Anion exchange separation of antimony and the integrated ion exchange process for decontamination of used zircaloy pressure tubes from Indian pressurized heavy water reactors

s, Remya Devi P; Joshi, Shreeram; Lali, Arvind; Gantayet, L.M.; Verma, Rakesh Kumar

doi:10.1080/01496395.2019.1626423

Cited by 4 publications

(1 citation statement)

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“…Ion exchange [ 3 ], coagulation (coprecipitation) [ 4 ], reverse osmosis [ 5 ], bioremediation [ 6 ], and adsorption [ 7 ] are currently accessible technologies for Sb(III) removal from water. Adsorption is a common approach for removing Sb(III) from drinking water due to its economic and technological advantages.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Sb(III) from Aqueous Solution by nZVI/AC: A Magnetic Fixed-Bed Column Study

et al. 2021

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The effectiveness of nanoscale zero-valent iron(nZVI) immobilized on activated carbon (nZVI/AC) in removing antimonite (Sb(III)) from simulated contaminated water was investigated with and without a magnetic fix-bed column reactor. The experiments were all conducted in fixed-bed columns. A weak magnetic field (WMF) was proposed to increase the exclusion of paramagnetic Sb(III) ions by nZVI/AC. The Sb(III) adsorption to the nZVI and AC surfaces, as well as the transformation of Sb(III) to Sb(V) by them, were both increased by using a WMF in nZVI/AC. The increased sequestration of Sb(III) by nZVI/AC in the presence of WMF was followed by faster nZVI corrosion and dissolution. Experiments were conducted as a function of the pH of the feed solution (pH 5.0–9.0), liquid flow rate (5–15 mL·min−1), starting Sb(III) concentration (0.5–1.5 mg·L−1), bed height nZVI/AC (10–40 cm), and starting Sb(III) concentration (0.5–1.5 mg·L−1). By analyzing the breakthrough curves generated by different flow rates, different pH values, different inlet Sb(III) concentrations, and different bed heights, the adsorbed amounts, equilibrium nZVI uptakes, and total Sb(III) removal percentage were calculated in relation to effluent volumes. At pH 5.0, the longest nZVI breakthrough time and maximal Sb(III) adsorption were achieved. The findings revealed that the column performed effectively at the lowest flow rate. With increasing bed height, column bed capacity and exhaustion time increased as well. Increasing the Sb(III) initial concentration from 0.5 to 1.5 mg·L−1 resulted in the rise of adsorption bed capacity from 3.45 to 6.33 mg·g−1.

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Section: Introductionmentioning

confidence: 99%

Adsorption of Sb(III) from Aqueous Solution by nZVI/AC: A Magnetic Fixed-Bed Column Study

et al. 2021

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Effective removal of Sb(V) from aqueous solutions by electrocoagulation with composite scrap iron-manganese as an anode

Zhou

Zheng

Zhang

et al. 2022

Environ Sci Pollut Res

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Speciation of trace amounts of Sb(iii) and Sb(v) in environmental water using inductively coupled plasma mass spectrometry after magnetic solid-phase extraction with rGO/Fe₃O₄

Wang,

Nie,

et al. 2023

Anal. Methods

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Anion exchange separation of antimony and the integrated ion exchange process for decontamination of used zircaloy pressure tubes from Indian pressurized heavy water reactors

Cited by 4 publications

References 15 publications

Adsorption of Sb(III) from Aqueous Solution by nZVI/AC: A Magnetic Fixed-Bed Column Study

Adsorption of Sb(III) from Aqueous Solution by nZVI/AC: A Magnetic Fixed-Bed Column Study

Effective removal of Sb(V) from aqueous solutions by electrocoagulation with composite scrap iron-manganese as an anode

Speciation of trace amounts of Sb(iii) and Sb(v) in environmental water using inductively coupled plasma mass spectrometry after magnetic solid-phase extraction with rGO/Fe₃O₄

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Anion exchange separation of antimony and the integrated ion exchange process for decontamination of used zircaloy pressure tubes from Indian pressurized heavy water reactors

Cited by 4 publications

References 15 publications

Adsorption of Sb(III) from Aqueous Solution by nZVI/AC: A Magnetic Fixed-Bed Column Study

Adsorption of Sb(III) from Aqueous Solution by nZVI/AC: A Magnetic Fixed-Bed Column Study

Effective removal of Sb(V) from aqueous solutions by electrocoagulation with composite scrap iron-manganese as an anode

Speciation of trace amounts of Sb(iii) and Sb(v) in environmental water using inductively coupled plasma mass spectrometry after magnetic solid-phase extraction with rGO/Fe3O4

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Product

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Speciation of trace amounts of Sb(iii) and Sb(v) in environmental water using inductively coupled plasma mass spectrometry after magnetic solid-phase extraction with rGO/Fe₃O₄