Verification Stability of Anion-Exchange Membrane with Surface Modification with Application in Electrodialysis Process

Zárybnická, Lucie; Stránská, Eliška

doi:10.3311/ppch.11522

Cited by 4 publications

(3 citation statements)

References 18 publications

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“…Disruption of the active material and/or matrix leads to leaching of ions and reduces the additional functions (adsorption, electrostatic interaction, or steric exclusion) of membrane performance. , The loss of active material from enhanced membranes not only affects the efficiency of ion removal but also generates the secondary foulants into the wastewater. Two strategies are developed to improve stability by strengthening the membrane material while improving the adhesion between the active material and matrix . First, the relationship between enhanced UF membrane and external operation conditions needs to be optimized.…”

Section: Main Challenges Of Uf On Ion Removalmentioning

confidence: 99%

“…Two strategies are developed to improve stability by strengthening the membrane material while improving the adhesion between the active material and matrix. 171 First, the relationship between enhanced UF membrane and external operation conditions needs to be optimized. The membrane stability depends on the suitable operating conditions such as pH, operation pressure, filtration mode, and temperature.…”

Section: Improved Stabilitymentioning

confidence: 99%

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Progress of Ultrafiltration-Based Technology in Ion Removal and Recovery: Enhanced Membranes and Integrated Processes

et al. 2023

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Toxic ions from industrial wastewater entail important challenges to the environment. Ultrafiltration (UF) with low operation pressure and high permeability has been widely used for macromolecules and suspended solids separation. However, UF cannot be directly used to separate ions from wastewater due to the large pore size of UF membranes. Recently, the design of enhanced UF membrane structures and UF-based integrated processes expands the application of UF for ion removal. This review aims to summarize the latest developments of UF membranes preparation as well as integrated UF processes in ion removal. First, the advanced materials for UF membranes preparation are discussed, with specific attention on active nanomaterials including inorganic materials, organic materials, and biomaterial-based materials. The design principles such as pore size control and composite thin layer fabrication of enhanced UF-based membranes for ion removal are illustrated. Next, integrated processes such as micellar-enhanced UF, polymer-enhanced UF, electro-driven UF, and other UF-based combined processes are reviewed. Finally, current application limitations and future perspectives in the enhanced UF membrane for ion removal are discussed. This review presents potential approaches for the preparation and application of enhanced UF membranes in sustainable ion removal from wastewaters.

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Section: Main Challenges Of Uf On Ion Removalmentioning

confidence: 99%

Section: Improved Stabilitymentioning

confidence: 99%

Progress of Ultrafiltration-Based Technology in Ion Removal and Recovery: Enhanced Membranes and Integrated Processes

et al. 2023

View full text Add to dashboard Cite

show abstract

“…More specifically, researchers have sought to leverage hydrodynamic phenomena' simulation and modeling studies to optimize membrane distillation operating parameters [1][2][3][4][5]. Furthermore, the choice of membrane materials and fabrication processes have been widely explored to increase the permeate flux and mitigate fouling phenomena [6][7][8][9][10]. According to Culfaz et al [11], the helical configuration of the membrane promotes turbulence and therefore causes a significant reduction in concentration polarization.…”

Section: Introductionmentioning

confidence: 99%

Applications of Helical Versus Straight Hollow Fiber Membranes: A Review

Zrelli¹,

Debaya²,

Doucoure³

et al. 2022

ETJ

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A comprehensive comparison was performed between helical and straight hollow fibers.  Applications of helical hollow fibers membrane were studied.  The use of helical fibers minimizes fouling and concentration polarization.  Helical configuration promotes turbulence.The production of straight and helical hollow fibers plays an important role in developing hollow fiber membrane technology that encompasses a broad range of designs. During the last two decades, scientific studies devoted to straight hollow fibers were more abundant than those focused on helical fibers. Several major applications considering side-by-side testing of these two geometries are discussed in this review. For membrane extraction, desalination, and membrane contactor processes, it is observed that permeability rates are 10%-400 % higher for helical fibers compared to straight fibers. This outcome is justified by the presence of Dean-vortices-induced flow turbulences inherent to the geometry of helical membranes. These conditions give rise to an uptake of mass and heat transfer coefficients and a reduction of temperature and concentration polarization phenomena. Aside from enhanced flow properties, helical hollow fiber bundles tend to be more robust by design, thus exhibiting better resiliency over long service operations than straight bundles. One persistent shortcoming of the helical fibers seems to be an increase in pressure drop. However, this does not always translate into a higher energy consumptioni.e., versus straight bundles. Given the performance advantage, product robustness, and adaptiveness to a broad range of applications, the adoption of helical hollow fiber technology deserves growing support from the membrane community in academic and industrial settings.

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A mini review of multifunctional ultrafiltration membranes for wastewater decontamination: Additional functions of adsorption and catalytic oxidation

Ren

Min

et al. 2021

Science of The Total Environment

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Verification Stability of Anion-Exchange Membrane with Surface Modification with Application in Electrodialysis Process

Abstract: Abstract

Cited by 4 publications

References 18 publications

Progress of Ultrafiltration-Based Technology in Ion Removal and Recovery: Enhanced Membranes and Integrated Processes

Progress of Ultrafiltration-Based Technology in Ion Removal and Recovery: Enhanced Membranes and Integrated Processes

Applications of Helical Versus Straight Hollow Fiber Membranes: A Review

A mini review of multifunctional ultrafiltration membranes for wastewater decontamination: Additional functions of adsorption and catalytic oxidation

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