Effect of the type of ion exchange membrane on performance, ion transport, and pH in biocatalyzed electrolysis of wastewater

2008 ◽  
Vol 57 (11) ◽  
pp. 1757-1762 ◽  
Author(s):  
R. A. Rozendal ◽  
T. H. J. A. Sleutels ◽  
H. V. M. Hamelers ◽  
C. J. N. Buisman
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Membrane ◽  
Transport Numbers ◽  
Ion Exchange Membranes ◽  
Bipolar Membrane ◽  
Electrolysis Cells ◽  
Ph Increase ◽  
A Charge ◽  
Exchange Membrane ◽  
Biocatalyzed Electrolysis

Previous studies have shown that the application of cation exchange membranes (CEMs) in bioelectrochemical systems running on wastewater can cause operational problems. In this paper the effect of alternative types of ion exchange membrane is studied in biocatalyzed electrolysis cells. Four types of ion exchange membranes are used: (i) a CEM, (ii) an anion exchange membrane (AEM), (iii) a bipolar membrane (BPM), and (iv) a charge mosaic membrane (CMM). With respect to the electrochemical performance of the four biocatalyzed electrolysis configurations, the ion exchange membranes are rated in the order AEM > CEM > CMM > BPM. However, with respect to the transport numbers for protons and/or hydroxyl ions (tH/OH) and the ability to prevent pH increase in the cathode chamber, the ion exchange membranes are rated in the order BPM > AEM > CMM > CEM.

scholarly journals Characterization of Ion Exchange Membranes with Special Surface Structure

2017 ◽  
Author(s):  
Eliška Stránská ◽  
Kristýna Weinertová ◽  
David Neděla ◽  
Jan Křivčík
Keyword(s):  
Ion Exchange ◽  
Physical Properties ◽  
Surface Structure ◽  
Flat Surface ◽  
Ion Exchange Membrane ◽  
Membrane Properties ◽  
Ion Exchange Membranes ◽  
Geometrical Structures ◽  
Special Surface ◽  
Exchange Membrane

This article focuses on the preparation of the heterogeneous ion exchange membrane with a special surface structure made with three types of knitted fabric. The special surface structure of ion exchange membranes can be useful for the intensification of mass transfer processes in electrodialysis.Three types of structured ion exchange membranes were prepared together with a membrane with a flat surface to compare the influence of geometrical structures on the behaviour of ion exchange membrane properties. Electrochemical, mechanical and physical properties were determined. Structured membranes exhibited comparable electrochemical and physical properties to the flat ion exchange membrane. Some transport parameters were measured in an electrodialysis stack with two concentrations of solution. Two electrodialysis stacks with different sizes of active area were used for comparison. Improving efficiency and mass flux was not confirmed. It was not demonstrated that structured IEMs were not better than IEMs with the flat surface.

Electrochemical Performance Evaluation of Bipolar Membrane Using Poly(phenylene oxide) for Water Treatment System

2020 ◽  
Vol 20 (11) ◽  
pp. 6797-6801
Author(s):  
Tae Yang Son ◽  
Jun Seong Yun ◽  
Kihyun Kim ◽  
Sang Yong Nam
Keyword(s):  
Tensile Strength ◽  
Ion Exchange ◽  
Water Splitting ◽  
High Efficiency ◽  
Ion Exchange Membranes ◽  
Bipolar Membrane ◽  
Porous Support ◽  
Bipolar Membranes ◽  
Phenylene Oxide ◽  
Exchange Membrane

This study describes the use of poly(phenylene oxide) polymer-based ion-exchange polymers, polystyrene-based ion-exchange particles and a porous support for fabricating bipolar membranes and the results of an assessment of the applicability of these materials to water splitting. In order to achieve good mechanical as well as good ion-exchange properties, bipolar membranes were prepared by laminating poly(phenylene oxide) and polystyrene based ion-exchange membranes with a sulfonated polystyrene-block-(ethylene-ran-butylene)-block-polystyrene) (S-SEBS) modified interface. PE pore-supported ion-exchange membranes were also used as bipolar membranes. The tensile strength was 13.21 MPa for the bipolar membrane which utilized only a cation/anion-exchange membrane. When ion-exchange nanoparticles were introduced for high efficiency, a reduction in the tensile strength to 6.81 MPa was observed. At the same time, bipolar membrane in the form of a composite membrane using PE support exhibited the best tensile strength of 32.41 MPa. To confirm the water-splitting performance, an important factor for a bipolar membrane, pH changes over a period of 20 min were also studied. During water slitting using CA-P-PE-BPM, the pH at the CEM part and the AEM part changed from 5.4 to 4.18 and from 5.4 to 5.63, respectively.

A multiple ion-exchange membrane design for redox flow batteries

2014 ◽  
Vol 7 (9) ◽  
pp. 2986-2998 ◽  
Author(s):  
Shuang Gu ◽  
Ke Gong ◽  
Emily Z. Yan ◽  
Yushan Yan
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Membrane ◽  
Cell Design ◽  
Ion Exchange Membranes ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Battery Cell ◽  
Redox Flow Batteries ◽  
Membrane Design ◽  
Exchange Membrane

A redox-flow-battery cell design with multiple ion-exchange membranes is provided to enable combinations of any redox pairs and supporting electrolytes.

Hierarchical structural designs of ion exchange membranes for flow batteries

2019 ◽  
Vol 7 (10) ◽  
pp. 5794-5802 ◽  
Author(s):  
Xiujun Yue ◽  
Qian He ◽  
Hee-Dae Lim ◽  
Ping Liu
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Membrane ◽  
Ion Exchange Membranes ◽  
Trade Off ◽  
Flow Batteries ◽  
Exchange Membrane

A hierarchically structured composite ion exchange membrane is developed to solve the trade-off between conductivity and selectivity.

scholarly journals Key elements and materials in microbial desalination cells

2021 ◽  
pp. 41-92
Author(s):  
Eduard Borràs ◽  
Martí Aliaguilla ◽  
Laura Huidobro ◽  
Sandra Martínez-Crespiera ◽  
Sonia Matencio ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Membrane ◽  
Ion Exchange Membranes ◽  
Material Development ◽  
General Overview ◽  
Membrane Development ◽  
Exchange Membrane ◽  
Carbon Based

Abstract This chapter presents the most relevant advances achieved during the MIDES project in relation to material development of key elements for microbial desalination cells. The first section is devoted to electrodes. Providing a general overview of the requirements of carbon-based materials to serve either as anodes or cathodes for microbial desalination cells. Advances achieved during MIDES in the development of materials for anode and cathode application are listed. The second section is focussed on ion-exchange membranes for microbial desalination cells. General considerations for the use of these membranes are reported as well as key parameters. Finally, advances in ion-exchange membrane development, in terms of antifouling and their performance in desalination trials, achieved during the MIDES project, are reported.

scholarly journals The Effect of an Intermediate Layer on the Determination of Transport Numbers in Ion Exchange Membrane.

1985 ◽  
Vol 39a ◽  
pp. 279-286 ◽  
Author(s):  
P. Forssell ◽  
K. Kontturi ◽  
A. Ekman ◽  
Ingmar Persson ◽  
Francesco Salvatore
Keyword(s):  
Ion Exchange ◽  
Intermediate Layer ◽  
Ion Exchange Membrane ◽  
Transport Numbers ◽  
Exchange Membrane
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