Competitive sorption behavior of mono, di, and trivalent ions in highly acidic waste by polymeric resin based on crotonic acid prepared by gamma radiation

Hamed, Maher M.; El-khalafawy, A.; Youssef, Maha A.; Borai, Ε. H.

doi:10.1016/j.radphyschem.2023.111159

Cited by 4 publications

(6 citation statements)

References 28 publications

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“…The strong adverse impact of competing ions might be caused by the stereochemical component or by competitiveness between these ions’ electrostatic interactions with the lanthanides under study . It may also be attributed to the smallest ionic radius of Na (1.02 Å), Mg (0.72 Å), and Ca (0.52 Å) than the ionic radius of Eu (1.12 Å), Ce (1.22 Å), and La (1.25 Å) .…”

Section: Effect Of Competing Ionsmentioning

confidence: 99%

Selective Separation of Europium from Lanthanum, Cerium, and Iron Using Porous and Functionalized Polymer

Youssef,

Borai,

El-khalafawy

et al. 2024

Ind. Eng. Chem. Res.

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Europium (Eu) ion is one of the most important and valuable lanthanide elements for nuclear and industrial applications. In this respect, the present study was oriented to prepare a new selective porous polymer using an efficient method for controlled synthesis of block copolymers and polymeric porous particles. Reversible-addition−fragmentation chain transfer (RAFT) emulsion polymerization was performed using poly(styrene-crotonic acid-methacrylic acid) PS(CA-MAA) and trithiocarbonate as a surfactant. The new polymer PS(CA-MAA) was prepared by grafting the polymerization of polystyrene with reactive monomers using γ-rays. The new polymer was investigated for the separation of Eu(III) from light REEs (LREEs) such as La(III), Ce(III), and some impurities such as Fe(III). Different characterizations of the prepared polymer were carried out. Batch experiments were conducted to determine the effects of pH, contact time, and concentration on the sorption and separation of Eu(III) from other light lanthanides and Fe(III). The obtained results revealed that the prepared polymer is more highly selective for Eu(III) than the other LREEs. Lanthanide sorption processes were well fitted to the monolayer sorption isotherm model, with the maximum sorption capacities of 2.51, 7.75, and 45.45 mg g −1 for La(III), Ce(III), and Eu(III), respectively. Pseudo-second-order kinetic models obey the experimental data, suggesting a chemical sorption reaction via a strong complex formation on the surface of PS(CA-MAA). According to the separation factor, separation of Eu from other investigated lanthanides was successively performed and took the order SF(Eu/La)> SF(Eu/Ce), which encouraged further utilization of the prepared polymer for the column chromatographic separation process.

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Section: Effect Of Competing Ionsmentioning

confidence: 99%

Selective Separation of Europium from Lanthanum, Cerium, and Iron Using Porous and Functionalized Polymer

Youssef,

Borai,

El-khalafawy

et al. 2024

Ind. Eng. Chem. Res.

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“…The schemes in Figure 2 show the main operations that lead to obtaining thorium from monazite through acid ( Figure 2 a) or the basic attack ( Figure 2 b) of impurities; however, in principle, any mineral is considered as a source of thorium, with the series of technological operations being the same [ 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 ].…”

Section: Classical Technologymentioning

confidence: 99%

“…The analysis of the processes in which the minerals or waste containing thorium are processed shows that the classic technologies have material losses in the environment, which could be reduced with or through membrane techniques [ 232 , 233 , 234 , 235 , 236 , 237 , 238 , 239 , 240 , 241 , 242 , 243 , 244 , 245 , 246 , 247 , 248 , 249 , 250 , 251 , 252 , 253 , 254 , 255 ]. Thus, in the classical thorium recovery technologies, some disadvantages [ 1 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65…”

Section: Problems In Application and Achievement As Well As Developme...mentioning

confidence: 99%

“…The analysis of the processes in which the minerals or waste containing thorium are processed shows that the classic technologies have material losses in the environment, which could be reduced with or through membrane techniques . Thus, in the classical thorium recovery technologies, some disadvantages [1,[13][14][15][16][17][18][19][20][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65][66] of the operations are highlighted (Table 5), which require improvements, especially from the perspective of the loss of thorium in the environment. The problem of thorium separation, concentration and recycling can be approached by analyzing some of the contributions that offer both priority research directions and viable technical solutions (Table 6) .…”

