Theoretical Analysis of Electroconvection in the Electrodialysis Desalination Channel under the Action of Direct Current
The development of electroconvection in electromembrane systems is a factor that increases the efficiency of the electrolyte solution desalination process. The desalination of the solution, manifested by a change in the distribution of the ion concentration, can affect the mechanisms of development...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/12/11/1125 |
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| author | Aminat Uzdenova Anna Kovalenko Makhamet Urtenov |
| author_facet | Aminat Uzdenova Anna Kovalenko Makhamet Urtenov |
| author_sort | Aminat Uzdenova |
| collection | DOAJ |
| description | The development of electroconvection in electromembrane systems is a factor that increases the efficiency of the electrolyte solution desalination process. The desalination of the solution, manifested by a change in the distribution of the ion concentration, can affect the mechanisms of development of electroconvection. The purpose of this work is to study the electroconvective flow developing in the desalination channel under various desalination scenarios. The study was carried out on the basis of a mathematical model of the transfer of binary electrolyte ions in the desalination channel formed between the anion and cation exchange membranes under the action of DC current. An analytical estimation of the threshold current density reflecting the conditions of the system transition into a quasi-stationary state has been obtained. The chronopotentiograms of the desalination channel and the thickness of the electroconvective mixing layer are calculated for both pre-threshold and supra-threshold values of the current density. |
| first_indexed | 2024-03-09T18:51:00Z |
| format | Article |
| id | doaj.art-870cd5977d8e44d387a95c02dd6904da |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-09T18:51:00Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-870cd5977d8e44d387a95c02dd6904da2023-11-24T05:49:29ZengMDPI AGMembranes2077-03752022-11-011211112510.3390/membranes12111125Theoretical Analysis of Electroconvection in the Electrodialysis Desalination Channel under the Action of Direct CurrentAminat Uzdenova0Anna Kovalenko1Makhamet Urtenov2Department of Computer Science and Computational Mathematics, Umar Aliev Karachai-Cherkess State University, 369202 Karachaevsk, RussiaDepartment of Data Analysis and Artificial Intelligence, Kuban State University, 350040 Krasnodar, RussiaDepartment of Applied Mathematics, Kuban State University, 350040 Krasnodar, RussiaThe development of electroconvection in electromembrane systems is a factor that increases the efficiency of the electrolyte solution desalination process. The desalination of the solution, manifested by a change in the distribution of the ion concentration, can affect the mechanisms of development of electroconvection. The purpose of this work is to study the electroconvective flow developing in the desalination channel under various desalination scenarios. The study was carried out on the basis of a mathematical model of the transfer of binary electrolyte ions in the desalination channel formed between the anion and cation exchange membranes under the action of DC current. An analytical estimation of the threshold current density reflecting the conditions of the system transition into a quasi-stationary state has been obtained. The chronopotentiograms of the desalination channel and the thickness of the electroconvective mixing layer are calculated for both pre-threshold and supra-threshold values of the current density.https://www.mdpi.com/2077-0375/12/11/1125electrodialysisdesalinationelectroconvectionchronopotentiogramquasi-stationary statesystem of Nernst–Planck–Poisson and Navier–Stokes equations |
| spellingShingle | Aminat Uzdenova Anna Kovalenko Makhamet Urtenov Theoretical Analysis of Electroconvection in the Electrodialysis Desalination Channel under the Action of Direct Current Membranes electrodialysis desalination electroconvection chronopotentiogram quasi-stationary state system of Nernst–Planck–Poisson and Navier–Stokes equations |
| title | Theoretical Analysis of Electroconvection in the Electrodialysis Desalination Channel under the Action of Direct Current |
| title_full | Theoretical Analysis of Electroconvection in the Electrodialysis Desalination Channel under the Action of Direct Current |
| title_fullStr | Theoretical Analysis of Electroconvection in the Electrodialysis Desalination Channel under the Action of Direct Current |
| title_full_unstemmed | Theoretical Analysis of Electroconvection in the Electrodialysis Desalination Channel under the Action of Direct Current |
| title_short | Theoretical Analysis of Electroconvection in the Electrodialysis Desalination Channel under the Action of Direct Current |
| title_sort | theoretical analysis of electroconvection in the electrodialysis desalination channel under the action of direct current |
| topic | electrodialysis desalination electroconvection chronopotentiogram quasi-stationary state system of Nernst–Planck–Poisson and Navier–Stokes equations |
| url | https://www.mdpi.com/2077-0375/12/11/1125 |
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