Biosorption of Cu(II) and Zn(II) onto a lignocellulosic substrate extracted from wheat bran

Dupont, Laurent; Bouanda, Jamila; Dumonceau, J.; Aplincourt, Michel

doi:10.1007/s10311-004-0095-2

Cited by 50 publications

(15 citation statements)

References 10 publications

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“…It has no commercial value, since it is rejected by the industry, and a high biodisponibility in the Champagne-Ardenne region, where an intensive cereal production is developed. In a previous work, we confirmed the suitability of this material in biosorption processes using packed bed column (Dupont et al 2005), which constitutes an advantage for its applicability in wastewaters treatments.…”

Section: Introductionsupporting

confidence: 85%

Arsenic adsorption on lignocellulosic substrate loaded with ferric ion

2007

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We loaded a lignocellulosic substrate extracted from wheat bran with ferric ions. This new lowcost adsorbent was prepared for the adsorption and removal of arsenate and arsenite ions from aqueous systems. The loading process of Fe in this biomaterial was done by hydrolization of a ferric salt while an alkaline solution was added dropwise. The new material obtained has a high sensivity to arsenite and arsenate species. Here, we investigated the effect of contact time, pH, and Fe content on the adsorption of both arsenic ions on the new material. This adsorption was found to be highly pH-dependent, which can be explained on the basis of electrostatic interactions between ionic species in solution and the "FeOH surface groups. The maximum adsorption capacity of arsenite and arsenate species vary linearly with the amount of Fe loaded on the lignocellulosic substrate.

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Section: Introductionsupporting

confidence: 85%

Arsenic adsorption on lignocellulosic substrate loaded with ferric ion

2007

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“…Parameters of breakthrough curves of the fixed-bed column experiments for Cr biosorption by brewers draff and grape waste Initial pH Q -flow rate; m -mass of the sorbent; t s -saturation time of the fixed bed; V ef -total volume of effluent, m tot -total amount of metal (Cr) sent to the column; m sorb -total amount of sorbed metal (Cr); R -metal removal; q -sorption capacity doi: 10.17221/3/2015-SWR (Šillerová et al 2013). A significant effect of pH on DOC concentration was observed, because these compounds can be removed easily from the biomass under acidic conditions (Dupont et al 2005). Effect of aqueous DOC on Cr mobilization from a contaminated soil.…”

Section: Resultsmentioning

confidence: 99%

Biosorption of Cr(VI) from natural groundwater and the effect of DOC-rich treated water on Cr dissolving from contaminated soil

Šillerová¹,

Vaněk²,

Chrastný³

et al. 2015

Soil & Water Res.

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AbstractŠillerová H., Vaněk A., Chrastný V., Komárek M. (2015): Biosorption of Cr(VI) from natural groundwater and the effect of DOC-rich treated water on Cr dissolving from contaminated soil. Soil & Water Res., 10: 236-243.Brewers draff and grape waste were used as efficient biosorbents for removing Cr(VI) from contaminated groundwater. Additionally, the interactions between the dissolved organic carbon-rich (DOC-rich) treated water and a soil contaminated with Cr(III) was further studied. The breakthrough curves obtained from column (dynamic) adsorption experiments showed higher adsorption efficiency of grape waste compared to brewers draff. The adsorption efficiency was 36.8-40.4% for brewers draff and 56.6-68.3% for grape waste, depending on the initial pH. The detected saturation time was approximately three times higher than in our previous study, where a model solution of Cr(VI) was used. The natural groundwater showed to be rich in dissolved organic matter after the treatment. The consequent interaction of the treated water with the soil led to a partial dissolution of Cr from the contaminated soil (corresponding to < 1% of total soil Cr) in the case of brewers draff, but also to adsorption of the residual Cr from the treated water to the soil in the case of grape waste. The obtained data demonstrated that Cr(III), when abundant in soils, could be potentially mobilized by the DOC-rich solution. On the other hand, the risk associated with this secondary Cr mobilization and its subsequent migration in soils (or sediments) seems to be very low or even negligible.

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“…The adsorption mixtures in conical fl asks were placed in an incubation shaker and the agitation speed was set at 180 rpm. The sampling was carried out at specifi ed times (5,10,15,20,25,30,40, 50 and 60 min) and the adsorption mixtures were collected and centrifuged. The supernatant was analyzed by using AAS.…”

Section: Adsorption Studies On Kinetics and Mechanismmentioning

confidence: 99%

Adsorption kinetic, equilibrium and thermodynamic investigations of Zn(II) and Ni(II) ions removal by poly(azomethinethioamide) resin with pendent chlorobenzylidine ring

Kumar¹,

Ethiraj²,

Venkat³

et al. 2015

Polish Journal of Chemical Technology

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This paper reports the application of poly(azomethinethioamide) (PATA) resin having the pendent chlorobenzylidine ring for the removal of heavy metal ions such as Zn(II) and Ni(II) ions from the aqueous solutions by adsorption technology. Kinetic, equilibrium and thermodynamic models for Zn(II) and Ni(II) ions adsorption were applied by considering the effect of contact time, initial metal ion concentration and temperature data, respectively. The adsorption infl uencing parameters for the maximum removal of metal ions were optimized. Adsorption kinetic results followed the pseudo-second order kinetic model based on the correlation coeffi cient (R 2 ) values and closed approach of experimental and calculated equilibrium adsorption capacity values. The removal mechanism of metal ions by PATA was explained with the Boyd kinetic model, Weber and Morris intraparticle diffusion model and Shrinking Core Model (SCM). Adsorption equilibrium results followed the Freundlich model based on the R 2 values and error functions. The maximum monolayer adsorption capacity of PATA for Zn(II) and Ni(II) ions removal were found to be 105.4 mg/g and 97.3 mg/g, respectively. Thermodynamic study showed the adsorption process was feasible, spontaneous, and exothermic in nature.

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Biosorption of Cu(II) and Zn(II) onto a lignocellulosic substrate extracted from wheat bran

Cited by 50 publications

References 10 publications

Arsenic adsorption on lignocellulosic substrate loaded with ferric ion

Arsenic adsorption on lignocellulosic substrate loaded with ferric ion

Biosorption of Cr(VI) from natural groundwater and the effect of DOC-rich treated water on Cr dissolving from contaminated soil

Adsorption kinetic, equilibrium and thermodynamic investigations of Zn(II) and Ni(II) ions removal by poly(azomethinethioamide) resin with pendent chlorobenzylidine ring

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