Journal ArticleDOI
Diffusion coefficients of ions through ion-exchange membranes for Donnan dialysis using ions of the same valence
TLDR
The flux of ions in Donnan dialysis was found to be influenced by the concentrations of both feed ions and driving ions, and monovalent ions showed a larger flux than bivalent ions, suggesting that they were better as driving ions.About:
This article is published in Chemical Engineering Science.The article was published on 1997-04-01. It has received 63 citations till now. The article focuses on the topics: Donnan potential & Ionophore.read more
Citations
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Seawater electrodialysis with preferential removal of divalent ions
TL;DR: In this paper, the effect of applied current density on the ionic composition of a ternary salt mixture and artificial North Sea water is studied with a lab scale electrodialysis stack, which was used in a recycling batch mode.
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Acid stable thin-film composite membrane for nanofiltration prepared from naphthalene-1,3,6-trisulfonylchloride (NTSC) and piperazine (PIP)
TL;DR: In this article, an acid stable thin-film composite membrane for nanofiltration was fabricated by interfacial polymerization of naphthalene-1,3,6-trisulfonylchloride (NTSC) and piperazine (PIP) on porous polysulfone support membrane.
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Recovery and Concentration of Al(III), Fe(III), Ti(IV), and Na(I) from Red Mud
TL;DR: In this article, the transport of metal ions through polysulfonated membranes under Donnan dialysis conditions has been studied as a function of HCl concentration at room temperature.
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Diffusion coefficients of ions through ion excange membrane in Donnan dialysis using ions of different valence
TL;DR: It was found that a large flux of ions could be obtained using the monovalent driving ions in Donnan dialysis, and the small flux can be obtaining using bi- or higher-valentdriving ions.
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Microstructure Determines Water and Salt Permeation in Commercial Ion-Exchange Membranes
TL;DR: The finding that water and salt permeance vary over several orders of magnitude among commercial IEMs, making some membranes better suited than others to electrochemical processes that involve high salt concentrations and/or concentration gradients, provides clear evidence that mobile salt does not interact strongly with polymer chains in highly swollen I EMs.
References
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A theoretical analysis of donnan dialysis across charged porous membranes
TL;DR: A previously developed model for the transport of ions in charged capillary tubes is used to determine the effect of membrane properties and solution concentration on steady-state ion and solution fluxes in two types of Donnan dialysis separations.
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Separation of Ag+, Zn2+ and Cu2+ ions by electrodialysis with monovalent cation specific membrane and EDTA
TL;DR: In this paper, electrodialysis is applied to the separation of the cations from a mixture of the electrolytes AgNo3, Zn(NO3)2 in aqueous solution when the metal ion concentrations are low.
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Donnan dialysis concentration of cupric ions
TL;DR: In this article, the concentration of cupric ion was studied with a flat-plate dialyzer having a single cation exchange membrane, and exchange equilibrium constants were expressed as a function of the ionic strength of the bulk solution.
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Characteristic coefficients for equilibrium between solution and Neosepta or Selemion cation exchange membranes
TL;DR: In this paper, the characteristic coefficients of ions in Neosepta and Selemion cation exchange membranes were measured and compared with those of Nafion Cation Exchange membranes obtained previously.
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Membrane diffusion-controlled kinetics of ionic transport
TL;DR: In this article, a computer algorithm based on the Nernst-Planck equation was developed for digital simulation of ionic transport in an ion exchange system with a membrane separating two electrolyte solutions.