Comparison of adsorption equilibrium and kinetic models for a case study of pharmaceutical active ingredient adsorption from fermentation broths: parameter determination, simulation, sensitivity analysis and optimization

Likozar, Blaž; Senica, David; Pavko, Aleksander

doi:10.1590/s0104-66322012000300020

Cited by 18 publications

(27 citation statements)

References 31 publications

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“…The mono-and bidisperse pore models have been applied by Likozar et al to polymeric adsorbents [59,60]. The monodisperse pore model (MPM) is based on the mass balance reported in Eq.…”

Section: Mono-and Bidisperse Pore Modelsmentioning

confidence: 99%

Fluid‐Solid Adsorption in Batch and Continuous Processing: A Review and Insights into Modeling

et al. 2017

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Adsorption is a highly versatile separation technique that can be used both for product separation and waste purification, involving selective interaction of one or more compounds from the liquid phase on a solid called adsorbent. In literature, several models have been proposed to describe both the kinetics and the equilibrium data of different systems. These models are relevant for fluid-solid adsorption and fluid-solid reactions. Kinetic models can be classified in either pseudo-kinetic or diffusive models. Most of them cannot be applied directly in simulating the behavior of continuous columns, while others are applicable only in a narrow range of experimental conditions. The performances of a general continuous adsorption model have been tested by performing a dedicated parametric investigation with the aim to give an overview of how the parameters affect the continuous operation

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“…The mono-and bidisperse pore models have been applied by Likozar et al to polymeric adsorbents [59,60]. The monodisperse pore model (MPM) is based on the mass balance reported in Eq.…”

Section: Mono-and Bidisperse Pore Modelsmentioning

confidence: 99%

Fluid‐Solid Adsorption in Batch and Continuous Processing: A Review and Insights into Modeling

et al. 2017

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“…25,26,29 In this work, the Langmuir and Freundlich isotherm models were used to showing the relationship between the amount of adsorbed MG and MB dyes and their concentration in solution at constant pH at room temperature. Langmuir isotherm model suggests that the adsorption of adsorbate molecules by the adsorbent materials takes place on a homogenous surface by monolayer without any interaction with adjacent adsorbed molecules.…”

Section: Adsorption Isotherm Modelsmentioning

confidence: 99%

“…Liquid and gaseous substances can be adsorbed in suitable adsorbent and is widely used in isolation and purification processes in the chemical industries including biotechnology and environmental technology. [24][25][26] Adsorption is very reasonably superior technique because of simplicity of design availability, ability to treat dyes more concentrated from other techniques. 27,28 Being a dynamic process, the rate of adsorption in adsorption equilibrium is controlled by mass transfer processes.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Kinetics of Malachite Green and Methylene Blue from Aqueous Solutions Using Surfactant-modified Organoclays

Ullah

Nafees²,

Iqbal

et al. 2017

ACSi

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The main objective of this research is to study the adsorption behaviour of malachite green and methylene blue dyes onto the surfactant modified natural clays. The results of SEM, XRD, IR, and thermal analysis confirms the intercalation of organic moiety in to the clay. The adsorption results show that pseudo-first order kinetics best fitted for both the dyes adsorbed on organo-clay. The data also reveals that both dyes are in a good agreement with Langmuir isotherm in both types of modified clays. The value of separation factor, R L , from Langmuir equation and Freundlich constant, n, give an indication of favourable adsorption. The maximum adsorption capacity q m based on Langmuir model was found to be 294-303 mg/g at 25 °C, is in good agreement with the experimental values.

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“…Langmuir isotherm model was chosen, because of physical meaning of adsorption capacity (Q m ). 41 The value of adsorption capacity (Q m ) for 2,4-DCP in present study was compared with the adsorption capacity of different adsorbents for 2,4-DCP (Table 6). …”

Section: 22mentioning

confidence: 99%

Biosorption of 2,4 dichlorophenol onto Turkish Sweetgum bark in a batch system: equilibrium and kinetic modeling

Yıldız¹,

Keskin²,

Demirak³

2017

ACSi

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In this study, Turkish Sweetgum bark was used as a new biosorbent to investigate the removal of hazardous 2,4 dichlorophenol (2,4-DCP) from aqueous solutions in batch biosoption experiments. The effective usage of Turkish sweetgum bark is a meaningful work for environmental utilization of agricultural residues. The effects of experimental parameters like solution pH, contact time, initial concentration of adsorbate and amount of bisorbent dosage were investigated in a series of batch studies at 25 °C. Taguchi's Orthogonal Array (OA) analysis was used to find the best experimental parameters for the optimum design process in this study. The functional groups and surface properties of biosorbent were characterized by using Fourier transformer infrared (FTIR) and scanning electron microscopy (SEM) techniques. The experimental data were fitted to Langmuir isotherm and Freundlich isotherm models. There is a good agreement between the parameters and this confirms the monolayer adsorption of 2,4-DCP onto sweetgum bark. As a result of kinetic studies, the pseudo-second-order kinetic model was found to be suitable for all the data. Also, the results of the study show that Turkish Sweetgum bark can be potential as a low-cost alternative commercial adsorbents for removal 2,4 dichlorophenol from aqueous solutions.

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Comparison of adsorption equilibrium and kinetic models for a case study of pharmaceutical active ingredient adsorption from fermentation broths: parameter determination, simulation, sensitivity analysis and optimization

Cited by 18 publications

References 31 publications

Fluid‐Solid Adsorption in Batch and Continuous Processing: A Review and Insights into Modeling

Fluid‐Solid Adsorption in Batch and Continuous Processing: A Review and Insights into Modeling

Adsorption Kinetics of Malachite Green and Methylene Blue from Aqueous Solutions Using Surfactant-modified Organoclays

Biosorption of 2,4 dichlorophenol onto Turkish Sweetgum bark in a batch system: equilibrium and kinetic modeling

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