Biosorption of 2,4 dichlorophenol (2,4-DCP) onto Posidonia oceanica (L.) seagrass in a batch system: Equilibrium and kinetic modeling

Demirak, Ahmet; Dalman, Ömer; Tilkan, Ezel; Yıldız, Dilek; Yavuz, Evşen; Gökçe, Cansu

doi:10.1016/j.microc.2011.04.002

Cited by 20 publications

(18 citation statements)

References 28 publications

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“…7,12,35 The pH ranges of 2-10 were used in this study to ensure the presence of the protonated form of 2,4-DCP and the increase of negative charges at the surface of the particles of bark of sweetgum. The initial pH of the solution was increased with the decrease in the adsorption capacity of 2,4-DCP (figure 2).…”

Section: Influence Of Phmentioning

confidence: 99%

“…Many of them have potential to harm human health; therefore, they have been classified as hazardous pollutants. 7 United State Environmental Protection Agency (USEPA) has registered phenolic compounds as priority pollutants. Most of the phenolic compounds are toxic and hardly biodegradable, and it can be really difficult to get rid of them in the environment.…”

Section: Introductionmentioning

confidence: 99%

“…8 Some physicochemical and biological methods including adsorption, extraction by chemical solvents, air stripping, freezing and crystallization, chemical oxidation, wet oxidation, advanced oxidation processes, biological degradation biosorption, coagulation, chlorination and liquid membrane permeation have been developed for the removal of phenolic compounds from aqueous solutions. 6,7,9,[10][11][12][13] Among these methods, the ones used for the concentration of the chlorinated phenols on the solid phase are adsorption and ion exchange methods but they are not for complete mineralization. The ones used for complete mineralization and combination of chlorophenols are chemical or biological oxidation methods.…”

Section: Introductionmentioning

confidence: 99%

“…Biosorption methods of chlorophenols were also investigated by many researchers. [7][8][9][10] According to recent studies, some natural minerals, industrial wastes, agricultural wastes, and forest wastes are low-cost adsorbent materials. [15][16][17][18] Agricultural wastes among them are one of the most promising groups of adsorbent materials.…”

Section: Introductionmentioning

confidence: 99%

“…[19][20][21] Their unique chemical composition makes these wastes economic and ecofriendly alternatives the removal of chlorophenols. 6,7,22,23 We are interested in bark of Turkish Sweetgum as biosorbent. The sweetgum, which is widely known as Turkish sweetgum.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Influence Of Phmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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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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Biosorption of 4-chlorophenol by dried anaerobic digested sludge: artificial neural network modeling, equilibrium isotherm, and kinetic study

Fanaie

Karrabi

Amin³

et al. 2016

Int. J. Environ. Sci. Technol.

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In this study, dried anaerobic digested sludge (DADS) was utilized to remove 4-chlorophenol (4-CP) from aqueous solutions. Batch biosorption experiments were carried out to investigate the effects of physicochemical parameters such as pH, contact time, biosorbent dosage, and initial concentration. Artificial neural network (ANN) was then used to predict the removal efficiency of the process. The comparison between predicted and experimental results provided a high degree of determination coefficient (R 2 = 0.98), indicating that the model could predict the biosorption efficiency with reasonable accuracy. Biosorption data were successfully described by the Freundlich isotherm and pseudofirst-order model. The Weber-Morris kinetic model indicated that intraparticle diffusion was not the only rate-controlling step, and other mechanisms may be involved in the biosorption process. The optimum pH was detected to be 3 for DADS. By increasing contact time and biosorbent dosage, the removal efficiency of 4-CP increased. Also, a decreasing trend was observed when initial concentrations were increased. The findings suggested that the results predicted by ANN are very close to the experimental values, and DADS as an available adsorbent can efficiently remove 4-CP from aqueous solutions.

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Preparation of Magnesium Doped Magnetic Nanoferrite and its Clay-Based composite: Application to the Removal of an Anionic Dye from Wastewater

2022

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Biosorption of 2,4 dichlorophenol (2,4-DCP) onto Posidonia oceanica (L.) seagrass in a batch system: Equilibrium and kinetic modeling

Cited by 20 publications

References 28 publications

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

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

Biosorption of 4-chlorophenol by dried anaerobic digested sludge: artificial neural network modeling, equilibrium isotherm, and kinetic study

Preparation of Magnesium Doped Magnetic Nanoferrite and its Clay-Based composite: Application to the Removal of an Anionic Dye from Wastewater

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