Article
Engineering, Chemical
Mehdi Sedighi, Mohammad Mahdi Behvand Usefi, Ahmad Fauzi Ismail, Mostafa Ghasemi
Summary: Electrodialysis is a membrane separation method that utilizes an electrical potential difference to separate ions in aqueous solutions. It is used in various industries for water desalination, regeneration, and other applications. The process involves ion exchange membranes, electrodes, and spacers to achieve selective mass transport and create a potential difference. This study discusses different aspects of electrodialysis, including its application, structure, membrane types, electrode materials, spacers, and application in wastewater treatment.
Article
Engineering, Chemical
Francesco Deboli, Bart Van der Bruggen, Mateusz L. Donten
Summary: This work presents a versatile chemistry platform for the fabrication of hierarchical cation and anion exchange membranes (hCEMs and hAEMs) with tuneable transport properties. The hierarchical ion exchange membranes were made by coating and UV crosslinking an acrylic ionomer on top of a PVC-SiO2 porous substrate. The properties and performance of the membranes were found to be dependent on the coating crosslinking density, with higher crosslinking density resulting in better selectivity and performance.
Article
Chemistry, Analytical
Junsu Jang, Minsung Kim, Joonghan Shin, Daejong Yang, Minseok Kim, Bumjoo Kim
Summary: This study experimentally demonstrates the mass transport effects of partially masked ion-exchange membranes in microfluidic electrodialysis systems. Different masking membranes were prepared by depositing non-conductive films on parts of the membranes. The results show that overlapped masking membranes exhibit better electrical conductance and current/energy efficiency, while a reduction in the unit length of unmasked ion-exchange membranes enhances overall mass transport.
Article
Engineering, Chemical
Wuxing Liu, Yue Mao, Yanan Li, Xu Zhang, Fabao Luo, Xiaolin Wang, Xiaozhao Han, Chao Xu
Summary: In recent years, energy conversion and storage technologies have attracted much attention. Bipolar membrane reverse electrodialysis (BMRED) is a safe and sustainable method for energy conversion and storage. This study focuses on investigating the performance of BMRED in an open-loop configuration and its application in electrodialysis (ED) desalination. The results show that the BMRED containing BP-1 membrane exhibits better performance compared to that containing YDS-002 membrane, and the flow rate has no significant effect on the former. Using HCl as the acid solution, acid and alkali solutions with concentrations below 1.0 mol/L are suitable for BMRED performance. Moreover, integrating BMRED with ED desalination can lead to higher desalination ratios by increasing the acid and alkali concentrations.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Francesco Deboli, Bart Van der Bruggen, Mateusz L. Donten
Summary: The study fabricated hierarchical cation exchange membranes using blade coating and UV crosslinking techniques, demonstrating their potential for desalination. The simple and cost-effective manufacturing process resulted in membranes with performance comparable to state-of-the-art materials, indicating promising industrial applications.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Abhishek Rajput, Prem P. Sharma, Savan K. Raj, Jyoti Kumari, Mangal S. Rathore, Vaibhav Kulshrestha
Summary: The study demonstrates the use of ion-exchange membranes synthesized through free-radical polymerization for efficient electrodialysis desalination of brackish water. The membranes show improved desalination performance with slight temperature increment, and cost-effective production methods were identified.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
A. H. M. Golam Hyder, Brian A. Morales, Malynda A. Cappelle, Stephen J. Percival, Leo J. Small, Erik D. Spoerke, Susan B. Rempe, W. Shane Walker
Summary: The study evaluated the performance differences in ED desalination between novel bioinspired IEM and conventional IEMs, finding that the bioinspired ion exchange membrane exhibited competitive performance.
Article
Engineering, Environmental
Huiqin Fan, Yong Xu, Fei Zhao, Qing-Bai Chen, Di Wang, Jianyou Wang
Summary: This study aimed to prepare a novel type of cation exchange membrane for electrodialysis desalination. The as-prepared composite membrane composed of a thin and dense skin layer and a porous support layer demonstrated effective ion transport and dimensional stability with low ion exchange capacity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Jawad Mustafa, Ali H. Al-Marzouqi, Nayef Ghasem, Muftah H. El-Naas, Bart Van der Bruggen
Summary: This study presents a method for effectively managing waste fractions and producing value-added products in the desalination process. By utilizing a multi-chamber electrodialysis, salt can be removed from water and CO2 can be captured to generate hydrochloric acid, carbonates/bicarbonate salt mixture, and irrigation standard water. Through optimization of process variables, the study achieved a balance between high CO2 uptake, salt removal, and current efficiency.
Article
Engineering, Multidisciplinary
Shaoxiang Lee, Wenqiao Meng, Yupeng Wang, Dong Wang, Meng Zhang, Guohui Wang, Jiaji Cheng, Yue Zhou, Wenjuan Qu
Summary: Electrodialysis technology has been attracting attention in water resource utilization, with ion exchange membrane structure and performance at its core. This study investigated the effects of energy consumption, current efficiency, and other parameters of homogeneous and heterogeneous membranes using single variable method. Experimental results showed high current efficiencies and concentration levels for both types of membranes, providing direction for their application in electrodialysis engineering.
AIN SHAMS ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Yakubu A. Jarma, Ezgi Cermikli, Deniz Ipekci, Esra Altiok, Nalan Kabay
Summary: Two electrodialysis (ED) stacks with different membranes were compared for simultaneous separation and recovery of boron and lithium. The results indicated that under certain operational parameters, the best separation efficiency was achieved at 20 V electrical potential.
Article
Engineering, Chemical
Anran Zhang, Lv Li, Lingling Ma, Yanzhen Ren, Lei Bai, Gaohong He, Fengxiang Zhang
Summary: This study demonstrates the effectiveness of a novel soft template strategy in fabricating high-performance anion exchange membranes for electrodialysis applications. The soft template strategy enhances microphase separation in the membranes to improve performance, particularly in terms of current efficiency and energy consumption.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Ivy Wu, Ryan J. Park, Ria Ghosh, Mei-Chen Kuo, Soenke Seifert, E. Bryan M. Coughlin, Andrew M. Herring
Summary: The development of improved durable, conductive, and selective anion exchange membranes (AEMs) is crucial for electrodialysis. In this study, a series of ABA triblock copolymers with different block sizes were synthesized and quaternized with methylpiperidine. The small block AEM showed excellent performance with high selectivity and improved salt removal efficiency compared to a commercial AEM. The enhanced properties of the small block AEM are attributed to its unique structure and water-rich region.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Joonhyeon Kim, Sangha Kim, Rhokyun Kwak
Summary: This study investigates the effects of non-conductive pattern structures on ion transport through ion exchange membranes in electrodialysis (ED). The study identifies two factors, electric view factor and vortex intensity, that control conductive/convective ion transports. Experimental results on a two-dimensional ED platform show that these factors play a significant role in determining current, ion conduction, and salt removal performance.
Article
Engineering, Chemical
Hong Liu, Qianhong She
Summary: Water transport has a significant impact on ion transport during electrodialysis, particularly in the design and development of ion exchange membranes. This study systematically investigates the influence of membrane structure-dependent water transport on electrodialysis performance and explores the potential use of porous ion exchange membranes. The findings provide new insights into the application of porous ion exchange membranes in osmotic electrodialysis.
JOURNAL OF MEMBRANE SCIENCE
(2022)
