Browsing NTNU Open by Author "Tekinalp, Önder"
Now showing items 1-11 of 11
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Cation Exchange Membranes and Process Optimizations in Electrodialysis for Selective Metal Separation: A Review
Tekinalp, Önder; Zimmermann, Pauline; Holdcroft, Steven; Burheim, Odne Stokke; Deng, Liyuan (Peer reviewed; Journal article, 2023)The selective separation of metal species from various sources is highly desirable in applications such as hydrometallurgy, water treatment, and energy production but also challenging. Monovalent cation exchange membranes ... -
Designing monovalent selective anion exchange membranes for the simultaneous separation of chloride and fluoride from sulfate in an equimolar ternary mixture
Tekinalp, Önder; Zimmermann, Pauline; Burheim, Odne Stokke; Deng, Liyuan (Peer reviewed; Journal article, 2022)Selective removal of multiple counter-ions in a single mixture is highly desirable for many industrial applications but also very challenging. This study focuses on designing monovalent selective anion exchange membranes ... -
Development of ion exchange membranes for resource recovery and impurity removal in electrodialysis
Tekinalp, Önder (Doctoral theses at NTNU;2023:416, Doctoral thesis, 2023)In metal production and processing, large amounts of aqueous streams containing both metallic and non-metallic species are generated when extracting the desired bulk metals. While some of the remaining diluted compounds, ... -
Electrodialysis in Hydrometallurgical Processes
Zimmermann, Pauline; Tekinalp, Önder; Deng, Liyuan; Forsberg, Kerstin; Wilhelmsen, Øivind; Burheim, Odne Stokke (Chapter, 2020)Electrodialysis (ED) is an ionic exchange membrane process for separation of different components and species. In desalination, a large part of the energy is used to sustain a concentration difference between the solutions, ... -
Enhancing Palladium Recovery Rates in Industrial Residual Solutions through Electrodialysis
Zimmermann, Pauline; Tekinalp, Önder; Wilhelmsen, Øivind; Deng, Liyuan; Burheim, Odne Stokke (Peer reviewed; Journal article, 2023)Palladium is a vital commodity in the industry. To guarantee a stable supply in the future, it is imperative to adopt more effective recycling practices. In this proof-of-concept study, we explore the potential of ... -
Heat to Hydrogen by RED—Reviewing Membranes and Salts for the RED Heat Engine Concept
Zimmermann, Pauline; Solberg, Simon Birger Byremo; Tekinalp, Önder; Lamb, Jacob Joseph; Wilhelmsen, Øivind; Deng, Liyuan; Burheim, Odne Stokke (Peer reviewed; Journal article, 2022)The Reverse electrodialysis heat engine (REDHE) combines a reverse electrodialysis stack for power generation with a thermal regeneration unit to restore the concentration difference of the salt solutions. Current approaches ... -
Limiting current density as a selectivity factor in electrodialysis of multi-ionic mixtures
Zimmermann, Pauline; Tekinalp, Önder; Solberg, Simon Birger Byremo; Wilhelmsen, Øivind; Deng, Liyuan; Burheim, Odne Stokke (Peer reviewed; Journal article, 2023)Electrodialysis is a promising technology to remove low concentrations of target ions from multi-ionic mixtures. While the synthesis of selective membranes is a prominent topic in research, few studies have been presented ... -
Removing halide ions from sulfate solutions by anion exchange membranes in electrodialysis process: Recent advances, challenges, and prospects
Tekinalp, Önder; Zimmermann, Pauline; Burheim, Odne Stokke; Deng, Liyuan (Journal article; Peer reviewed, 2024)Removing halide ions from wastewater and industrial effluents is crucial to eliminating their potential risks to human health, ecosystems, and industrial operations. However, conventional techniques for this process are ... -
Selective recovery of silver from copper impurities by electrodialysis: Tailoring monovalent selective cation exchange membranes by monomolecular layer deposition
Tekinalp, Önder; Zimmermann, Pauline; Solberg, Simon Birger Byremo; Burheim, Odne Stokke; Deng, Liyuan (Peer reviewed; Journal article, 2023)Selective recovery of silver from secondary resources enriched with copper impurities is a well-known challenge but is urgently needed by the industry. This study addresses the challenge by developing a highly efficient ... -
Selective recovery of silver ions from copper-contaminated effluents using electrodialysis
Zimmermann, Pauline; Wahl, Kristin; Tekinalp, Önder; Solberg, Simon Birger Byremo; Deng, Liyuan; Wilhelmsen, Øivind; Burheim, Odne Stokke (Journal article; Peer reviewed, 2024)With the growing demand for silver, the recycling of this precious metal from secondary sources has become imperative. However, the presence of copper impurities poses a significant challenge. This study aims to explore ... -
Tailoring anion exchange membranes for palladium recovery from industrial solutions using electrodialysis
Tekinalp, Önder; Wang, Xueru; Zimmermann, Pauline; Burheim, Odne Stokke; Deng, Liyuan (Journal article; Peer reviewed, 2024)Limited natural reserves and extensive use of palladium across various industries make it urgent to implement efficient recovery strategies. Despite its unique advantages, the use of ion exchange membranes in electrodialysis ...