Mercury biosorption from aqueous solutions by Sugarcane Bagasse

Khoramzadeh, Elham; Nasernejad, Bahram; Halladj, Rouein

doi:10.1016/j.jtice.2012.09.004

Cited by 140 publications

(46 citation statements)

References 20 publications

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“…This data could greatly increase the convenience in practical application. Similar behavior has been reported previously (Doskočil and Pekař 2012;Khoramzadeh et al 2013). Because temperature had a negligible effect on adsorption, subsequent experiments were performed at ambient temperature (25 °C).…”

Section: Effect Of Temperaturesupporting

confidence: 77%

Enhanced Adsorption of Mercury(II) and Cadmium(II) from Aqueous Solution onto Rice Bran Modified with Chelating Ligands

Zhang

Luo

2016

BioResources

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aTo enhance the removal of mercury (Hg(II)) and cadmium (Cd(II)) from aqueous solutions, rice bran (RB) was reacted with epichlorohydrin and then modified with ethylenediamine and sodium chloroacetate to bear iminodiacetate functional groups. The modified rice bran (MRB) was characterized by Fourier transform-infrared spectroscopy (FT-IR), thermogravimetric analysis (TG), energy dispersive spectroscopy (EDS), back titration, and X-ray photoelectron spectroscopy (XPS). The adsorption properties of MRB for Hg(II)/Cd(II) ions were also evaluated in batch experiments. The sorption kinetic experimental data were best described by the pseudo-second-order model. The maximum adsorption capacity (163.9 mg/g for Hg(II) at pH 5.0 and 106.4 mg/g for Cd(II) at pH 6.0) was observed at 298 K, and the isotherm adsorption equilibrium of MRB was followed by Langmuir isotherm equation. The major adsorption mechanisms should be predominantly controlled by the formation of complexes between the functional groups of MRB and Hg(II)/Cd(II) ions as well as ion-exchange. The regeneration experiments showed that the MRB could be successfully reused for six cycles when 0.1 M HCl eluent was used.

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Section: Effect Of Temperaturesupporting

confidence: 77%

Enhanced Adsorption of Mercury(II) and Cadmium(II) from Aqueous Solution onto Rice Bran Modified with Chelating Ligands

Zhang

Luo

2016

BioResources

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“…For this reason, in this study initial pH 5.0 was chosen as optimum pH for Pb 2+ adsorption [31]. The low adsorption capacity of Pb 2+ on the CS at low pH value of solution is obviously due to the presence of the high concentration of available H + ions which compete with Pb 2+ ions for the sorption sites on the CS [32]. With the increase of pH value, the proton competition decreases leading to enhance adsorption of Pb 2+ on CS.…”

Section: The Effect Of Operating Parametersmentioning

confidence: 99%

Removal of Pb2+ ions by raw corn silk (Zea mays L.) as a novel biosorbent

Petrović

Šoštarić

Stojanović

et al. 2016

Journal of the Taiwan Institute of Chemical Engineers

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“…However due to their high generation costs, researchers shifted their focus to the use of dead biomass and waste such as peanut shell [48], garden grass [49], ground coffee [50], saw dust [51][52], sunflower leaves [53], egg shells [54], almond shell [55] sugarcane bagasse [56], Anabaena sphaerica [57], Bacillus laterosporus [58], green algae [59], orange peel [60], pine cone [61], guava leaf [62] for the removal of dyes, metals and organic pollutants from wastewater. Agricultural waste as adsorbents presents us with an attractive option due to their low cost and high abundance.…”

Section: Introductionmentioning

confidence: 99%