Isotherm and thermodynamic studies of the biosorption of lead, cadmium and copper from aqueous solutions by rice bran

Chen, Yunnen; Ding, Lei; Nie, Jun

doi:10.1080/19443994.2012.691694

Cited by 14 publications

(9 citation statements)

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“…() tested the influence of DHPM on soybean dietary fiber indicated that the maximum Pb(II) binding capacity (261.42 ± 2.77 μmol/g, at pH 7.0), Chen et al. () tested the capacity of rice bran is 0.34 mmol/g, which capacity is less than RBIDF, as the capacity of IDF‐150 is 420 μmol/g at pH 7.0. Ou et al.…”

Section: Resultsmentioning

confidence: 99%

Dynamic High‐Pressure Microfluidization Treatment of Rice Bran: Effect on Pb(II) Ions Adsorption In Vitro

Wang

Luo

et al. 2018

Journal of Food Science

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Section: Resultsmentioning

confidence: 99%

Dynamic High‐Pressure Microfluidization Treatment of Rice Bran: Effect on Pb(II) Ions Adsorption In Vitro

Wang

Luo

et al. 2018

Journal of Food Science

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“…Traditional metal ion treatment methods mainly include precipitation, ion exchange, electrolysis, reverse osmosis, and adsorption. Among these treatment methods, adsorption is considered to be an excellent and promising method for the removal of heavy metals from wastewater [2][3][4][5]. Nowadays, most chelating resins developed for the removal of heavy metal ions rely on the complexation of the metal ions with the functional groups present in the chelating resins.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of 2-phenoxyethanol/formaldehyde copolymer beads by dispersion polycondensation and their adsorption properties for copper ions after polyamine modification

Song

et al. 2016

Desalination and Water Treatment

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A B S T R A C TTwo kinds of novel chelating resins were prepared by surface modification of 2-phenoxyethanol/formaldehyde copolymer beads (PB) with ethylenediamine (EA) and diethylenetriamine (DEA) (denoted as PB-EA and PB-DEA, respectively). The obtained resins were characterized by infrared spectra, scanning electron microscopy (SEM), and elemental analysis to demonstrate successful surface modification. The adsorption properties of the resins for metal ions are investigated. The results showed that the resins have higher adsorption capacities for Cu(II) than other metal ions such as Pb(II), Hg(II), Ag(I), Ni(II), Zn(II), Co(II), and Cr(III), with the maximum adsorption capacities of 0.15 mmol/g for PB-EA and 0.18 mmol/g for PB-DEA. Furthermore, the adsorption mechanism was studied in details. The adsorption processes of the resins for Cu(II) are governed by a film diffusion mechanism and follow the pseudo-first-order model well. The Langmuir model fits the equilibrium data better than the Freundlich isotherm. The adsorbed Cu(II) can be effectively desorbed with 1 M HNO 3 solution, and the resins can be used more than five adsorption-desorption cycles.

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“…The processes that have been developed to remove lead from wastewater include biosorption [4][5][6][7], electro-membrane processes [8,9], adsorption [10][11][12][13], coagulation-flocculation [14], and ion exchange [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Removal of lead(II) from water by di (2-ethylhexyl) phosphate containing ion exchange resin

Arar

2014

Desalination and Water Treatment

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In the present study, commercially available chelating resin with the di (2-ethylhexyl) phosphate functional group (Lewatit VP OC 1026) has been evaluated for its suitability for the removal of Pb 2+ from water. Studies for the removal of Pb 2+ in different resin doses, pH of the solution, adsorption mechanism, and kinetic performance of resin were carried out. The obtained results showed that the removal performance of resin strongly depends on solution pH. More than 99% removal of Pb 2+ was achieved at pH P 3. The experimental equilibrium data were tested for the Langmuir and Freundlich isotherms. Correlation coefficients indicate that the Langmuir isotherm fits better than the Freundlich isotherm. Pseudo-first-and -second-order kinetic models were used to describe kinetic data. It was determined that the removal of Pb 2+ well-fitted by second-order reaction kinetics.

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Isotherm and thermodynamic studies of the biosorption of lead, cadmium and copper from aqueous solutions by rice bran

Cited by 14 publications

References 1 publication

Dynamic High‐Pressure Microfluidization Treatment of Rice Bran: Effect on Pb(II) Ions Adsorption In Vitro

Dynamic High‐Pressure Microfluidization Treatment of Rice Bran: Effect on Pb(II) Ions Adsorption In Vitro

Synthesis of 2-phenoxyethanol/formaldehyde copolymer beads by dispersion polycondensation and their adsorption properties for copper ions after polyamine modification

Removal of lead(II) from water by di (2-ethylhexyl) phosphate containing ion exchange resin

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