Section: Problems In Application and Achievement As Well As Developme...mentioning

confidence: 99%

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Thorium Removal, Recovery and Recycling: A Membrane Challenge for Urban Mining

Man,

Albu,

Nechifor

et al. 2023

Membranes

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Although only a slightly radioactive element, thorium is considered extremely toxic because its various species, which reach the environment, can constitute an important problem for the health of the population. The present paper aims to expand the possibilities of using membrane processes in the removal, recovery and recycling of thorium from industrial residues reaching municipal waste-processing platforms. The paper includes a short introduction on the interest shown in this element, a weak radioactive metal, followed by highlighting some common (domestic) uses. In a distinct but concise section, the bio-medical impact of thorium is presented. The classic technologies for obtaining thorium are concentrated in a single schema, and the speciation of thorium is presented with an emphasis on the formation of hydroxo-complexes and complexes with common organic reagents. The determination of thorium is highlighted on the basis of its radioactivity, but especially through methods that call for extraction followed by an established electrochemical, spectral or chromatographic method. Membrane processes are presented based on the electrochemical potential difference, including barro-membrane processes, electrodialysis, liquid membranes and hybrid processes. A separate sub-chapter is devoted to proposals and recommendations for the use of membranes in order to achieve some progress in urban mining for the valorization of thorium.

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“…These ion exchangers can be produced from synthetic or natural resins. Synthetic ion exchangers based on petroleum products (e.g., DVB styrene) [33] and polymers [34] are widely used, but due to their high costs and the increasing social demand for sustainability, ion exchangers based on natural resins have attracted increasing attention [35] as inexpensive and high-quality alternatives.…”

Section: Introductionmentioning

confidence: 99%

Sequestration of Toxic Metal Ions from Industrial Effluent Using the Novel Chelating Resin Tamarind Triazine Amino Propanoic Acid (TTAPA)

Mandal

Abomuti

Al‐Harbi

et al. 2023

Water

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Due to higher levels of industrial activity, the concentrations of toxic substances in natural water bodies are increasing. One of the most dangerous groups of toxic compounds is heavy metals, with even trace amounts of most heavy metals being harmful to aquatic life. This is why purifying water has become an urgent priority. In this context, ion-exchange resins have become more widely used in water treatment processes. However, to reduce the costs and improve the sustainability of this strategy, natural resins are favored over synthetic versions. Therefore, in the present study, a natural tamarind-based chelating resin was developed. The tamarind triazine amino propanoic acid (TTAPA) resin was synthesized and characterized using Fourier-transform infrared spectroscopy, thermogravimetry analysis, scanning electron microscopy, elemental analysis, and physicochemical analysis of the moisture content, total ion-exchange capacity, bulk volume, bulk density, and percentage nitrogen content. The biological oxygen demand and chemical oxygen demand of the industrial effluent before and after treatment were also analyzed. The batch analysis was used to determine the distribution coefficient and percentage removal of the metal ions Fe(II), Zn(II), Pb(II), Cu(II), and Cd(II). The removal efficiency of the prepared TTAPA resin was highest for Fe(II), followed by Cu(II), Zn(II), Pb(II), and Cd(II) in order. The chelating ion-exchange resin also had a metal ion recovery of more than 95%, thus demonstrating great promise for the sequestration of heavy metal ions from industrial wastewater. The proposed TTAPA resin is biodegradable, non-toxic, cost-effective, reproducible, and eco-friendly.

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Competitive sorption behavior of mono, di, and trivalent ions in highly acidic waste by polymeric resin based on crotonic acid prepared by gamma radiation

Cited by 4 publications

References 28 publications

Selective Separation of Europium from Lanthanum, Cerium, and Iron Using Porous and Functionalized Polymer

Selective Separation of Europium from Lanthanum, Cerium, and Iron Using Porous and Functionalized Polymer

Thorium Removal, Recovery and Recycling: A Membrane Challenge for Urban Mining

Sequestration of Toxic Metal Ions from Industrial Effluent Using the Novel Chelating Resin Tamarind Triazine Amino Propanoic Acid (TTAPA)

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