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Membranes
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Transfer in Electromembrane Systems: Theory, Experiment and Application
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Transfer in Electromembrane Systems: Theory, Experiment and Application

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Membrane Physics and Theory".

Deadline for manuscript submissions: closed (30 April 2021) | Viewed by 1546

Special Issue Editor

Dr. Makhamet Urtenov

E-Mail Website
Guest Editor
Department of Applied Mathematics, Federal State Budgetary Educational Institution of Higher Education “Kuban State University”, 350040 Krasnodar, Russia
Interests: membrane systems; mathematical modeling of electromembrane processes; overlimiting transport; ecology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Membrane systems are critical technologies. They are used for water purification, in microfluidic devices (in laboratories on chips), for the creation of new biomaterials, in the development of fuel cells, etc.

Membrane methods, including electrodialysis (ED), are the dominant processes in providing fresh water to millions of people, and they have already proven their environmental and economic feasibility. Electrodialysis desalination provides high water recovery without the use of chemicals. In addition, the ability of ED to extract ionic and non-ionic components is used for the treatment of municipal and industrial wastewater, brackish water, in the chemical and food industries,and electric power.

A large number of researchers develop and improve mathematical models of various electrochemical phenomena in membrane processes as a powerful tool for understanding the processes of ED systems, for studying and optimizing their performance. Authors are invited to submit their latest results; both original articles and reviews are welcome.

Dr. Makhamet Urtenov
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Membranes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Overlimiting transport
  • Electrodialysis
  • Microfluidic devices
  • Mathematical model
  • Membrane

Published Papers (1 paper)

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Research

10 pages, 2807 KiB  
Article
Theoretical Analysis of the Stationary Transport of 1:1 Salt Ions in a Cross-Section of a Desalination Channel, Taking into Account the Non-Catalytic Dissociation/Recombination Reaction of Water Molecules
by Makhamet Urtenov, Vitaly Gudza, Natalia Chubyr and Inna Shkorkina
Membranes 2020, 10(11), 342; https://doi.org/10.3390/membranes10110342 - 13 Nov 2020
Cited by 4 | Viewed by 1239
Abstract
In electromembrane systems, the theoretical study of salt ion transport usually uses mathematical models of salt ion transport in the depleted diffusion layer of ion-exchange membranes. This study uses a one-dimensional mathematical model of salt ion transport in a cross-section of a desalination [...] Read more.
In electromembrane systems, the theoretical study of salt ion transport usually uses mathematical models of salt ion transport in the depleted diffusion layer of ion-exchange membranes. This study uses a one-dimensional mathematical model of salt ion transport in a cross-section of a desalination channel formed by anion-exchange and cation-exchange membranes, taking into account an effect of a dissociation/recombination reaction of water molecules. The reaction on the one hand leads to an overlimiting mass transfer due to the effect of exaltation of the limiting current. On the other hand, an appearance of new electric charge carriers (hydrogen and hydroxyl ions) can reduce the space charge that occurs in membranes and suppress an electroconvective mechanism of overlimiting transport. Thus, there is a problem of studying these phenomena together, taking into account their mutual influence, and this article is devoted to the solution of this problem. Theoretically, using a method of mathematical modeling and numerical research, main regularities are established; in particular, it is shown that the dissociation/recombination reaction of water molecules does not lead to the destruction of the double electric layer at the membranes, but also creates a new double electric layer in the middle of the desalination channel. Thus, the space charge and the dissociation/recombination reaction significantly affect each other and simultaneously the transport of salt ions. Full article
(This article belongs to the Special Issue Transfer in Electromembrane Systems: Theory, Experiment and Application)
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