Incorporation of selectivity factor in modeling binary component adsorption isotherms for heavy metals-biomass system

Soetaredjo, Felycia Edi; Kurniawan, Alfin; Ki, Ong Lu; Ismadji, Suryadi

doi:10.1016/j.cej.2012.12.077

Cited by 43 publications

(12 citation statements)

References 41 publications

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“…This competition may act as the controlling factor for the adsorption process [16,23] and such phenomenon is not captured by original extended Langmuir model. Recently, Kurniawan et al [23] and Soetaredjo et al [16] modified the extended Langmuir model by including fractional surface loading or coverage [23] and selectivity factor [16]. Since both epicatechin and catechin are organic compounds, the fractional surface loading approach by Kurniawan et al [23] is more suitable to represent the binary adsorption data of this study.…”

Section: Adsorption Isothermsmentioning

confidence: 99%

“…Therefore it will be convenient if the multi-component isotherm can be constructed based on single adsorption isotherms. Various models have been developed for this purpose and one of the most widely used is the extended Langmuir and its modified forms [16,22,23]. The extended Langmuir model for a two-component system can be expressed as:…”

Section: Adsorption Isothermsmentioning

confidence: 99%

“…Pseudo first and second order kinetic models were used to correlate the adsorption dynamic or kinetic data. The adsorption equilibrium data was evaluated using Langmuir model for single component, while modified extended-Langmuir model with incorporation of solute's selectivity factor was used to study the correlation [16]. The feasibility and adsorption performance of activated carbon in recovering epicatechin and catechin was also tested in real effluent.…”

Section: Introductionmentioning

confidence: 99%

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Recovery of catechin and epicatechin from sago waste effluent: Study of kinetic and binary adsorption isotherm studies

Soetaredjo

Ismadji

Santoso

et al. 2013

Chemical Engineering Journal

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. Recovery of catechin and epicatechin from sago waste effluent. Supercritical CO 2 desorption of catechin and epicatechin from activated carbon. Adsorption of catechin and epicatechin in binary system. a r t i c l e i n f o b s t r a c tThe recovery of valuable phenolic compounds (catechin and epicatechin) from sago waste effluent by activated carbon adsorption was studied in this work. Single and binary component of catechin and epicatechin was studied in static mode using synthetic effluent. Langmuir model was applied to evaluate the adsorption equilibrium data in single system. In binary system, the modified extended Langmuir model by inclusion of surface coverage was used to represent the adsorption data. All experimental data were well represented either by Langmuir model or its modified form. For kinetic study, it was found that pseudo-second order model represents the experimental data better than pseudo-first order model. Adsorption study using real sago waste effluent indicated that activated carbon adsorption process is promising for recovery of valuable phenolic compounds. Supercritical CO 2 extraction of phenolic compounds from activated carbon resulted in low recovery. The addition of ethanol as co-solvent significantly enhanced the desorption of catechin and epicatechin from activated carbon.

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Section: Adsorption Isothermsmentioning

confidence: 99%

Section: Adsorption Isothermsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Recovery of catechin and epicatechin from sago waste effluent: Study of kinetic and binary adsorption isotherm studies

Soetaredjo

Ismadji

Santoso

et al. 2013

Chemical Engineering Journal

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“…Another study tried to screen bacteria that are able to absorb certain precious metals with high selectivity under competitive conditions. For binary metal system, the adsorption parameters of extended-Langmuir model were modified by introducing a selectivity factor of the solute [21].…”

Section: Selectivitymentioning

confidence: 99%

New Biosorbent Materials: Selectivity and Bioengineering Insights

Kyzas

Matis

2014

Processes

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Many researchers have studied the biosorption of different pollutants. However, a quite limited number of works focus on selectivity, which may be characterized as specific property for each biosorbent. Two main criteria need to be adopted for the selection and synthesis of modern biosorbents, such as their rebinding capacity and selectivity for only one target, molecule, ion, etc. Selective biosorption could be achieved using in synthesis an innovative technique termed molecular imprinting; the idea applied through specific polymers (Molecular Imprinted Polymers (MIPs)) was used in many fields, mainly analytical. In the present work, also isotherm and kinetic models were reviewed highlighting some crucial parameters, which possibly affect selectivity. A critical analysis of the biosorption insights for biosorbents, mostly selective, describes their characteristics, advantages and limitations, and discusses various bioengineering mechanisms involved.

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“…[10][11][12] Since the operating conditions can be potentially infinite in terms of combination of pollutant concentrations, the availability of reliable models to describe and/or predict the behavior of a certain adsorption system is an invaluable tool. In the literature, different models, such as the Langmuir model, 13,14 modified competitive Langmuir model, 13 extended Langmuir model, 15,16 and Freundlich and extended Freundlich model, 15 have been reported to theoretically describe the adsorption phenomena in both single-compound and binary systems.…”

Section: Introductionmentioning

confidence: 99%

New insights into single-compound and binary adsorption of copper and lead ions on a treated sea mango shell: experimental and theoretical studies

Sellaoui

Soetaredjo

Ismadji

et al. 2017

Phys. Chem. Chem. Phys.

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Herein, adsorption isotherms of Pb(II) and Cu(II) ions on treated sea mango fruit in both single-compound and binary systems were experimentally realized at different temperatures in the range of 30-50 1C.Experimental results show that adsorption of Pb(II) was more as compared to that of Cu(II) ions; however, for both ions, a significant reduction in the adsorption capacity was observed in the binary system as compared to that in the single-compound systems. Moreover, under all the investigated conditions, adsorption seems to be promoted by an increase in temperature. To understand and interpret the experimental evidences, the Hill and competitive Hill models developed on the basis of the grand canonical ensemble were applied for the analysis of adsorption equilibrium data. These models contain some physicochemical parameters that allow an exhaustive analysis of the dynamics of single-compound and binary adsorptions. Based on the fitting results, in particular, through the evaluation of the number of ions bonded per site (n and n i ), it was found that lead and copper ions interacted by inclined and horizontal positions on treated sea mango in single-compound and binary systems, respectively. In addition, based on the same parameters, a significant interaction between ions was retrieved. A study focused on the saturation adsorption capacity in single-compound and binary systems affirmed that the adsorbent was more selective for lead than for copper. The reduction of the adsorbed capacity ratio between the binary and single-compound systems (i.e. Q b /Q s ) explained and confirmed that an inhibition effect between copper and lead ions at the same receptor site occurred. Finally, based on the energetic investigations, it was deduced that the adsorption energy represented the dominant factor promoting the greater adsorption of lead than that of copper in both systems.

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Incorporation of selectivity factor in modeling binary component adsorption isotherms for heavy metals-biomass system

Cited by 43 publications

References 41 publications

Recovery of catechin and epicatechin from sago waste effluent: Study of kinetic and binary adsorption isotherm studies

Recovery of catechin and epicatechin from sago waste effluent: Study of kinetic and binary adsorption isotherm studies

New Biosorbent Materials: Selectivity and Bioengineering Insights

New insights into single-compound and binary adsorption of copper and lead ions on a treated sea mango shell: experimental and theoretical studies

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