Determination of lead biosorption properties by experimental and modeling simulation study

Chen, Jiaping; Wang, Lin; Zou, Shuai-Wen

doi:10.1016/j.cej.2006.11.012

Cited by 49 publications

(18 citation statements)

References 12 publications

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“…4). This behaviour is analogous to the pH-dependence reported for the uptake of Cu, Zn, Ni, Cd, Hg and Pb by alginate gel beads [7][8][9]11], and to the pH-dependence observed for Pb sorption by other alginate derivatives [4,38,39]. The similar dependence of pH observed in different preparations of alginate-based sorbents suggests that they share the same basic mechanism of metal binding.…”

Section: Effect Of Ph In Sorption Capacity Of Dry Alginate Beadssupporting

confidence: 76%

Kinetic analysis of metal uptake by dry and gel alginate particles

Lagoa

Rodrigues

2009

Biochemical Engineering Journal

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Section: Effect Of Ph In Sorption Capacity Of Dry Alginate Beadssupporting

confidence: 76%

Kinetic analysis of metal uptake by dry and gel alginate particles

Lagoa

Rodrigues

2009

Biochemical Engineering Journal

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“…, b adsorption isotherm of Cu 2? ions in calcium alginate, c relationship between q eq obtained by single component system models, q mod , and through experimental data, q exp d Relationship between q eq obtained by binary system models, q mod , and through experimental data, q exp Adsorption This behavior is consistent with the results obtained by (Chen et al 2007) researching the removal of Lead using calcium alginate, who found out that the amount of Lead removed from a solution free from Sodium and Calcium ions is 2.24 and 4.98 meq/g, respectively higher than in solutions containing Na ? and Ca 2?…”

Section: Equilibrium Studysupporting

confidence: 89%

Chemical equilibrium of ion exchange in the binary mixture Cu2+ and Ca2+ in calcium alginate

et al. 2015

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Biopolymer alginate is capable of triggering interchain interactions in the presence of divalent and trivalent cations. Calcium alginate particles obtained by the emulsification method have been used in ion-exchange packed bed tests to remove synthetic copper effluents. Adsorption equilibrium data were obtained from single and binary component systems, which were subsequently subject to mathematical modeling. In the case of the modeling system with binary components, where the calcium was considered as a second ion, there was no significant improvement for the models analyzed, in counterpoise to the isotherm models applied to the single component system. The ideal law of mass action and the law of mass action which presupposed that both phases were non-ideal showed similar results. This process was found to be effective and feasible for industrial applications used to in heavy metal removal processes.

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“…It can cause diseases like anemia, encephalopathy, hepatitis, and nephritic syndrome (Lo et al 1999). Previous studies have reported that moderate poisoning from lead(II) cation exposure can result in neurobehavioral and intelligence discrepancies in humans (Selatnia et al 2004;Chen et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Application of Graphitic Bio-Carbon using Two-Level Factorial Design for Microwave-assisted Carbonization

Chowdhury¹,

Yehye²,

Julkapli³

et al. 2016

BioResources

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A novel intermittent microwave-assisted carbonization method was developed to prepare bio-char (BWSC) from Durian wood sawdust (BWS). The BWS was further activated using a base-catalytic approach to produce a graphitic form of bio-carbon (BWSAC). A three factor, twolevel central composite (CCD) experimental design was used to maximize Pb(II) ion removal from aqueous solution using BWSAC. Three independent variables (initial pH of solution (pH0) ranging from 2 to 8, initial metal ion concentration of Pb(II) cations (C0) ranging from 50 to 100 mg/L, and contact time (Ct) ranging from 10 to 300 min) were consecutively coded as x1, x2, and x3 at three levels (−1, 0 and 1) of the design matrix. The experimental conditions in terms of actual factors were determined to be x1 (pH0) = 5.86, x2 (C0) = 57.77 mg/L, and x3 (temperature) = 53.85 °C, and the resultant Pb(II) ion removal efficiency (y1) obtained was 92.73%, with a model desirability of 0.974. The change in physiochemical properties after carbonization as well as activation was observed by scanning electron microscopy (SEM), X-ray diffraction (XRD), Brunauer, Emmett and Teller surface area analysis (BET), Thermogravimetric analysis (TGA), Ultimate analysis, and Fourier transform infrared spectroscopy (FTIR) .

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Determination of lead biosorption properties by experimental and modeling simulation study

Cited by 49 publications

References 12 publications

Kinetic analysis of metal uptake by dry and gel alginate particles

Kinetic analysis of metal uptake by dry and gel alginate particles

Chemical equilibrium of ion exchange in the binary mixture Cu2+ and Ca2+ in calcium alginate

Application of Graphitic Bio-Carbon using Two-Level Factorial Design for Microwave-assisted Carbonization

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