Reverse electrodialysis (RED) is a promising technology to extract energy from salinity gradients, especially in the areas where concentrated brine and saline waters are available as feed streams. A first pilot-scale plant was recently built in Trapani (Italy), and tested with real brackish water and brine from saltworks. The present work focuses on the scale-up of the pilot plant, reaching more than 400 m2 of total membrane area installed and representing the largest operating RED plant so far reported in the literature. With a nominal power capacity of 1 kW, the pilot plant reached almost 700 W of power capacity using artificial brine and brackish water, while a 50% decrease in power output was observed when using real solutions. This reduction was likely due to the presence of non-NaCl ions in relatively large concentration, which negatively affected both the electromotive force and stack resistance. These results provide relevant and unique information for the RED process scale-up, representing the first step for the feasibility assessment of RED technology on large scale.

Tedesco, M., Cipollina, A., Tamburini, A., Micale, G. (2017). Towards 1 kW power production in a reverse electrodialysis pilot plant with saline waters and concentrated brines. JOURNAL OF MEMBRANE SCIENCE, 522, 226-236 [10.1016/j.memsci.2016.09.015].

Towards 1 kW power production in a reverse electrodialysis pilot plant with saline waters and concentrated brines

CIPOLLINA, Andrea
;
TAMBURINI, Alessandro;MICALE, Giorgio Domenico Maria
2017-01-01

Abstract

Reverse electrodialysis (RED) is a promising technology to extract energy from salinity gradients, especially in the areas where concentrated brine and saline waters are available as feed streams. A first pilot-scale plant was recently built in Trapani (Italy), and tested with real brackish water and brine from saltworks. The present work focuses on the scale-up of the pilot plant, reaching more than 400 m2 of total membrane area installed and representing the largest operating RED plant so far reported in the literature. With a nominal power capacity of 1 kW, the pilot plant reached almost 700 W of power capacity using artificial brine and brackish water, while a 50% decrease in power output was observed when using real solutions. This reduction was likely due to the presence of non-NaCl ions in relatively large concentration, which negatively affected both the electromotive force and stack resistance. These results provide relevant and unique information for the RED process scale-up, representing the first step for the feasibility assessment of RED technology on large scale.
2017
Tedesco, M., Cipollina, A., Tamburini, A., Micale, G. (2017). Towards 1 kW power production in a reverse electrodialysis pilot plant with saline waters and concentrated brines. JOURNAL OF MEMBRANE SCIENCE, 522, 226-236 [10.1016/j.memsci.2016.09.015].
File in questo prodotto:
File Dimensione Formato  
JMS_2017_RED-Exp-2_Tedesco et al..pdf

Solo gestori archvio

Descrizione: Articolo principale
Tipologia: Versione Editoriale
Dimensione 1.65 MB
Formato Adobe PDF
1.65 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Tedesco_etal_JMS2017.pdf

accesso aperto

Descrizione: Post print
Tipologia: Post-print
Dimensione 1.56 MB
Formato Adobe PDF
1.56 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/208134
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 179
  • ???jsp.display-item.citation.isi??? 164
social impact