Experimental validation for a mathematical model describing beryllium retention on flow-through fixed bed reactor of Amb-IR-120

Demerdash, M.; Saleh, Mahmoud M.; Shabaan, M.; Othman, Sameh H.; El‐Anadouli, Bahgat E.

doi:10.1016/j.hydromet.2011.03.009

Cited by 7 publications

(2 citation statements)

References 18 publications

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“…This procedure is lengthy and costly. Accurate modelling and simulation techniques have been reported; however, they generally require lengthy and complex computations [4], [5], [6]. In terms of modelling and simulation of the adsorption column operations, two main trends have been surveyed according to Othman et al [5].…”

Section: Introductionmentioning

confidence: 99%

“…In terms of modelling and simulation of the adsorption column operations, two main trends have been surveyed according to Othman et al [5]. These include the heterogeneous approach where the system is viewed as a two-phase structure, and the homogeneous approach where the adsorption system is taken as a single-phase structure indirectly accounting for a static phase [5], [6]. In both approaches, the modelling is based on mass-balance equations.…”

Section: Introductionmentioning

confidence: 99%

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Analytical Modelling of Ion-Exchange Process during Removal of Copper Cations from Aqueous Solutions using Clinoptilolite

2017

Nov. 27-28, 2017 South Africa ASETWM-17, RCABES-17 &Amp; EBHSSS-17

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Abstract-An analytical method based on the shrinking core mechanism (SCM) is suggested for the modelling of the ion-exchange process during the removal of copper cations from aqueous solutions using clinoptilolite. The surface coverage of the clinoptilolite by the adsorbed cations is simulated as a shrinking of particle of irregular geometry during a non-catalytic heterogeneous solid-fluid reaction. The mathematical fitting of the relative experimental data allows one to show that the ion-exchange process during the removal of copper cations from aqueous solutions can also be simulated as a shrinking-core mechanism. The simulation is shown to be 95% accurate for the present case. The method can be used for a multivariable modelling approach.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analytical Modelling of Ion-Exchange Process during Removal of Copper Cations from Aqueous Solutions using Clinoptilolite

2017

Nov. 27-28, 2017 South Africa ASETWM-17, RCABES-17 &Amp; EBHSSS-17

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Removal of beryllium (Be2+) from aqueous solution by 5-sulfosalicylic acid-loaded anion-exchange resin

Dündar,

Arar

2024

Res Chem Intermed

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This study presents the preparation and application of a 5-sulfosalicylic acid-loaded anion-exchange resin to remove Be2+ from aqueous solutions. Optimization efforts focused on critical parameters, including resin dosage, initial solution pH, and the influence of interfering ions. Results indicate an optimal resin dose of 0.3 g and a working pH of ≥ 4.0 for maximal Be2+ removal efficiency. Kinetic analysis reveals rapid removal kinetics, with 99% removal achieved within 45 min. Notably, the resin exhibits remarkable selectivity, maintaining consistent removal rates for Be2+ even in the presence of common interfering ions such as Na+, K+, Ca2+, Mg2+, and Fe2+. Sorption isotherms fitting the Langmuir model further support the resin's effectiveness in Be2+ removal. Thermodynamic evaluation suggests the removal process is spontaneous (∆G° < 0) and endothermic (∆H° > 0), indicating favorable energetics. Crucially, the Be-loaded resin is easily regenerated using 0.1 M HCl, enhancing its practical applicability. These results highlight the effectiveness and potency of the prepared resin in Be2+ removal, suggesting promising solutions for addressing environmental contamination.

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Mathematical modeling of a ternary Cu–Zn–Na ion exchange system in a fixed-bed column using Amberlite IR 120

Borba

Santos

Silva

2012

Chemical Engineering Journal

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Experimental validation for a mathematical model describing beryllium retention on flow-through fixed bed reactor of Amb-IR-120

Cited by 7 publications

References 18 publications

Analytical Modelling of Ion-Exchange Process during Removal of Copper Cations from Aqueous Solutions using Clinoptilolite

Analytical Modelling of Ion-Exchange Process during Removal of Copper Cations from Aqueous Solutions using Clinoptilolite

Removal of beryllium (Be2+) from aqueous solution by 5-sulfosalicylic acid-loaded anion-exchange resin

Mathematical modeling of a ternary Cu–Zn–Na ion exchange system in a fixed-bed column using Amberlite IR 120

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