Intraparticle diffusion in liquid-phase adsorption of phenols with activated carbon in finite batch adsorber

Moon, Hee; Lee, Won Kook

doi:10.1016/0021-9797(83)90018-8

Cited by 106 publications

(35 citation statements)

References 13 publications

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“…where k F is the Freundlich isotherm constant; n is adsorption intensity which can be used to describe the heterogeneous adsorbent (Moon and Lee, 1983).…”

Section: Freundlich Isothermmentioning

confidence: 99%

Experimental study and isotherm models of water vapor adsorption in shale rocks

Shen

et al. 2018

Journal of Natural Gas Science and Engineering

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“…where k F is the Freundlich isotherm constant; n is adsorption intensity which can be used to describe the heterogeneous adsorbent (Moon and Lee, 1983).…”

Section: Freundlich Isothermmentioning

confidence: 99%

Experimental study and isotherm models of water vapor adsorption in shale rocks

Shen

et al. 2018

Journal of Natural Gas Science and Engineering

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“…The equation characterized heterogeneity factor (1/n) so, it describes the heby term (1/n) and so the Freundlich isotherm describes heterogeneous system (Moon and Lee, 1983;Al-Duri and McKay 1998).…”

Section: Adsorption Isothermsmentioning

confidence: 99%

Linearized and non-linearized isotherm models comparative study on adsorption of aqueous phenol solution in soil

Balaji

Das

2009

Int. J. Environ. Sci. Technol.

120

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ABSTRACT:Use of native soil in adsorption of phenol from industrial wastewater has been one of the attractive option for dephenolation, especially in view of low cost and ease in accessibility, as well as scope for regeneration (or, at least reuse). However, an effective usage of the adsorbent necessitates a deeper understanding of the adsorption characteristics. Most of the study of adsorption characteristics are confined to analysis of mono-and bi-parametric isotherm models (and rarely, linearized multi-parametric isotherm models), due to the difficulties in solving higher parametric models, as well as fairly satisfying results by lower-parametric models. In the present study, adsorption batch studies were carried out using a naturally and widely available common soil of south India (namely, Adhanur soil), for removal of phenol from the aqueous solution, with an explicit objective of comparison of linear and non-linear regression methods for finding variation in isotherm coefficients and fitness of the models. Six linearized isotherm models (including four linearized Langmuir models) and three non-linear isotherm model were discussed in this paper, and their coefficients were estimated. Although all the studied isotherm models showed fairly good fit to the experimental data, but Redlich-Peterson isotherm was found to be the best representative for phenol-sorption on the used soil adsorbent. Besides, it was observed that to determine the isotherm parameters non-linear isotherm models were found to be the best representative of adsorption characteristics, than their linearized counter-parts.

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“…The external mass transfer coefficient as well as the axial dispersion coefficient were Since diffusion is considered to be predominant in the mass transfer through the 409 micropore system of the activated carbon [47] and [51], the mass balance within a 410 differential radial section of an adsorbent particle can be described by the following 411 equation:…”

mentioning

confidence: 99%

“…The use of two mass transfer resistance models for adsorption is generally accepted as 360 the best choice for describing the adsorption process in activated carbons [47]. between the bulk and the external surface of the adsorbent, respectively.…”

mentioning

confidence: 99%