Equilibrium and thermodynamic studies on biosorption of Pb(II) onto Candida albicans biomass

Baysal, Zübeyde; Çınar, Ercan; Bulut, Yasemin; Alkan, Hüseyin; Doğru, Mehmet

doi:10.1016/j.jhazmat.2008.02.122

Cited by 117 publications

(60 citation statements)

References 25 publications

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“…These results suggest that biosorption of nickel and zinc ions by the yeast biomass is a process of chemical adsorption. Shinde et al 3 and Baysal et al 28 report that the activation energy for the chemical adsorption is usually greater than 4-6 kJ/mol. Positive values of activation energy (E A ) confi rm the earlier conclusion that higher temperatures promote the biosorption of nickel and zinc ions by Y. lipolytica biomass and the process is endothermic.…”

Section: Biosorption Kineticsmentioning

confidence: 99%

“…The rate of the process depends fi rst off all on the stages of the mass transfer. The fi rst stage is characterized by the most intense sorption, which is due to the accessibility of the free active sites on the surface of the sorbent and thereby a large concentration gradient that activates the process 1, 17, 19, 28 . In the case of the Y. lipolytica biomass, the fi rst stage of rapid transfer of metals to active sites on the biosorbent's surface lasted approx.…”

Section: Eff Ect Of Contact Time and Temperaturementioning

confidence: 99%

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Biosorption of nickel (II) and zinc (II) from aqueous solutions by the biomass of yeast Yarrowia lipolytica

Wierzba

2017

Polish Journal of Chemical Technology

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This study examined the biosorption process of Ni(II) and Zn(II) from an aqueous solution by dead biomass of Yarrowia lipolytica. Optimum biosorption conditions were determined as a function of pH, biomass dosage, contact time, and temperature. The biosorbent was characterized by FTIR, which indicated the participation of hydroxyl, carboxyl, amide and amine groups in the process of binding the metal ions. The results showed that the biosorption processes of both metal ions closely followed pseudo-second order kinetics. The equilibrium data of Ni(II) and Zn(II) ions at 20, 30 and 40 o C fi tted the Langmuir and Freundlich isotherm models. Langmuir isotherm provided a better fi t to the equilibrium data, with a maximum biosorption capacity of the Y. lipolytica biomass for Ni(II) and Zn(II) of 30.12 and 44.44 mg/g respectively. The calculated thermodynamic parameters demonstrated that the biosorption of Ni(II) and Zn(II) ions onto the Y. lipolytica was feasible, spontaneous and endothermic.

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Section: Biosorption Kineticsmentioning

confidence: 99%

Section: Eff Ect Of Contact Time and Temperaturementioning

confidence: 99%

Biosorption of nickel (II) and zinc (II) from aqueous solutions by the biomass of yeast Yarrowia lipolytica

Wierzba

2017

Polish Journal of Chemical Technology

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“…Bacteria [5,26,27], yeast [24], algae [28], and fungi [29] are biological microorganisms that have been immobilized and employed as sorbents in the biosorption process. It is well known that the cell wall constituents of microorganisms play an important role in metal sequestering.…”

Section: +2mentioning

confidence: 99%

Biosorption of Cd+2, Cu+2, and Ni+2 Ions by a Thermophilic Haloalkalitolerant Bacterial Strain (KG9) Immobilized on Amberlite XAD-4

Alkan¹,

Güven²,

Güven³

et al. 2015

Pol. J. Environ. Stud.

