Theoretical Analysis of the Influence of Spacers on Salt Ion Transport in Electromembrane Systems Considering the Main Coupled Effects

This article considers a theoretical analysis of the influence of the main coupled effects and spacers on the transfer of salt ions in electromembrane systems (EMS) using a 2D mathematical model of the transfer process in a desalting channel with spacers based on boundary value problems for the coup...

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Главные авторы:	Chekanov, V. S., Чеканов, В. С.
Formato:	Статья
Idioma:	English
Publicado em:	2024
Assuntos:	Nernst–Planck–Psson and Navier–Stokoies equations system Quasi-stationary state Desalting Electrodialysis Electroconvection Dissociation/recombination of water molecules
Acesso em linha:	https://dspace.ncfu.ru/handle/20.500.12258/26827
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id	ir-20.500.12258-26827
record_format	dspace
spelling	ir-20.500.12258-268272024-02-29T12:53:33Z Theoretical Analysis of the Influence of Spacers on Salt Ion Transport in Electromembrane Systems Considering the Main Coupled Effects Chekanov, V. S. Чеканов, В. С. Nernst–Planck–Psson and Navier–Stokoies equations system Quasi-stationary state Desalting Electrodialysis Electroconvection Dissociation/recombination of water molecules This article considers a theoretical analysis of the influence of the main coupled effects and spacers on the transfer of salt ions in electromembrane systems (EMS) using a 2D mathematical model of the transfer process in a desalting channel with spacers based on boundary value problems for the coupled system of Nernst–Planck–Poisson and Navier–Stokes equations. The basic patterns of salt ion transport have been established, taking into account diffusion, electromigration, forced convection, electroconvection, dissociation/recombination reactions of water molecules, as well as spacers located inside the desalting channel. It has been shown that spacers and taking into account the dissociation/recombination reaction of water molecules significantly change both the formation and development of electroconvection. This article confirms the fact of the exaltation of the limiting current studied by Harkatz, where it is shown that the current (flux) of salt ions increases when the dissociation reaction begins by a certain value called the exaltation current, which is proportional to the flow of water dissociation products. A significant combined effect of electroconvection and dissociation/recombination reactions as well as the spacer system in the desalting channel on the transport of salt ions are shown. The complex, nonlinear, and non-stationary interaction of all the main effects of concentration polarization and spacers in the desalting channel are also considered in the work. 2024-02-29T12:52:31Z 2024-02-29T12:52:31Z 2024 Статья Kovalenko, A., Urtenov, M., Chekanov, V., Kandaurova, N. Theoretical Analysis of the Influence of Spacers on Salt Ion Transport in Electromembrane Systems Considering the Main Coupled Effects // Membranes. - 2024. - 14 (1). - статья № 20. - DOI: 10.3390/membranes14010020 http://hdl.handle.net/20.500.12258/26827 en Membranes application/pdf application/pdf
institution	СКФУ
collection	Репозиторий
language	English
topic	Nernst–Planck–Psson and Navier–Stokoies equations system Quasi-stationary state Desalting Electrodialysis Electroconvection Dissociation/recombination of water molecules
spellingShingle	Nernst–Planck–Psson and Navier–Stokoies equations system Quasi-stationary state Desalting Electrodialysis Electroconvection Dissociation/recombination of water molecules Chekanov, V. S. Чеканов, В. С. Theoretical Analysis of the Influence of Spacers on Salt Ion Transport in Electromembrane Systems Considering the Main Coupled Effects
description	This article considers a theoretical analysis of the influence of the main coupled effects and spacers on the transfer of salt ions in electromembrane systems (EMS) using a 2D mathematical model of the transfer process in a desalting channel with spacers based on boundary value problems for the coupled system of Nernst–Planck–Poisson and Navier–Stokes equations. The basic patterns of salt ion transport have been established, taking into account diffusion, electromigration, forced convection, electroconvection, dissociation/recombination reactions of water molecules, as well as spacers located inside the desalting channel. It has been shown that spacers and taking into account the dissociation/recombination reaction of water molecules significantly change both the formation and development of electroconvection. This article confirms the fact of the exaltation of the limiting current studied by Harkatz, where it is shown that the current (flux) of salt ions increases when the dissociation reaction begins by a certain value called the exaltation current, which is proportional to the flow of water dissociation products. A significant combined effect of electroconvection and dissociation/recombination reactions as well as the spacer system in the desalting channel on the transport of salt ions are shown. The complex, nonlinear, and non-stationary interaction of all the main effects of concentration polarization and spacers in the desalting channel are also considered in the work.
format	Статья
author	Chekanov, V. S. Чеканов, В. С.
author_facet	Chekanov, V. S. Чеканов, В. С.
author_sort	Chekanov, V. S.
title	Theoretical Analysis of the Influence of Spacers on Salt Ion Transport in Electromembrane Systems Considering the Main Coupled Effects
title_short	Theoretical Analysis of the Influence of Spacers on Salt Ion Transport in Electromembrane Systems Considering the Main Coupled Effects
title_full	Theoretical Analysis of the Influence of Spacers on Salt Ion Transport in Electromembrane Systems Considering the Main Coupled Effects
title_fullStr	Theoretical Analysis of the Influence of Spacers on Salt Ion Transport in Electromembrane Systems Considering the Main Coupled Effects
title_full_unstemmed	Theoretical Analysis of the Influence of Spacers on Salt Ion Transport in Electromembrane Systems Considering the Main Coupled Effects
title_sort	theoretical analysis of the influence of spacers on salt ion transport in electromembrane systems considering the main coupled effects
publishDate	2024
url	https://dspace.ncfu.ru/handle/20.500.12258/26827
work_keys_str_mv	AT chekanovvs theoreticalanalysisoftheinfluenceofspacersonsaltiontransportinelectromembranesystemsconsideringthemaincoupledeffects AT čekanovvs theoreticalanalysisoftheinfluenceofspacersonsaltiontransportinelectromembranesystemsconsideringthemaincoupledeffects
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Theoretical Analysis of the Influence of Spacers on Salt Ion Transport in Electromembrane Systems Considering the Main Coupled Effects

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