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Membranes
Special Issues
Development and Applications of Electrodialysis and Novel Electro-Membrane Processes
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Development and Applications of Electrodialysis and Novel Electro-Membrane Processes

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

Deadline for manuscript submissions: closed (26 April 2023) | Viewed by 5370

Special Issue Editors

Dr. Chenxiao Jiang

E-Mail Website
Guest Editor
Department of Applied Chemistry, College of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
Interests: electrodialysis; ion distillation; membrane separation; ion exchange membrane; desalination; renewable energy; process intensification
Dr. Ying Mei

E-Mail Website
Guest Editor
Research and Development Center for Watershed Environmental Eco-Engineering, Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai 519087, China
Interests: membrane technology; seawater desalination; water reuse; resource recovery
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Electrodialysis is a typical membrane procedure employed in seawater/brackish water desalination, wastewater treatment, hydrometallurgy, chemical engineering, biorefining, and renewable energy. Taking advantage of critical ion classification and desalination features under the driven forces of electrical fields, the electrodialysis process presents superior isolation features in particular applications of lithium mining, RO concentrated brine treatment, organic acid classification, CO2 capture utilization and storage, and chemical refining. In contrast to passive ion transport in the electrodialysis process, reverse electrodialysis (RED) takes advantage of ion-controllable diffusion across the ion-exchange membranes and 2D membrane materials and is becoming the leading approach for blue energy (created by mixing saltwater and river water) recovery. Utilizing cutting-edge equipment and technology for analytical characterization made it possible to gain a comprehensive understanding of the ion-transition character across the ion exchange membrane, electro-chemical phenomena on the solution/membrane interface, and fluid hydrodynamic charactersistics within the electrodialysis process. Therefore, in addition to electrodialysis, an increasing number of innovative electro-membrane processes, such as ion-distillation, electrodialysis, complexation electrodialysis, ion-plus salinity gradient flow batteries, and membrane capacitive deionization, have been accomplished. In the meantime, the development of more advanced membranes led to significant improvements in the ion-separation efficiency, desalination/reconcentration ratio, and water dissociation efficiency of ion exchange membranes (including bipolar membranes). These improvements are driving significant advances in the applications of electrodialysis and electro-membrane processes.

This Special Issue aims to highlight innovations in electrodialysis and novel electro-membrane processes. In this Special Issue, original research articles and reviews related to electrodialysis applications, novel membranes in electrodialysis, innovative electrodialysis, the modeling/simulation of phenomenon in the electrodialysis process, and development of critical electrodialysis modules are welcome.

We look forward to receiving your contributions.

Dr. Chenxiao Jiang
Dr. Ying Mei
Guest Editors

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

  • electrodialysis
  • reverse electrodialysis
  • bipolar membrane
  • desalination
  • mining
  • wastewater treatment
  • bio-refining
  • separation
  • selective separation
  • salinity gradient energy

Published Papers (4 papers)