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Direct analysis of trace levels of metal ions in environmental and biological samples is rather difficult using conventional analytical techniques such as flame atomic absorption spectrometry (FAAS) because of very low concentrations of these metal ions and matrix interferences [1,2]. However, this technique also presents desirable characteristics such as operational facilities, good selectivity, and low cost. In spite of high sensitivities obtained by ICP-OES and ICP-MS, these techniques are relatively expensive and present limitations related to the concomitants such as high dissolved solid contents of samples [3,4]. Therefore, sample preconcentration is becoming an essential treatment step before flame atomic absorption determination [5,6].The widely used analytical techniques for the separation and preconcentration of metal ions include solid-phase extraction [7][8][9][10][11][12], liquid-liquid extraction [13,14], coprecipitation [15], ion-exchange [16,17], and chelating resins [18]. Solid-phase extraction of heavy metal ions for prePol. J. Environ. Stud. Vol. 24, No. 5 (2015), 1903-1910 Original Research . The proposed procedure was applied for the determination of metal ions in river water, drinking water, and mushrooms. The accuracy of the developed procedure was tested by analyzing NRCC-SLRS4 riverine water and SRM1570a spinach leaves as the certified reference materials. Biosorption of Cd

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“…So, the biosorption capacity increased from 3.67 ± 0. 23 [33]. The increase in the biosorption capacity with the increase in temperature indicates that the biosorption of Ni 2+ and Cd 2+ onto Eup.…”

Section: Effect Of Temperaturementioning

confidence: 98%

Biosorption of Ni2+ and Cd2+ from Aqueous Solutions Using NaOH-Treated Biomass of Eupenicillium ludwigii: Equilibrium and Mechanistic Studies

Al-Fakih¹

2015

OJAppS

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The removal of Ni 2+ and Cd 2+ ions by Eupenicillium ludwigii biomass was studied in a batch system. The optimum pH for the biosorption was 6 for Ni 2+ and 5 for Cd 2+ . Temperature changes in the range from 15˚C to 40˚C affected the biosorption capacity, and the nature of the reaction was found to be endothermic for both metal ions. HCl was the best desorbing agent for the desorption of both metals. Chemical modifications of the biomass demonstrated that carboxyl and amine groups played an important role in Ni 2+ and Cd 2+ biosorption. Ion exchange mechanism was also suggested in the biosorption process.

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Equilibrium and thermodynamic studies on biosorption of Pb(II) onto Candida albicans biomass

Cited by 117 publications

References 25 publications

Biosorption of nickel (II) and zinc (II) from aqueous solutions by the biomass of yeast Yarrowia lipolytica

Biosorption of nickel (II) and zinc (II) from aqueous solutions by the biomass of yeast Yarrowia lipolytica

Biosorption of Cd+2, Cu+2, and Ni+2 Ions by a Thermophilic Haloalkalitolerant Bacterial Strain (KG9) Immobilized on Amberlite XAD-4

Biosorption of Ni<sup>2+</sup> and Cd<sup>2+</sup> from Aqueous Solutions Using NaOH-Treated Biomass of <i>Eupenicillium ludwigii</i>: Equilibrium and Mechanistic Studies

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Equilibrium and thermodynamic studies on biosorption of Pb(II) onto Candida albicans biomass

Cited by 117 publications

References 25 publications

Biosorption of nickel (II) and zinc (II) from aqueous solutions by the biomass of yeast Yarrowia lipolytica

Biosorption of nickel (II) and zinc (II) from aqueous solutions by the biomass of yeast Yarrowia lipolytica

Biosorption of Cd+2, Cu+2, and Ni+2 Ions by a Thermophilic Haloalkalitolerant Bacterial Strain (KG9) Immobilized on Amberlite XAD-4

Biosorption of Ni&lt;sup&gt;2+&lt;/sup&gt; and Cd&lt;sup&gt;2+&lt;/sup&gt; from Aqueous Solutions Using NaOH-Treated Biomass of &lt;i&gt;Eupenicillium ludwigii&lt;/i&gt;: Equilibrium and Mechanistic Studies

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Biosorption of Ni<sup>2+</sup> and Cd<sup>2+</sup> from Aqueous Solutions Using NaOH-Treated Biomass of <i>Eupenicillium ludwigii</i>: Equilibrium and Mechanistic Studies