Removal of arsenic(V) from aqueous wastes by ion exchange with Lewatit MP64 resin

Escudero, E.

doi:10.5004/dwt.2018.22676

Cited by 6 publications

(5 citation statements)

References 18 publications

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“…The affinity of arsenic for molybdate was used for recovering the metalloid on molybdate-impregnated chitosan beads (Dambies et al, 2002). Ion-exchange resins (Jose Alguacil and Escudero, 2018) and impregnated resins (Ciopec et al, 2014) have also been carried out for the treatment of As-containing solutions. Biosorbents opened also promising perspectives for As(III) and As (V) sorption; agriculture wastes can be used as produced or chemically modified (Shakoor et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

As(V) sorption from aqueous solutions using quaternized algal/polyethyleneimine composite beads

Hamza

Salih

et al. 2020

Science of The Total Environment

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Section: Introductionmentioning

confidence: 99%

As(V) sorption from aqueous solutions using quaternized algal/polyethyleneimine composite beads

Hamza

Salih

et al. 2020

Science of The Total Environment

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“…Similarly to arsenic(III), arsenic(V) presented different speciation at the various pH values of the aqueous solution. This speciation is shown in Figure 2 [32], which demonstrates the sequence of neutral to anionic arsenic(V) species as the pH of the solution increased. Thus, the bioadsorption of this element presumably will be dependent, among other variables, on this speciation, and thus, of the pH of the aqueous phase.…”

Section: Arsenic(v)mentioning

confidence: 94%

Arsenic and Biosorption

Robla¹

2023

Arsenic in the Environment - Sources, Impacts and Remedies

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Arsenic, either in (III) or (V) oxidation states forms, is a hazardous elements to humans, thus its removal from aqueous environments is of the utmost priority in the countries where this problem arises. From the various separation technologies, the removal f arsenic via biosorption processing attracted an interest, because besides the removal of the element, allows the recycle materials that in many cases are considered as wastes. The present chapter reviewed the most recent proposals (2022 year) about the use of biosorbents in the removal of this toxic element. Arsenic, either in (III) or (V) oxidation states forms, is a hazardous elements to humans, thus its removal from aqueous environments is of the utmost priority in the countries where this problem arises. From the various separation technologies, the removal f arsenic via biosorption processing attracted an interest, because besides the removal of the element, allows the recycle materials that in many cases are considered as wastes. The present chapter reviewed the most recent proposals (2022 year) about the use of biosorbents in the removal of this toxic element.

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“…The effect of the ionic strength was investigated by adding different amounts of lithium chloride to the solutions of Cr(VI) of concentration 10 mg/L and 1 mg of the activated carbon. Finally, the adsorption equilibrium isotherms were analyzed varying the activated carbon amount between 0.5 and 100 mg using the Type-I Langmuir [16,17] (Equation (2)), Type-II Langmuir [18,19] (Equation 3), Freundlich [20,21] (Equation (4)), and Temkin [22,23] (Equation (5)) linear forms using Origin Pro v.2019 software:…”

Section: Adsorption Experimentsmentioning

confidence: 99%

New Bioadsorbent Derived from Winemaking Waste Cluster Stalks: Application to the Removal of Toxic Cr(VI) from Liquid Effluents

Alcaraz¹,

López²

2020

Applied Sciences

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A winemaking waste was used as a precursor of activated carbon used for the removal of hazardous Cr(VI) from solutions. The preparation process consisted of a hydrothermal process and a chemical activation of the resulting product, with KOH. The adsorption results show that the adsorption of Cr(VI) on the obtained activated carbon is strongly dependent on the stirring speed applied to the carbon/solution mixture, pH of the solution, and temperature. The equilibrium isotherm was well fitted to the Langmuir Type-II equation, whereas the kinetic can be described by the pseudo-second-order kinetic model. Thermodynamic studies revealed that Cr(VI) adsorption was an exothermic and spontaneous process. Finally, desorption experiments showed that Cr(VI) was effectively desorbed using hydrazine sulfate solutions, and, at the same time, the element was reduced to the less hazardous Cr(III) oxidation state.

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Removal of arsenic(V) from aqueous wastes by ion exchange with Lewatit MP64 resin

Cited by 6 publications

References 18 publications

As(V) sorption from aqueous solutions using quaternized algal/polyethyleneimine composite beads

As(V) sorption from aqueous solutions using quaternized algal/polyethyleneimine composite beads

Arsenic and Biosorption

New Bioadsorbent Derived from Winemaking Waste Cluster Stalks: Application to the Removal of Toxic Cr(VI) from Liquid Effluents

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