Cover of: Kinetics of Metal Adsorption from Aqueous Solutions | Sotira Yiacoumi

Kinetics of Metal Adsorption from Aqueous Solutions

Models, Algorithms, and Applications
  • 256 Pages
  • 4.48 MB
  • English
Chemistry of metals & their compounds, Industrial Chemistry & Manufacturing Technologies, Ionic solutions, Adsorption, Environmental Pollution Engineering, Technology, Science, Science/Mathematics, Metal ions, Chemistry - Inorganic, Chemistry - Physical & Theoretical, Science / Chemistry / Technical & Industrial, Engineering - Chemical & Bioche
The Physical Object
ID Numbers
Open LibraryOL7810778M
ISBN 100792396006
ISBN 139780792396000

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Kinetics of Metal Ion Adsorption from Aqueous Solutions: Models, Algorithms, And ApplicationsFormat: Paperback. This monograph is intended to provide a systematic presentation of theories concerning the adsorption of metal ions from aqueous solutions onto surfaces of natural and synthetic substances and to outline methods and procedures to estimate the extent and progress ofadsorption.

Kinetics of Metal Kinetics of Metal Adsorption from Aqueous Solutions book Adsorption from Aqueous Solutions: Models, Algorithms, and Applications [Yiacoumi, Sotira, Chi Tien] on *FREE* shipping on qualifying offers.

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Introduction -- Ch. Adsorption of Ionic Solutes at Solid-Solution Interfaces -- Ch. Adsorption of Metal Ions from Aqueous Solutions: Model Development -- Ch. Adsorption of Metal Ions from Aqueous Solutions: Algorithm Development -- Ch. Adsorption of Metal Ions from Aqueous Solutions: Model Application -- Ch.

Book Descriptions: We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Kinetics Of Metal Ion Adsorption From Aqueous Solutions Models Algorithms And Applications.

Generically, all these problems are directly related to the phenomenon of metal ion adsorption. Kinetics of Metal Ion Adsorption from Aqueous Solutions: Models, Algorithms, and Applications is a focused and practically orientated book that gives an introductory yet complete presentation of the subject.

Adsorption Kinetic Study for Removal of Heavy Metal from Aqueous Solution by Natural Adsorbent A.M Ahmed 1, * M.A Darweesh 2, F.M Mahgoub 3, W.A Hamad 2.

Adsorption of heavy metals from aqueous solutions by waste coffee residues: kinetics, equilibrium, and thermodynamics Chung-Hsin Wu Department of Chemical and Materials Engineering, National Kaohsiung University of Applied Sciences, Chien Kung Road, Kaohsiung, Taiwan, Tel.

+ 7ext. ; Fax: + 7 Correspondence wuch. Abstract. The development of a comprehensive description of metal ion adsorption from aqueous solutions at equilibrium and non-equilibrium conditions, based on the principles of surface complexation models, is presented.

Adsorption of Cd(II) from aqueous solution on sodium dodecylsulfate-montmorillonite (SDS-Mt) and hydroxyl-alumino-silicate-montmorillonite (HAS-Mt) was also shown to be first order in kinetics with the rate coefficient for HAS-Mt higher than that of SDS-Mt (adsorbent g L − 1, Cd(II) 20 to mg L − 1, pHstirring speed rpm Cited by:   Adsorption kinetics.

About 40 cm 3 of each aqueous solution was added to g of the adsorbent at room temperature and shaken vigorously at respective contact times. The obtained residual metal ion concentrations were used to calculate the pseudo-first-order and pseudo-second-order adsorption kinetics.

Adsorption thermodynamics. This review discussed the recent achievements in adsorption isotherms, adsorption kinetics and adsorption mechanism according to the existing forms of heavy metals in water.

The effect of process conditions, such as temperature, pH value, and coexisting ions, on adsorption performance are combed, and the universal guidance law is obtained.

The development of a general algorithm for the calculation of metal ion adsorption from aqueous solutions at equilibrium and non-equilibrium conditions is presented. This algorithm, named KINEQL (Yiacoumi, ), incorporates elements from existing equilibrium algorithms with new elements for kinetic calculations.

The pH of the solution plays a very important role on the uptake of metal ions, since it determines the surface charge of the adsorbent. Fig. 3 shows the amount of heavy metal ions removed from aqueous solution as a function of pH at a heavy metal concentration of mg/g.

The amount of Cu 2+ ions removed from solution increases rapidly from pH 4 to pH by:   Elovich’s equation has been widely used to describe the adsorption of gases onto solid materials; it is also applied to describe the process of heavy metals adsorption from aqueous model describes the kinetics of the chemisorption process (Namasivayam and Sureshkumar, ) using the following equation: (10) q t = 1 β e In (α.

