Z. | ZHANG J.X. | CHEN J.M. | Issue Writer Certificate

Keywords

ADSORPTION EQUILIBRIUM

INTRAPARTICLE DIFFUSION MODEL

MECHANISM

MODELING

Abstract

The adsorption of methyl tert-butyl ether by granular activated carbon was investigated. The experimental data were analyzed using the Freundlich isotherm and the Langmuir isotherm. Although equilibrium data were found to follow Freundlich isotherm model, it were fitted better by the Langmuir model with a maximum adsorption capacity of 204.1 mg/g. The kinetic data obtained at different concentrations were analyzed to predict the constant rate of adsorption using three common kinetic models: pseudo-first-order, pseudo-second-order equation and intraparticle diffusion equation. The pseudo-second-order model was suitable for describing the adsorption kinetics for the removal of methyl tert-butyl ether from aqueous solution onto granular activated carbon. Both the Lagergren first-order rate constant k1 and pseudo-second-order rate constant k2 decrease with increasing initial concentrations of methyl tert-butyl ether and the intraparticle diffusion rate constant kp shows the reverse characteristic. Analysis of sorption data using a boyd plot confirmed that external mass transfer is the main rate-limiting step at the initial stage of adsorption. Results illustrate that granular activated carbon is an effective adsorbent for methyl tert-butyl ether and also provide specific guidance into adsorption of methyl tert-butyl ether on granular activated carbon in contaminated groundwater.

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APA: Copy

CHEN, D.Z., ZHANG, J.X., & CHEN, J.M.. (2010). ADSORPTION OF METHYL TERT-BUTYL ETHER USING GRANULAR ACTIVATED CARBON: EQUILIBRIUM AND KINETIC ANALYSIS. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), 7(2 (26)), 235-242. SID. https://sid.ir/paper/285234/en

Vancouver: Copy

CHEN D.Z., ZHANG J.X., CHEN J.M.. ADSORPTION OF METHYL TERT-BUTYL ETHER USING GRANULAR ACTIVATED CARBON: EQUILIBRIUM AND KINETIC ANALYSIS. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST)[Internet]. 2010;7(2 (26)):235-242. Available from: https://sid.ir/paper/285234/en

IEEE: Copy

D.Z. CHEN, J.X. ZHANG, and J.M. CHEN, “ADSORPTION OF METHYL TERT-BUTYL ETHER USING GRANULAR ACTIVATED CARBON: EQUILIBRIUM AND KINETIC ANALYSIS,” INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), vol. 7, no. 2 (26), pp. 235–242, 2010, [Online]. Available: https://sid.ir/paper/285234/en

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