Fouling propensity in reverse electrodialysis operated with hypersaline brine
(2021) In Energy 228.- Abstract
The impact of fouling on the performance of Reverse Electrodialysis operated with highly concentrated brine is a poorly investigated area. In this work, the fouling propensity and stability of Ion Exchange Membranes (IEMs), developed by Fujifilm Manufacturing Europe BV (The Netherlands), is investigated under the condition of seawater and brine. The fouling propensity of the IEMs was depicted by the determination of the Gibbs energy barrier of based-on the Classical Nucleation along with the Theoretical modeling of heterogeneous nucleation as a function of electrochemical (contact angle, permittivity, charge density) and morphological (roughness) membrane properties validated by CaCO3 precipitation. Results indicate that... (More)
The impact of fouling on the performance of Reverse Electrodialysis operated with highly concentrated brine is a poorly investigated area. In this work, the fouling propensity and stability of Ion Exchange Membranes (IEMs), developed by Fujifilm Manufacturing Europe BV (The Netherlands), is investigated under the condition of seawater and brine. The fouling propensity of the IEMs was depicted by the determination of the Gibbs energy barrier of based-on the Classical Nucleation along with the Theoretical modeling of heterogeneous nucleation as a function of electrochemical (contact angle, permittivity, charge density) and morphological (roughness) membrane properties validated by CaCO3 precipitation. Results indicate that Cation Exchange Membranes (CEM) are more susceptible to the scaling due to the reduced energy barrier of heterogeneous nucleation. FTIR-ATR analysis on six months-aged membranes samples indicated a partial modification in the chemical structure of Anion Exchange Membranes (AEM) induced by the organic fouling associated with humic substances. The tensile tests demonstrated substantial mechanical stability of IEMs. Lab-scale RED tests operated with artificial brine over 30 days showed a significant increase in pressure drop through feed channels due to significant colloidal fouling along with a 23% reduction of maximum gross power density with consequent decrease of net power density.
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- author
- Santoro, Sergio ; Tufa, Ramato Ashu ; Avci, Ahmet Halil LU ; Fontananova, Enrica ; Di Profio, Gianluca and Curcio, Efrem
- publishing date
- 2021-08-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Brine, Fouling, Ion exchange membranes, Reverse electrodialysis, Salinity gradient power
- in
- Energy
- volume
- 228
- article number
- 120563
- pages
- 12 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85104672414
- ISSN
- 0360-5442
- DOI
- 10.1016/j.energy.2021.120563
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © 2021 Elsevier Ltd
- id
- 070f7c96-7564-483b-bdc2-2870bc9bc520
- date added to LUP
- 2022-05-13 10:46:39
- date last changed
- 2022-05-13 11:31:21
@article{070f7c96-7564-483b-bdc2-2870bc9bc520, abstract = {{<p>The impact of fouling on the performance of Reverse Electrodialysis operated with highly concentrated brine is a poorly investigated area. In this work, the fouling propensity and stability of Ion Exchange Membranes (IEMs), developed by Fujifilm Manufacturing Europe BV (The Netherlands), is investigated under the condition of seawater and brine. The fouling propensity of the IEMs was depicted by the determination of the Gibbs energy barrier of based-on the Classical Nucleation along with the Theoretical modeling of heterogeneous nucleation as a function of electrochemical (contact angle, permittivity, charge density) and morphological (roughness) membrane properties validated by CaCO<sub>3</sub> precipitation. Results indicate that Cation Exchange Membranes (CEM) are more susceptible to the scaling due to the reduced energy barrier of heterogeneous nucleation. FTIR-ATR analysis on six months-aged membranes samples indicated a partial modification in the chemical structure of Anion Exchange Membranes (AEM) induced by the organic fouling associated with humic substances. The tensile tests demonstrated substantial mechanical stability of IEMs. Lab-scale RED tests operated with artificial brine over 30 days showed a significant increase in pressure drop through feed channels due to significant colloidal fouling along with a 23% reduction of maximum gross power density with consequent decrease of net power density.</p>}}, author = {{Santoro, Sergio and Tufa, Ramato Ashu and Avci, Ahmet Halil and Fontananova, Enrica and Di Profio, Gianluca and Curcio, Efrem}}, issn = {{0360-5442}}, keywords = {{Brine; Fouling; Ion exchange membranes; Reverse electrodialysis; Salinity gradient power}}, language = {{eng}}, month = {{08}}, publisher = {{Elsevier}}, series = {{Energy}}, title = {{Fouling propensity in reverse electrodialysis operated with hypersaline brine}}, url = {{http://dx.doi.org/10.1016/j.energy.2021.120563}}, doi = {{10.1016/j.energy.2021.120563}}, volume = {{228}}, year = {{2021}}, }