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Adsorption of Cd2+ and Cu2+ ions from aqueous solutions by a cross-linked polysulfonate–carboxylate resin. Arabian Journal of Chemistry12 (8),   Adsorption mechanism.

The interactions between metallic ions and mineral surfaces in any environment allow the sorption of ions to the solid surface, thereby decreasing the concentration of ions in the aqueous phases below the solubility limits of the solid phase [].Determination of partitioning of heavy metals among the solid phase and accurately predicting their mobility in natural.

In this work, arabinoxylan-graft-acrylic acid (AX-g-AA) hydrogel was prepared and used as an adsorbent to remove and recover Cu 2+ and Ni 2+ from aqueous solutions. The influences of pH, ligand content on the adsorption capacity of the hydrogel, adsorption equilibrium, and kinetic were studied in detail.

Adsorption studies. The prepared Pt/zeolite 4A was then used as adsorbent in the removal of toxic metal ions in aqueous solution. The removal efficiency (R%) of the metal ions on this adsorbent (Table 1) show good affinity of this material for a number of ions such as Co (II), Ba (II), La (III) and Ni (II) ions in order to confirm the utility of platinum nanoparticles in this.

adsorption of both metals in single and binary systems fits a pseudo-second order kinetic model. Carboxylic acid and hydroxyl group was the active sites of the adsorbent. Adsorbents contain functional groups like carboxyl, hydroxyl, amine and amide resulting in enhanced external surface area for metal ion adsorption.

Three metal–organic frameworks (MOFs), MIL(Fe, Cr) and NH2-MIL(Al), were prepared, and their adsorption equilibria for phenol and p-nitrophenol (PNP) from water were investigated. All three MOFs show similar and limited adsorption capacities for phenol, but NH2-MIL(Al) reveals exceptional adsorption capacity for PNP, greatly exceeding those of MIL(Fe, Cr).

The pH 0 ≈ is found to be the optimum for the removal of individual cations from the aqueous solutions by RHA at an optimum dose of 10 kg/m 3. The kinetics of adsorption showed that the metal ions adsorption on RHA is a gradual process with quasi-equilibrium being attained in 5 h.

removal of chromium(VI) from aqueous solutions. The kinetics of the adsorption of metal was rapid in the initial stage followed by slow rate. The adsorption data showed that the applicability of the intraparticle diffusion model for chromium removal.

Acknowledgements 23 The authors are thankful for the financial assistance. The results suggest that LDHs synthesized in this work could be suitable as sorbent materials for the adsorption and removal of heavy metal ions from aqueous solutions.

The pseudo-first-order kinetic and pseudo-second-order models were applied to test the experimental data and explain the kinetics of the LDHs adsorption process. The effect of initial metal ion concentration on the rate of metal ion sorption with contact time was studied using an agitated, baffled, dm 3 sorber vessel.

The contact time data were analyzed using the Lagergren first order kinetic model and a pseudo-second order kinetic model. Kinetics Study The studies on adsorption kinetics were conducted with an initial feed concentration of mg L−1 at pH 6 and at 25 °C.

Description Kinetics of Metal Adsorption from Aqueous Solutions FB2

The concentration of heavy metal ions in the solutions were analyzed at a series of time points (0, 10, 20, 30, 40, 50, 60, 90,and min).

The amount of adsorbed metal ions was calculated. The ability of the synthesized CTA-Aliquat Polymer Inclusion Membranes (PIMs) for removing heavy metal ions (Cd 2+, Zn 2+ and Fe 2+) from aqueous solution were study provides important kinetic data necessary for adsorption of different heavy metal ions on CTA-Aliquat PIMs.

The kinetics of adsorption of linoleic acid from dodecane onto three metal surfaces have been examined. Desorption into pure solvent has also been investigated.

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A Langmuir and a more general model have been formulated to describe the kinetics. The values obtained for activation energies and enthalpies suggest that. The maximum percentage adsorption of copper (II) and lead (II) by the FNF bio-char was established at 60 minutes contact time, °C and g adsorbent dose.

Increase in the metal ion concentration and the presence of interfering ions in the aqueous solution lead to decrease in the percentage adsorption. This book presents the results and data from research and adsorption experiments carried out on the removal of nickel and chromium (as well as other metals) from aqueous solutions .The effect of pH of the stock solution on adsorption (the percentage removal of Fe 3+) is shown in Figure 4.

Extraction of metal ions from aqueous media by adsorption had been reported [41] to be usually pH dependent because pH affects the surface charge of adsorbents and the degree of ionization. Adsorption behavior of herbicide paraquat from aqueous solutions using starfish particles: kinetic, isotherm, and thermodynamic studies.

Asia-Pacific Journal of Chemical Engineering10 (3),