Equilibrium and kinetics of heavy metal ion exchange

Lee, Ivan; Kuan, Yu-Chung; Chern, Jia‐Ming

doi:10.1016/j.jcice.2006.11.001

Cited by 111 publications

(41 citation statements)

References 36 publications

(32 reference statements)

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“…Many investigators have studied the heavy metal ions removal by using different types of ion exchange resins. Lee et al [6] studied equilibrium and kinetic of Cu 2+ /H + , Zn 2+ /H + , and Cd 2+ /H + removal using Amberlite IR-120. El-Kamash [7] used several kinetic models to test the experimental data and to examine the controlling mechanism of the ion exchange of zinc and cadmium ions using synthetic zeolite.…”

Section: Introductionmentioning

confidence: 99%

Kinetic study of heavy metal ions removal by ion exchange in batch conical air spouted bed

Zewail

Yousef

2015

Alexandria Engineering Journal

171

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Spouted bed contactor is a hybrid of fixed and fluidized bed contactors, which retains the advantages of each with good hydrodynamic conditions. The aim of the present study is to investigate the performance of a batch conical air spouted vessel for heavy metal removal by strong cation exchange resins (AMBERJET 1200 Na). The effect of various parameters such as type of heavy metal ions (Ni +2 and Pb +2 ), contact time, superficial air velocity and initial heavy metal ion concentration on % heavy metal ion removal has been investigated. It has been found that under optimum conditions 98% and 99% removal of Ni +2 and Pb +2 were achieved respectively. Several kinetic models were used to test the experimental data and to examine the controlling mechanism of the sorption process. The present results of Ni +2 and Pb +2 well fit pseudo second order kinetic model with a high correlation coefficient. Both film diffusion and intra-particle diffusion contribute to the ion exchange process. The present study revealed that spouted bed vessel may provide an effective alternative for conducting ion exchange reactions. ª 2014 Production and hosting by Elsevier B.V. on behalf of Faculty of Engineering, Alexandria University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/3.0/).

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Section: Introductionmentioning

confidence: 99%

Kinetic study of heavy metal ions removal by ion exchange in batch conical air spouted bed

Zewail

Yousef

2015

Alexandria Engineering Journal

171

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“…The positive value of Ea suggest that increase in temperature favors the adsorption, for that it can be concluded that the adsorption process is an endothermic one. It was written that if the values of Ea are within the range of 8-25 kJ/mol, then the process is physical adsorption, if it is a aqueous diffusion for Ea values less than 24.0 kJ/mol, while if it is pore diffusion, Ea values will be in the range of 20-40 kJ/mol, the estimated value of Ea for our adsorption is lies within the range of pore diffusion, then the rate limiting process is the pore diffusion one [28,29].…”

Section: Enthalpy and Activation Energymentioning

confidence: 87%

Study on removal behavior and separation efficiency of naturally occurring bentonite for sulfate from water by continuous column and batch methods

Baker

Ghanem

2015

Eur. J. Chem.

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“…The variation in ∆S showed that organic solvent compositions can produce a kind of disorder in the water structure. Change in negative entropy may be due to the decreased randomness on the resin-solution interface and the positive entropy change may be due to the release of water during the adsorption of chromium(VI) [16,17].…”

Section: Effect Of Interaction Timementioning

confidence: 99%

Removal of Hexavalent Chromium from Water and Organic Solvent Mixed Media by Adsorption Using Weak Base Anion Exchanger Tulsion A-2X (MP)

Koujalagi¹,

Divekar²,

Kulkarni³

2018

Asian J. Chem.

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The removal of a most common toxic, environmental pollutant and carcinogen chromium(VI) was studied by batch technique for the adsorption and ion exchange method from water and organic solvent mixed media under various conditions like interaction time, pH, effect of organic solvents and temperature. Maximum adsorption of chromium(VI) on Tulsion A-2X (MP) was in the optimum pH range of 5.0-5.5. Increase in temperature decreased the adsorption of chromium(VI). Interaction time indicated that about 70 % removal of chromium(VI) was within 15 min. Chromium(IV) adsorption was discussed based on first order kinetics and adsorption isotherms.

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Equilibrium and kinetics of heavy metal ion exchange

Cited by 111 publications

References 36 publications

Kinetic study of heavy metal ions removal by ion exchange in batch conical air spouted bed

Kinetic study of heavy metal ions removal by ion exchange in batch conical air spouted bed

Study on removal behavior and separation efficiency of naturally occurring bentonite for sulfate from water by continuous column and batch methods

Removal of Hexavalent Chromium from Water and Organic Solvent Mixed Media by Adsorption Using Weak Base Anion Exchanger Tulsion A-2X (MP)

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