Europium, strontium and cesium migration from the composite of poly(methyl acrylate) gypsum prepared by gamma irradiation

Mrad, O.; Alhassanieh, O.; Ajji, Z.

doi:10.1007/s10967-014-3847-x

Cited by 4 publications

(3 citation statements)

References 19 publications

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“…As shown in Fig. (b), the Ca 2p3/2 peaks, which are assigned to Ca 10 (PO 4 ) 6 (OH) 2 , CaSO 4 ∙2H 2 O 49 and CaSO 4 , display broad Ca 2p3/2 lines located at 346.80 eV, 347.67 eV and 348.14 eV, respectively. The peak of Ca 2p1/2 at 351.37 eV is identified as CaSO 4 and CaSO 4 ∙2H 2 O …”

Section: Resultsmentioning

confidence: 99%

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Enhanced adsorption capacity for phosphate in wastewater from thermally activated flue gas desulfurization gypsum

Cheng

Chen

Zou

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND In this study, a flue gas desulfurization (FGD) gypsum was calcined as phosphate sorbent materials for the remediation of phosphate wastewater. RESULTS In addition to the main crystalline phase of gypsum, FGD gypsum contains a small quantity of quartz, dolomite, calcite and magnesite. Moreover, FGD gypsum has a prismatic structure with a dense and smooth surface, whereas a pore structure and flaky structure appear with increasing calcination temperature. The kinetic adsorption process was well described by a pseudo‐second‐order model with a high correlation coefficient (R2 > 0.99). The adsorption isotherms indicated that phosphate removal can be fitted by the Langmuir model. CONCLUSIONS Calcination improved the performance of FGD gypsum towards phosphate sorption. The precipitation following chemical adsorption dominated the phosphate removal by the calcined FGD gypsum, and phosphate was ultimately immobilized by hydroxyapatite. Calcined FGD gypsum has excellent capacity for phosphate removal for three reasons: an enhanced content of active Ca by calcination, a novel nanoscale prismatic structure with a high specific surface area, and a favorable reactivity and alkaline environment produced by the decomposition of magnesite, dolomite and calcite. © 2017 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

“…As shown in Fig. 8(b [49][50][51] The SEM, TEM and TEM-EDS images of FGD gypsum after removal of phosphate are presented in Fig. 9.…”

Section: Adsorption Mechanismmentioning

confidence: 98%

Enhanced adsorption capacity for phosphate in wastewater from thermally activated flue gas desulfurization gypsum

Cheng

Chen

Zou

et al. 2018

J of Chemical Tech & Biotech

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“…Bradbury and Baeyens [30] studied the sorption behavior of Eu(III) on Na-and Ca-montmorillonite and proposed that bidentate complexes formed and cation exchange reactions occurred between the surface of the sorbent and Eu(III). Recent years, some new materials were used to study sorption of Eu(III) characteristics [31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Sorption of Eu(III) on Th4(PO4)4P2O7: effects of pH, complexing anions and fulvic acid

Qian

Cui

Liu

et al. 2015

J Radioanal Nucl Chem

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The sorption of Eu(III) on Th 4 (PO 4 ) 4 P 2 O 7 was studied under ambient conditions using the batch technique. The effects of pH, the concentrations of Eu(III) on Th 4 (PO 4 ) 4 P 2 O 7 sorption were investigated. The sorption characteristics of sulfate, phosphate and fulvic acid (FA) on Th 4 (PO 4 ) 4 P 2 O 7 was explored in the presence Eu(III). The results indicated that sorption of Eu(III) on Th 4 (PO 4 ) 4 P 2 O 7 was strongly affected by pH and the concentrations of Eu(III). Eu(III) sorption onto Th 4 (PO 4 ) 4 P 2 O 7 was greatly enhanced in FA and phosphate media than in KNO 3 . The Langmuir, Freundlich and D-R model were used to simulate the sorption isotherms of Eu(III) at four different medium. FA sorption isotherm can be described by Langmuir model in presence and absence of Eu(III) in solution.

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Modulating Water Absorption of Hardened Gypsum Plaster with Enhanced Mechanical Strengths by Molecular Modification of Polyvinyl Alcohol

Zhou

Xia

et al. 2019

J. Mater. Civ. Eng.

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Europium, strontium and cesium migration from the composite of poly(methyl acrylate) gypsum prepared by gamma irradiation

Cited by 4 publications

References 19 publications

Enhanced adsorption capacity for phosphate in wastewater from thermally activated flue gas desulfurization gypsum

Enhanced adsorption capacity for phosphate in wastewater from thermally activated flue gas desulfurization gypsum

Sorption of Eu(III) on Th4(PO4)4P2O7: effects of pH, complexing anions and fulvic acid

Modulating Water Absorption of Hardened Gypsum Plaster with Enhanced Mechanical Strengths by Molecular Modification of Polyvinyl Alcohol

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