Cd2+and Zn2+sorption on apatite in the presence of EDTA and humic substance

Viipsi, Karin; Sjöberg, Staffan; Tõnsuaadu, Kaia; Shchukarev, Andrey

doi:10.1051/e3sconf/20130101008

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…Hence the presence of other cations have negligible or no effect on the toxic metal removal using metal-sulfide nanomaterials [69]. In other study, the elimination of Cd 2+ by MnO 2 loaded D301 showed no significant effect in presence of several cations (Na + , K + and Ca 2+ , or Mg +2 ) and anions ( Cl − , NO 3-, SO4 2− and PO 4 presence of EDTA on the sorption of Cd 2+ and Zn 2+ by apatite showed a decrease in the uptake of Cd 2+ and Zn 2+ due to the formation of [CdEDTA] 2and [ZnEDTA] 2complexes [71].…”

Section: Effect Of Co-existing Ionsmentioning

confidence: 96%

Novel and highly efficient functionalized bentonite for elimination of Cu2+ and Cd2+ from aqueous wastes

Malsawmdawngzela

Lalhmunsiama

Tiwari

2021

Environmental Engineering Research

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The aim of this study was to synthesize novel and highly efficient functionalized material (BNMPTS) for selective elimination of Cu2+ and Cd2+ from aqueous waste. The detailed insights of solid/solution interactions were investigated by X-Ray photoelectron spectroscopic analyses. The grafting of silane caused for significant decrease in specific surface area of bentonite from 41.14 to 4.65 m2/g. The functionalized material possessed significantly high sorption capacity (12.59 mg/g for Cu2+ and 13.19 mg/g for Cd2+) and selectivity for these cations. The material showed very high elimination efficiency at a wide range of pH ~2.0 to 7.0 for Cu2+, ~3.0 to 10.0 for Cd2+ and concentration (1.0 to 25.0 mg/L) for Cu2+ and Cd2+. A rapid uptake of these two cations achieved an apparent equilibrium within 60 minutes of contact. The increased level of background electrolyte concentrations (0.0001 to 0.1 mol/L) did not affect the elimination efficiency of these two cations by BNMPTS. Moreover, the common coexisting ions did not inhibit the removal of these toxic ions. Furthermore, high breakthrough volumes i.e., 1.4 and 3.69 L for Cu2+, 2.6 and 6.64 L for Cd2+ was obtained using 0.25 and 0.50 g of BNMPTS respectively in a fixed-bed column operations.

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Section: Effect Of Co-existing Ionsmentioning

confidence: 96%