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Fouling propensity in reverse electrodialysis operated with hypersaline brine

Santoro, Sergio ; Tufa, Ramato Ashu ; Avci, Ahmet Halil LU ; Fontananova, Enrica ; Di Profio, Gianluca and Curcio, Efrem (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
; ; ; ; and
publishing date
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}},
}