Equilibrium, kinetic and thermodynamic studies of uranium biosorption by calcium alginate beads

Bai, Jing; Fan, Fangli; Wu, Xianxin; Tian, Wei; Zhao, Lanbo; Yin, Xiaobin; Fan, Fuyou; Li, Zhan; Tian, Longlong; Wang, Yang; Qin, Zhi; Guo, Junjun

doi:10.1016/j.jenvrad.2013.08.010

Cited by 47 publications

(20 citation statements)

References 28 publications

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“…There are two kinds of chemical adsorption, activated and, less frequently, non-activated. In the activated chemical adsorption, the rate varies with temperature according to finite activation energy between 8.4 and 83.7 kJ/mol (Bai et al 2013). In the nonactivated chemical adsorption, sorption occurs very rapidly, suggesting the activation energy is near zero (Aksu 2002).…”

Section: Equilibrium Studymentioning

confidence: 99%

Valorization of the Spent Biomass of Pleurotus mutilus Immobilized as Calcium Alginate Biobeads for Methylene Blue Biosorption

et al. 2016

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The production of antibiotics in Algeria generates large amounts of residual biomass that should be considered a valuable biosorbent rather than waste. The aim of this work was to assess the use of antibiotic by-product biomass as a biosorbent for methylene blue removal from wastewater. Therefore, the biosorption of the cationic dye methylene blue by spent biomass of Pleurotus mutilus immobilized as calcium alginate biobeads (CAB) was studied in batch and column modes. The maximum uptake capacity was found to be 23 mg/g at a pH value of 10. Methylene blue biosorption by CAB was found to be spontaneous and exothermic. The adsorption capacity of the used biobeads was regenerated in continuous mode by washing the CAB with HCl (0.5 M) solution. Globally, this work showed the high potential of CAB made with spent biomass of P. mutilus as a biosorbent for the treatment of water contaminated with methylene blue.

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Section: Equilibrium Studymentioning

confidence: 99%

Valorization of the Spent Biomass of Pleurotus mutilus Immobilized as Calcium Alginate Biobeads for Methylene Blue Biosorption

et al. 2016

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“…Uranium is a potential carcinogen that causes cancer. For this reason, the removal and recovery of uranium are of special importance [1][2][3][4][5]. So, seeking a way for cleaning uranium ions contaminated water effectively and thoroughly has become an important research topic.…”

Section: Introductionmentioning

confidence: 99%

Amidoxime functionalized Trametes trogii pellets for removal of uranium(VI) from aqueous medium

Bayramoğlu

Arıca

2015

J Radioanal Nucl Chem

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Amidoxime modified Trametes trogii pellets were prepared by sequential reaction of fungal surfaces with glutaraldehyde, diaminomaleonitrile and hydroxylamine. Maximum biosorption capacities of the modified and native pellets were found to be 447.4 and 238.2 mg U(VI) g -1 fungal pellets, respectively. Biosorption equilibriums were established in about 45 min and the correlation regression coefficients show that the adsorption process can be well-defined by Langmuir equation. The biosorption of U(VI) ions was well described by the pseudo-second order kinetic model. The variations in enthalpy and entropy for the biosorbents were also calculated.

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“…where K F is Freundlich isotherm constant related to the adsorption capacity (mg/g) and n is an empirical parameter correlated to the adsorption intensity, depending on the heterogeneity of the sorbent material (Bai et al, 2013;Dada et al, 2012).…”

Section: Application Of Adsorption Equilibrium Isothermsmentioning

confidence: 99%

Removal of copper and cadmium in acid mine drainage using Ca-alginate beads as biosorbent

Park

Lee

2017

Geosci J

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Biosorption experiments were performed to investigate the ability of Ca-alginate beads as biosorbent for the removal of Cu and Cd in acid mine drainage (AMD). From the results of batch experiments, the removal efficiencies of both Cu and Cd for Ca-alginate beads were found to increase to 95% within 3 hours in the temperature range of 15-40 °C, indicating that it is possible to treat AMD using Ca-alginate beads within a short time period under various field conditions. For the column experiments, 381.8 g of Ca-alginate beads was packed in a Pyrex column (2.5 cm in diameter and 100 cm in height) and 119.7 liters (900 pore volumes) of AMD from the Ilgwang mine in Korea was successfully treated. The Cu and Cd removal efficiencies were maintained at levels higher than the Korean remediation goal (86% for Cu and 58% for Cd) and it was possible to treat more than 300 mL of AMD using only 1 g of Ca-alginate beads. Although AMD with a pH below 3 was injected into the column, the pH of the effluents was maintained above 3 for 1,140 pore volumes of flushing due to the buffer action of the beads. In SEM/EDS analysis of the Ca-alginate beads after the experiment, void spaces of the beads were found to be filled with precipitates of heavy metals, showing that Ca-alginate beads can be successfully used as a biosorbent for the removal of Cu and Cd in AMD.

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Equilibrium, kinetic and thermodynamic studies of uranium biosorption by calcium alginate beads

Cited by 47 publications

References 28 publications

Valorization of the Spent Biomass of Pleurotus mutilus Immobilized as Calcium Alginate Biobeads for Methylene Blue Biosorption

Valorization of the Spent Biomass of Pleurotus mutilus Immobilized as Calcium Alginate Biobeads for Methylene Blue Biosorption

Amidoxime functionalized Trametes trogii pellets for removal of uranium(VI) from aqueous medium

Removal of copper and cadmium in acid mine drainage using Ca-alginate beads as biosorbent

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