Ion transfer across ion-exchange membranes with homogeneous and heterogeneous surfaces

2005 ◽  
Vol 285 (1) ◽  
pp. 247-258 ◽  
Author(s):  
E. Volodina ◽  
N. Pismenskaya ◽  
V. Nikonenko ◽  
C. Larchet ◽  
G. Pourcelly
Keyword(s):  
Ion Exchange ◽  
Ion Transfer ◽  
Ion Exchange Membranes ◽  
Heterogeneous Surfaces

Selectivity of ion transfer in carboxylic ion exchange membranes

1985 ◽  
Vol 190 (1-2) ◽  
pp. 33-45 ◽  
Author(s):  
Claude Gavach ◽  
Arlette Lindheimer ◽  
Danièle Cros ◽  
Bernard Brun
Keyword(s):  
Ion Exchange ◽  
Ion Transfer ◽  
Ion Exchange Membranes

Modeling the ion transfer and polarization of ion exchange membranes in bioelectrochemical systems

2009 ◽  
Vol 75 (2) ◽  
pp. 136-141 ◽  
Author(s):  
Falk Harnisch ◽  
Robert Warmbier ◽  
Ralf Schneider ◽  
Uwe Schröder
Keyword(s):  
Ion Exchange ◽  
Bioelectrochemical Systems ◽  
Ion Transfer ◽  
Ion Exchange Membranes

Ion-Exchange Membranes. II. Ion Transfer Rates

1956 ◽  
Vol 60 (6) ◽  
pp. 750-754 ◽  
Author(s):  
R. J. Stewart ◽  
W. F. Graydon
Keyword(s):  
Ion Exchange ◽  
Ion Transfer ◽  
Ion Exchange Membranes ◽  
Transfer Rates

scholarly journals Mathematical modelling of space charge breakdown in membrane systems taking into account the non-catalytic dissociation/ recombination reaction of water molecules

2020 ◽  
Vol 224 ◽  
pp. 02009
Author(s):  
V Gudza ◽  
M Urtenov ◽  
N Chubyr ◽  
I Shkorkina
Keyword(s):  
Ion Exchange ◽  
Boundary Value Problem ◽  
Space Charge ◽  
Theoretical Study ◽  
Boundary Value ◽  
Water Molecules ◽  
Recombination Reaction ◽  
Ion Transfer ◽  
Ion Exchange Membranes ◽  
Poisson Equations

In electromembrane systems, a theoretical study of salt ion transfer usually uses mathematical models of salt ion transfer in the depleted diffusion layer of ion-exchange membranes. In this paper, a new mathematical model of ion transport in the cross-section of the desalination channel formed by two ion-exchange membranes – anion-exchange (AEM) and cation-exchange (CEM), taking into account the non-catalytic dissociation/recombination reaction of water molecules. The model is a boundary value problem for a non-stationary system of Nernst-Planck and Poisson equations. A numerical analysis of the boundary value problem is performed and the main regularities of the 1:1 salt ion transfer process are established, in particular, the occurrence and development of space charge breakdown is shown. The interaction of the space charge and the noncatalytic dissociation/recombination reaction of water molecules are theoretically investigated.

Equilibrium Sorptions in Heterogeneous Ion Exchange Membranes

1992 ◽  
Vol 57 (9) ◽  
pp. 1905-1914
Author(s):  
Miroslav Bleha ◽  
Věra Šumberová
Keyword(s):  
Experimental Data ◽  
Ion Exchange ◽  
Total Content ◽  
Distribution Coefficients ◽  
Exchange Capacity ◽  
Ion Exchange Membranes ◽  
Ion Exchange Capacity ◽  
Equilibrium Sorption ◽  
Inhomogeneity Factor

The equilibrium sorption of uni-univalent electrolytes (NaCl, KCl) in heterogeneous cation exchange membranes with various contents of the ion exchange component and in ion exchange membranes Ralex was investigated. Using experimental data which express the concentration dependence of equilibrium sorption, validity of the Donnan relation for the systems under investigation was tested and values of the Glueckauf inhomogeneity factor for Ralex membranes were determined. Determination of the equilibrium sorption allows the effect of the total content of internal water and of the ion-exchange capacity on the distribution coefficients of the electrolyte to be determined.

Interpolymer ion exchange membranes for CapMix process

Desalination ◽  
2020 ◽  
Vol 482 ◽  
pp. 114384
Author(s):  
Katarzyna Smolinska-Kempisty ◽  
Anna Siekierka ◽  
Marek Bryjak
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Membranes
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