Results 31 to 40 of about 3,062,144 (293)

An innovative compound bed of EDI device with enhancing ion-exchange resins regeneration efficiency

open access: yesWater Science and Technology, 2021
Electrodeionization (EDI) technology is limited by low regeneration efficiency of ion exchange resins, requirements of high-quality influent water, fouling of the ion exchange membrane and electrode, etc.
Xu Chen   +6 more
doaj   +1 more source

The influence of acid activation of bentonite in the composition of a bipolar membrane on the characteristics of the electrodialysis conversion of sodium sulphate

open access: yesКонденсированные среды и межфазные границы, 2022
The effect on the characteristics of the electrodialysis process of the acid activation of bentonite included in the cationexchange layer of an experimental bipolar membrane obtained by applying a liquid LF-4SK cation-exchange layer containing ...
Sabukhi I. Niftaliev   +5 more
doaj   +1 more source

Impact of Hierarchical Cation-Exchange Membranes’ Chemistry and Crosslinking Level on Electrodialysis Demineralization Performances of a Complex Food Solution

open access: yesMembranes, 2023
Hierarchical cation-exchange membranes (hCEMs) fabricated by blade coating and UV crosslinking of ionomer on top of a porous substrate demonstrated promising results in performing NaCl demineralization.
Elodie Khetsomphou   +3 more
doaj   +1 more source

Influence of the ionic composition on the diffusion mass transfer of saccharides through a cation-exchange membrane [PDF]

open access: yes, 2013
Recent studies have pointed out that the presence of salts can change significantly the membrane process performances because of the resulting modification of the neutral solutes transfer through the membrane.
Roux-de Balmann, Hélène   +3 more
core   +1 more source

FEATURES OF OPERATION OF POLYSTYRENE MEMBRANES IN PETROCHEMICAL INDUSTRY

open access: yesВ мире научных открытий, 2017
The article presents the research results of ion-exchange membranes based on polystyrene. Describes the process of swelling of ion exchange membrane for example, the swelling of the cation exchange resin in butanol.
E. K. Karimov   +4 more
doaj   +1 more source

The Influence of Concentration and Temperature on the Membrane Resistance of Ion Exchange Membranes and the Levelised Cost of Hydrogen from Reverse Electrodialysis with Ammonium Bicarbonate

open access: yesMembranes, 2021
The ohmic resistances of the anion and cation ion-exchange membranes (IEMs) that constitute a reverse electrodialysis system (RED) are of crucial importance for its performance. In this work, we study the influence of concentration (0.1 M, 0.5 M, 1 M and
Yash Dharmendra Raka   +4 more
doaj   +1 more source

Heterogeneity in Cation Exchange Ag+ Doping of CdSe Nanocrystals [PDF]

open access: yes, 2022
Cation exchange is becoming extensively used for nanocrystal (NC) doping in order to produce NCs with unique optical and electronic properties. However, despite its ever-increasing use, the relationships between the cation exchange process, its doped NC ...
Abigail R, Freyer   +5 more
core   +2 more sources

Construction of Carbon Nanotube-based Composite Membrane with Electron-ion Double Transfer Function and its Electrically Driven Ion Separation Performance

open access: yesTaiyuan Ligong Daxue xuebao, 2023
The construction of electroactive ion separation membranes with dual functions of electron and ion transfer is a key technology in the field of electronchemically switched ion permselectivity membrane (ESIPM) separation.
Xiaogang WU   +6 more
doaj   +1 more source

Membrane Potentials and Ion Permeability in a Cation Exchange Membrane

open access: yesBiophysical Journal, 1971
The nonequilibrium electrical potentials across an artificial membrane bathed by solutions of a single salt have been measured and calculated using the Goldman-Hodgkin-Katz equation and the irreversible thermodynamic equation. The latter equation predicts the observed potential differences over a 2500-fold concentration range, while application of a ...
Gunn, Robert B., Curran, Peter F.
openaire   +2 more sources

The Role of Ion Exchange Membranes in Membrane Capacitive Deionisation

open access: yesMembranes, 2017
Ion-exchange membranes (IEMs) are unique in combining the electrochemical properties of ion exchange resins and the permeability of a membrane. They are being used widely to treat industrial effluents, and in seawater and brackish water desalination ...
Armineh Hassanvand   +4 more
doaj   +1 more source

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