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Research

10 pages, 43660 KiB  
Communication
Resourceful Treatment of Battery Recycling Wastewater Containing H2SO4 and NiSO4 by Diffusion Dialysis and Electrodialysis
by Sifan Wu, Haitao Zhu, Yaqin Wu, Shuna Li, Gaoqi Zhang and Zhiwei Miao
Membranes 2023, 13(6), 570; https://doi.org/10.3390/membranes13060570 - 31 May 2023
Cited by 2 | Viewed by 1197
Abstract
Facing the increasing demand for batteries worldwide, recycling waste lithium batteries has become one of the important ways to address the problem. However, this process generates a large amount of wastewater which contains high concentration of heavy metals and acids. Deploying lithium battery [...] Read more.
Facing the increasing demand for batteries worldwide, recycling waste lithium batteries has become one of the important ways to address the problem. However, this process generates a large amount of wastewater which contains high concentration of heavy metals and acids. Deploying lithium battery recycling would cause severe environmental hazards, would pose risks to human health, and would also be a waste of resources. In this paper, a combined process of diffusion dialysis (DD) and electrodialysis (ED) is proposed to separate, recover, and utilize Ni2+ and H2SO4 in the wastewater. In the DD process, the acid recovery rate and Ni2+ rejection rate could reach 75.96% and 97.31%, respectively, with a flow rate of 300 L/h and a W/A flow rate ratio of 1:1. In the ED process, the recovered acid from DD is concentrated from 43.1 g/L to 150.2 g/L H2SO4 by the two-stage ED, which could be used in the front-end procedure of battery recycling process. In conclusion, a promising method for the treatment of battery wastewater which achieved the recycling and utilization of Ni2+ and H2SO4 was proposed and proved to have industrial application prospects. Full article
(This article belongs to the Special Issue Development and Applications of Electrodialysis and Novel Electro-Membrane Processes)
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15 pages, 4540 KiB  
Article
Monoethanolamine (MEA) Degradation: Influence on the Electrodialysis Treatment of MEA-Absorbent
by Eduard G. Novitsky, Evgenia A. Grushevenko, Ilya L. Borisov, Tatiana S. Anokhina and Stepan D. Bazhenov
Membranes 2023, 13(5), 491; https://doi.org/10.3390/membranes13050491 - 01 May 2023
Cited by 1 | Viewed by 1394
Abstract
The thermal-oxidative degradation of aqueous solutions of carbonized monoethanolamine (MEA, 30% wt., 0.25 mol MEA/mol CO2) was studied for 336 h at 120 °C. Based on the change in the color of the solution and the formation of a precipitate, the [...] Read more.
The thermal-oxidative degradation of aqueous solutions of carbonized monoethanolamine (MEA, 30% wt., 0.25 mol MEA/mol CO2) was studied for 336 h at 120 °C. Based on the change in the color of the solution and the formation of a precipitate, the occurrence of thermal-oxidative degradation of the MEA solution with the formation of destruction products, including insoluble ones, was confirmed. The electrokinetic activity of the resulting degradation products, including insoluble ones, was studied during the electrodialysis purification of an aged MEA solution. To understand the influence of degradation products on the ion-exchange membrane properties, a package of samples of MK-40 and MA-41 ion-exchange membranes was exposed to a degraded MEA solution for 6 months. A comparison of the efficiency of the electrodialysis treatment of a model absorption solution of MEA before and after long-time contact with degraded MEA showed that the depth of desalination was reduced by 34%, while the magnitude of the current in the ED apparatus was reduced by 25%. For the first time, the regeneration of ion-exchange membranes from MEA degradation products was carried out, which made it possible to restore the depth of desalting in the ED process by 90%. Full article
(This article belongs to the Special Issue Development and Applications of Electrodialysis and Novel Electro-Membrane Processes)
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16 pages, 4913 KiB  
Article
Applying Chitin Enhanced Diafiltration Process (CEFP) in Removing Cobalt from Synthetic Wastewater
by Noureddine Elboughdiri, Djamel Ghernaout, Aicha Gasmi, Muhammad Imran Khan and Badia Ghernaout
Membranes 2022, 12(12), 1194; https://doi.org/10.3390/membranes12121194 - 27 Nov 2022
Viewed by 1272
Abstract
This research aims to study the removal of Cobalt (Co) using chitin. The optimum conditions for removing Co were ascertained through batch experiments. This study involves the determination of chitin metal-binding efficiency by using a polymer enhanced diafiltration setup that utilizes a membrane [...] Read more.
This research aims to study the removal of Cobalt (Co) using chitin. The optimum conditions for removing Co were ascertained through batch experiments. This study involves the determination of chitin metal-binding efficiency by using a polymer enhanced diafiltration setup that utilizes a membrane process (ultrafiltration) to keep the Chitin. The effects of several parameters on sorption like pH, the concentrations of chitin, and Co were examined. The best efficiency was reached if the setup was run at pH < 6.3 (i.e., chitin pKa). At acidic conditions and by employing 6 g/L of chitin, Co level (20 mg/L) was decreased at 95%. To further investigate the kinetics of sorption for each gram of chitin, equilibrium experiments were carried out. For 1–100 mM Co, the performed rheological measurements show that chitin was observed to be moderately shear thickening at relatively lower levels (4 and 6 g/L); further, it was moderately shear thinning at slightly more important levels (12 and 20 g/L). Some improvement of the raw polymer will be necessary to enhance sorption to a sustainable limit and make this scheme an economically viable process. Full article
(This article belongs to the Special Issue Development and Applications of Electrodialysis and Novel Electro-Membrane Processes)
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14 pages, 2829 KiB  
Article
Theoretical Analysis of Electroconvection in the Electrodialysis Desalination Channel under the Action of Direct Current
by Aminat Uzdenova, Anna Kovalenko and Makhamet Urtenov
Membranes 2022, 12(11), 1125; https://doi.org/10.3390/membranes12111125 - 10 Nov 2022
Cited by 4 | Viewed by 961
Abstract
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 [...] Read more.
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. Full article
(This article belongs to the Special Issue Development and Applications of Electrodialysis and Novel Electro-Membrane Processes)
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