Electrodialysis in Water Treatment

Bernardes, Andréa Moura; Rodrigues, Marco Antônio Siqueira

doi:10.1007/978-3-642-40249-4_6

Cited by 10 publications

(7 citation statements)

References 32 publications

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“…As a result, desalination technologies such as electromembrane desalination have been developed to safeguard water security. Electromembrane desalination, which includes electrodialysis [2][3][4][5][6][7][8] and membrane capacitive deionization [9][10][11][12][13], uses ion exchange membranes (IEMs) to produce fresh water from brackish water. IEMs are membranes with charged groups which attract counter-ions and repel co-ions from ionic solutions.…”

Section: Introductionmentioning

confidence: 99%

Electrostatically-coupled graphene oxide nanocomposite cation exchange membrane

Alabi

Cseri

Hajaj

et al. 2020

Journal of Membrane Science

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We report the preparation of an electrostatically-coupled graphene oxide nanocomposite cation exchange membrane (CEM) based on sulfonic group containing graphene oxide (SGO) (45 wt % loading) and polyvinylidene fluoride (PVDF), where the ion exchange groups were provided by the SGO additive. SGO was prepared via the mixing of graphene oxide (GO) with a mixture derived from 3,4-dihydroxy-L-phenylalanine (L-DOPA) and poly(sodium 4-styrenesulfonate) (PSS). A mold-casting technique was developed to fabricate the free-standing nanocomposite CEM. The presence of sulfonic groups in the nanocomposite was confirmed with FTIR spectroscopy. Energy dispersive spectroscopy analysis showed the SGO was distributed across the entire membrane matrix, with minimal aggregation. The resultant SGO/PVDF nanocomposite CEM membrane demonstrated high hydrophilicity and high water uptake, but low swelling ratio. Furthermore, evaluation of the electrochemical properties of the nanocomposite CEM showed favorable ion exchange capacity (0.63 ± 0.08 meq/g), permselectivity (0.95 ± 0.04), and area resistance (2.8 ± 0.2 Ω cm 2 ). The nanocomposite CEM show good potential for use in electromembrane desalination applications.

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Section: Introductionmentioning

confidence: 99%

Electrostatically-coupled graphene oxide nanocomposite cation exchange membrane

Alabi

Cseri

Hajaj

et al. 2020

Journal of Membrane Science

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“…Properties of commercial IEMs used for ED 4,162 IEMs property Range IEC 1-3 meq/g Electrical resistance 1-15 Ωcm 2 drawbacks of incorporating the NMs into IEMs, the influence of NM shape and size, and their applicability to ED desalination are presented in the following sections of this review. Since there are other review articles and text books that cover the various topics on types of IEMs, [18][19][20] preparation of IEMs, 4,5,12,[20][21][22] functionalizing polymeric materials for IEMs, 18,20,23 characterization of IEMs, 4,5,19,20,24 and ED [2][3][4][5][25][26][27] the detailed information on these topics will not be covered here.…”

Section: Introductionmentioning

confidence: 99%

Review of nanomaterials-assisted ion exchange membranes for electromembrane desalination

et al. 2018

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In order to address the increasing demand for fresh water due to accelerated social and economic growth in the world, water treatment technologies, such as desalination, have been rapidly developed in attempts to safeguard water security. Electromembrane desalination processes, such as electrodialysis and membrane capacitive deionization, belong to a category of desalination technologies, which involve the removal of ions from ionic solutions with the use of electrically charged membranes termed ion exchange membranes. The challenges associated with ion exchange membranes have drawn the attention of many researchers, who have investigated various approaches to enhance their properties. The incorporation of nanomaterials is one of the popular approaches employed. Much research on nanomaterials incorporated ion exchange membranes was conducted for the purpose of fuel cell applications rather than electromembrane desalination. This review reports on the advances in nanomaterials incorporated ion exchange membranes applicable to desalination. The nanomaterials employed in ion exchange membranes fabrication include carbon nanotubes, graphene-based nanomaterials, silica, titanium (IV) oxide, aluminum oxide, zeolite, iron (II, III) oxide, zinc oxide, and silver. The aims of this article are to provide a snap shot of the current status of nanomaterials incorporation in ion exchange membranes, to assess the status of nanomaterials-facilitated ion exchange membranes research for electromembrane desalination, and to stimulate progress in this area.

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“…This method of water splitting cannot produce enough H 1 and OH 2 for resin regeneration due to its low efficiency for cationexchange membranes, and part of the created H 1 and OH 2 ions recombine before rejuvenating the resins. These limitations can be overcome by combining EDI with bipolar membranes (Bernardes, 2016).…”

Section: Figure (6) Principle Of Electro Dialysis (Ed)mentioning

confidence: 99%

Electrochemical Techniques Applied for Industrial Wastewater Treatment: A Review

Amin,

Elsayed

2023

Egypt. J. Chem.

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Electrochemical (EC) innovations for treating mechanical wastewater and potential methods for reusing and reusing this water have been portrayed. In conjunction with financial perspectives on water administration, issues relating to the standards and application of auxiliary and tertiary strategies are altogether inspected. Later improvements in strategies counting coagulation, adsorption, characteristic forms, oxidation, and layer partitions are highlighted since they may help in understanding current forms as well as their heightened for way better effectiveness and economics. This article dives profoundly into a later progression within the field of hydrodynamic cavitation, especially in terms of hardware plan, preparation improvement, and integration with other approaches. Both practicing chemical/environmental engineers and researchers in this subject are likely to discover the survey of later headways within the field of commercial wastewater treatment, reusing, and reuse advertised here to be accommodating. The paper gives an outline of electrochemical advances for mechanical wastewater treatment and investigates potential strategies for reusing and reusing water. It moreover addresses financial contemplations related to water administration.

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Electrodialysis in Water Treatment

Cited by 10 publications

References 32 publications

Electrostatically-coupled graphene oxide nanocomposite cation exchange membrane

Electrostatically-coupled graphene oxide nanocomposite cation exchange membrane

Review of nanomaterials-assisted ion exchange membranes for electromembrane desalination

Electrochemical Techniques Applied for Industrial Wastewater Treatment: A Review

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