Uranium removal from nitric acid raffinate solution by solvent immobilized PVC cement

Hussein, A. E. M.; Taha, Mohamed

doi:10.1007/s10967-012-2158-3

Cited by 17 publications

(5 citation statements)

References 28 publications

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“…The explored data shows that uranium possesses cationic species (mainly UO 2 (NO 3 ) + and UO 2 2+ ) at pH up to 4.0, while uranium exhibits neutral species (mainly UO 2 (OH) 2 .H 2 O (S) ) at a pH range of 4.0–12.0, and finally, the negative uranium species is explored mainly at pH ≥ 12.0. The same species have been reported previously in other works (Hussein and Taha 2013 ; Khawassek et al 2018 ; Younes et al 2018 ; Hassanein et al 2021 ).…”

Section: Resultssupporting

confidence: 87%

“…Figure S1 displays the speciation of uranium metal ion (100 mg L −1 ) as a function of solution pH using Medusa/hydra software (Hussein and Taha 2013 ). The explored data shows that uranium possesses cationic species (mainly UO 2 (NO 3 ) + and UO 2 2+ ) at pH up to 4.0, while uranium exhibits neutral species (mainly UO 2 (OH) 2 .H 2 O (S) ) at a pH range of 4.0–12.0, and finally, the negative uranium species is explored mainly at pH ≥ 12.0.…”

Section: Resultsmentioning

confidence: 99%

“…Intraparticular diffusion model (IPD) which also known as Weber–Morris kinetic model was applied to investigate the impact of resistance to intra-particle diffusion, and provide a more comprehensive description for the sorption mechanism (Hussein and Taha 2013 ; Ahmed et al 2020 ). The linear form of the Morris − Weber model is displayed in Table S1 , while the model parameters, namely C and ki, were evaluated and shown in Table S2.…”

Section: Resultsmentioning

confidence: 99%

“…The maximum uranium contamination limit had reported by the U.S. Environmental Protection Agency to be 15 pCi L −1 (Al Nuaimi and Williams 2022 ). Uranium mining and milling, radioactive industries, and waste disposal are examples of human activities that contaminated the aqueous environment with uranium (Hussein and Taha 2013 ; Al Nuaimi and Williams 2022 ).…”

Section: Introductionmentioning

confidence: 99%

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Active carbon-based waste packaging materials for uranium sorption from aqueous solution

El-Zoghby

Fahmy

Taha

et al. 2023

Environ Sci Pollut Res

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Waste (packaging plastic and industrial water) accumulation is one of the great global challenges over the world. Combining waste recycling science and water treatment knowledge are fascinating as applied sciences add value to the safe disposal of waste plastic packaging materials and wastewater. Active carbons (ACs) are prepared from polyethylene terephthalate (PET) at two pyrolysis temperatures (i.e. 450 and 500 °C) and compressed in well-defined designed molds to form cylinder shapes as applied in industry. Particle size (817 and 1074 nm), zeta potential (− 7.17 and − 25.6 mV), surface area (544 and 632 m2/g), and topography of prepared ACs were investigated and discussed. Zeta potential exhibited nice dispersion in accordance to charge value and surficial SEM images prove space hole filling with adsorbed materials after treatment. The prepared activated carbon sorbents have been applied for the removal of radioactive elements from wastewater. The displayed data declare that both sorbents have the same sorption performance, whereas the uranium sorption process using both sorbents is obeyed to pseudo-second-order kinetic model and Langmuir isotherm model. Nevertheless, it is worth noting that the prepared AC at a pyrolysis temperature of 500 °C exhibits higher sorption capacity (38.9 mg g−1) than that prepared at lower temperature, i.e., 450 °C (36.2 mg g−1) which indicates that the increase in pyrolysis temperature improves the sorption characteristics of the yield-activated carbon.

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Section: Resultssupporting

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Active carbon-based waste packaging materials for uranium sorption from aqueous solution

El-Zoghby

Fahmy

Taha

et al. 2023

Environ Sci Pollut Res

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“…The coefficient of correlation (R 2 ) has been applied for testing the fitting of the obtained data to the isotherm equations. The linear form of Freundlich and Langmuir isotherm models have commonly expressed equations 1 and 2, respectively (Hussein and Taha 2013):…”

Section: The Sorption Isothermmentioning

confidence: 99%

New organic compounds detection and potential removal in crude phosphoric acid using waste sludge

Ibrahim

Masoud

Taha

et al. 2021

International Journal of Environmental Analytical Chemistry

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Some organic compounds in phosphoric acid are a potential mediator of adverse environmental impacts on soil. This work aims to detect and reduce the content of organic compounds in crude phosphoric acid using waste sludge, from water treatment plants, as a low-cost sorbent. Gas chromatography/Mass spectrometry (GC/MS) was used to detect the organic species in crude phosphoric acid, while X-ray fluorescence (XRF), X-ray Diffraction (XRD), and Attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy were used to characterize waste sludges. Practically, three sludge samples were utilized and different factors including shaking time, sorbent dose, and phosphoric acid concentration were studied.The results of GC/MS revealed that crude phosphoric acid contains bis [tert-butyl(dimethyl)silyl] azelaate, dibutyl phthalate, and 2,6-di-tert-butyl-4-methylphenol as the main organic species. Moreover, the clay content and the surface charge of sludge strongly affect the removal efficiency of organic species. Kinetic analysis using Lagregran pseudo-first-order, pseudo-second-order, Morris-Weber, and Elvoich models display that the sorption process using waste sludges is a chemisorption process. Finally, the three sludge samples exhibit potential sorbents for the clarification of phosphoric acid and sequentially to produce green phosphate fertilizers.

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Biosorption of strontium from aqueous solutions onto spent coffee grounds

Imessaoudene

Hanini

Bouzidi

2013

J Radioanal Nucl Chem

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Uranium removal from nitric acid raffinate solution by solvent immobilized PVC cement

Cited by 17 publications

References 28 publications

Active carbon-based waste packaging materials for uranium sorption from aqueous solution

Active carbon-based waste packaging materials for uranium sorption from aqueous solution

New organic compounds detection and potential removal in crude phosphoric acid using waste sludge

Biosorption of strontium from aqueous solutions onto spent coffee grounds

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