Adsorption of Uranium from Aqueous Solutions by Expanded Perlite

Hussein, A. E. M.; Youssef, W. M.; El-Sheikh, A. S.

doi:10.1134/s1066362219050114

Cited by 14 publications

(5 citation statements)

References 21 publications

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“…In the case of Cu (II) and Hg (II) (Ghassabzadeh et al 2010) the values of n were lower. In the case of Hussein (Hussein et al 2019) the value of n was higher for U(VI) on perlite than that determined in this work. These differences may be due to variations in the composition and/or structure of the material since it is a naturally occurring mineral.…”

Section: Variation Of Uo 2 2+ Concentration -Adsorption Isothermscontrasting

confidence: 71%

“…We also studied, in a previous work (Cabranes et al 2018), the capacity of perlite to remove cesium ion; the material was characterized and the effects of different variables on removal e ciency were investigated. Very recently, Hussein et al (2019) studied the removal of uranium from radioactive liquid wastes using expanded perlite (EP) from Egyptian origin. Their promising results on the use of unmodi ed perlite for removal of uranyl ions encourages further research to be made, to allow more comprehensive conclusions on the characteristics and potential of this natural, low-cost material from different geographical origins.…”

Section: Introductionmentioning

confidence: 99%

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Application of a low-cost material for uranium removal: experimental variables and study of concomitants

Cabranes¹,

Martín²,

Leyva³

et al. 2023

Preprint

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In the present work, the extent in which the presence of concomitant ions affects the removal capacity of uranyl ion by the natural mineral perlite was studied. By using synthetic solutions of uranyl nitrate in batch systems, the variables affecting the process, namely sorbent dose, contact time, pH and initial UO22+ concentration, were firstly investigated. The zeta potential and the sorption capacity of perlite, as well as relevant kinetics and thermodynamic parameters were measured. Removals up to 90 % were achieved for a dose of 45 g of Pava L-1 and a concentration of U of 100 µg U L-1, of 74 % when the concentration was 1 mg U L-1, 60 % for 10 mg U L-1 and 25 % for a concentration of 50 mg U L-1. The best linear correlations in the adsorption isotherms were achieved by applying the Langmuir and Dubinin-Radushkevich models with adsorption energy of 8.72 kJ mol-1. The thermodynamic variables indicated the feasible, spontaneous and exothermic nature of the sorption of UO22+ by perlite. The influence of concomitant ions, in decreasing order, was: Cs+ > Ba2+ > Mg2+ > K+ ~ Na+ > NH4+ > Ca2 +. The results of these investigations will allow determining the best treatment, weather the solution is an effluent from a nuclear plant or in case of environmental contamination.

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Section: Variation Of Uo 2 2+ Concentration -Adsorption Isothermscontrasting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Application of a low-cost material for uranium removal: experimental variables and study of concomitants

Cabranes¹,

Martín²,

Leyva³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…7a , the pH value in the range of 1.0–5.0, the adsorption % of the three Cs- bis -aldehyde Schiff bases derivatives on U(VI) increases with the increase of solution pH value. Because H + ions (from the acidic solution) compete with the Cs- bis -aldehydes adsorption sites at low pH levels, hence, U(VI) adsorption reduces (Choppin 2006 ; Khani et al 2006 ; Khawassek et al 2018 ; Hussein et al 2019 ; Orabi et al 2021 ). In addition, increasing acid concentration (very low pH) leads to enhancing the salt effect and consequently, the adsorption process is encountered with some restrictions.…”

Section: Resultsmentioning

confidence: 99%

“…The increased absorption of U(VI) may be attributed to a decrease in the protonation of the adsorbents’ surfaces at higher pH levels. In addition, free cationic species of uranium (UO 2 2+ , (UO 2 )(OH) 2 2+ , UO 2 OH + , and (UO 2 ) 3 (OH) 5 + ) predominate in this region and enhance the metal ions to be extracted (Choppin 2006 ; Khani et al 2006 ; Khawassek et al 2018 ; Hussein et al 2019 ; Orabi et al 2021 ). In order to better study the adsorption performance of CBASB derivatives of U(VI), the pH value of the experimental system was set at 3 in the follow-up study in this paper.…”

Section: Resultsmentioning

confidence: 99%

“…, UO 2 OH + , and (UO 2 ) 3 (OH) 5 + ) predominate in this region and enhance the metal ions to be extracted (Choppin 2006;Khani et al 2006;Khawassek et al 2018;Hussein et al 2019;Orabi et al 2021). In order to better study the adsorption performance of CBASB derivatives of U(VI), the pH value of the experimental system was set at 3 in the follow-up study in this paper.…”

Section: +mentioning

confidence: 99%

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An effective uranium removal using diversified synthesized cross-linked chitosan bis-aldehyde Schiff base derivatives from aqueous solutions

Hamed

Orabi

Salem

et al. 2022

Environ Sci Pollut Res

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Three new cross-linked chitosan derivatives were yielded through intensification of chitosan with diverse types of bis-aldehydes. The prepared cross-linked chitosan was characterized by FTIR, 1H NMR, XRD, and TGA techniques. TGA indicated an improvement in thermal stability of the cross-linked chitosan compared with pure chitosan. Batch adsorption experiments showed that the three novel cross-linked chitosan bis-aldehyde derivatives possessed good adsorption capacity against U(VI) in the order of BFPA > BFB > BODB (adsorption capacity of the three adsorbents for U(VI) reaches 142, 124, and 114 mg/g respectively) and the adsorption isotherm and kinetic were well described by the Langmuir and the pseudo-second-order kinetic model, respectively. In addition, the prepared cross-linked chitosan bis-aldehyde derivatives were examined as U(VI) catcher from waste solutions. Graphical Abstract

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Uranium removal using composite membranes incorporated with chitosan grafted phenylenediamine from liquid waste solution

et al. 2021

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Adsorption of Uranium from Aqueous Solutions by Expanded Perlite

Cited by 14 publications

References 21 publications

Application of a low-cost material for uranium removal: experimental variables and study of concomitants

Application of a low-cost material for uranium removal: experimental variables and study of concomitants

An effective uranium removal using diversified synthesized cross-linked chitosan bis-aldehyde Schiff base derivatives from aqueous solutions

Uranium removal using composite membranes incorporated with chitosan grafted phenylenediamine from liquid waste solution

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