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Electrodialysis with Bipolar Membranes for the Generation of NaOH and HCl Solutions from Brines: An Inter-Laboratory Evaluation of Thin and Ultrathin Non-Woven Cloth-Based Ion-Exchange Membranes

The SEArcularMINE project aims to recover critical raw materials (CRMs) from brines from saltworks, thus facing a CRM shortage within Europe. To promote a fully circular scheme, the project valorises concentrated brines using electrodialysis with bipolar membranes (EDBM) to generate the required amo...

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Autores principales: León, Tamara, Abdullah Shah, Syed, López, Julio, Culcasi, Andrea, Jofre, Lluis, Cipollina, Andrea, Cortina, José Luis, Tamburini, Alessandro, Micale, Giorgio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9786922/
https://www.ncbi.nlm.nih.gov/pubmed/36557111
http://dx.doi.org/10.3390/membranes12121204
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author León, Tamara
Abdullah Shah, Syed
López, Julio
Culcasi, Andrea
Jofre, Lluis
Cipollina, Andrea
Cortina, José Luis
Tamburini, Alessandro
Micale, Giorgio
author_facet León, Tamara
Abdullah Shah, Syed
López, Julio
Culcasi, Andrea
Jofre, Lluis
Cipollina, Andrea
Cortina, José Luis
Tamburini, Alessandro
Micale, Giorgio
author_sort León, Tamara
collection PubMed
description The SEArcularMINE project aims to recover critical raw materials (CRMs) from brines from saltworks, thus facing a CRM shortage within Europe. To promote a fully circular scheme, the project valorises concentrated brines using electrodialysis with bipolar membranes (EDBM) to generate the required amounts of reactants (i.e., acids and bases). Regarding the performances of new non-woven cloth ion-exchange membranes (Suez): (i) an ultra-thin non-woven polyester cloth and (ii) a thin polypropylene cloth acting as the support structures were assessed. Additionally, the anion layer includes a catalyst to promote the water dissociation reaction. The effect of current density (100, 200, and 300 A m(−2)) on the performance of two combinations of membranes in an inter-laboratory exercise using 2 M NaCl was evaluated. According to statistical analysis ANOVA, there was an agreement on the results obtained in both laboratories. NaOH/HCl solutions up to 0.8 M were generated working at 300 A m(−2) using both combinations of membranes. Regarding the performance parameters, stack set-ups incorporating thin polypropylene membranes showed lower specific energy consumption (SEC) and higher specific productivity (SP) than ultra-thin polypropylene ones. Hence, for ultra-thin polypropylene membranes, SEC was reported to be between 2.18 and 1.69 kWh kg(−1)(NaOH) and SP between 974 and 314 kg m(−2) y(−1).
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spelling pubmed-97869222022-12-24 Electrodialysis with Bipolar Membranes for the Generation of NaOH and HCl Solutions from Brines: An Inter-Laboratory Evaluation of Thin and Ultrathin Non-Woven Cloth-Based Ion-Exchange Membranes León, Tamara Abdullah Shah, Syed López, Julio Culcasi, Andrea Jofre, Lluis Cipollina, Andrea Cortina, José Luis Tamburini, Alessandro Micale, Giorgio Membranes (Basel) Article The SEArcularMINE project aims to recover critical raw materials (CRMs) from brines from saltworks, thus facing a CRM shortage within Europe. To promote a fully circular scheme, the project valorises concentrated brines using electrodialysis with bipolar membranes (EDBM) to generate the required amounts of reactants (i.e., acids and bases). Regarding the performances of new non-woven cloth ion-exchange membranes (Suez): (i) an ultra-thin non-woven polyester cloth and (ii) a thin polypropylene cloth acting as the support structures were assessed. Additionally, the anion layer includes a catalyst to promote the water dissociation reaction. The effect of current density (100, 200, and 300 A m(−2)) on the performance of two combinations of membranes in an inter-laboratory exercise using 2 M NaCl was evaluated. According to statistical analysis ANOVA, there was an agreement on the results obtained in both laboratories. NaOH/HCl solutions up to 0.8 M were generated working at 300 A m(−2) using both combinations of membranes. Regarding the performance parameters, stack set-ups incorporating thin polypropylene membranes showed lower specific energy consumption (SEC) and higher specific productivity (SP) than ultra-thin polypropylene ones. Hence, for ultra-thin polypropylene membranes, SEC was reported to be between 2.18 and 1.69 kWh kg(−1)(NaOH) and SP between 974 and 314 kg m(−2) y(−1). MDPI 2022-11-29 /pmc/articles/PMC9786922/ /pubmed/36557111 http://dx.doi.org/10.3390/membranes12121204 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
León, Tamara
Abdullah Shah, Syed
López, Julio
Culcasi, Andrea
Jofre, Lluis
Cipollina, Andrea
Cortina, José Luis
Tamburini, Alessandro
Micale, Giorgio
Electrodialysis with Bipolar Membranes for the Generation of NaOH and HCl Solutions from Brines: An Inter-Laboratory Evaluation of Thin and Ultrathin Non-Woven Cloth-Based Ion-Exchange Membranes
title Electrodialysis with Bipolar Membranes for the Generation of NaOH and HCl Solutions from Brines: An Inter-Laboratory Evaluation of Thin and Ultrathin Non-Woven Cloth-Based Ion-Exchange Membranes
title_full Electrodialysis with Bipolar Membranes for the Generation of NaOH and HCl Solutions from Brines: An Inter-Laboratory Evaluation of Thin and Ultrathin Non-Woven Cloth-Based Ion-Exchange Membranes
title_fullStr Electrodialysis with Bipolar Membranes for the Generation of NaOH and HCl Solutions from Brines: An Inter-Laboratory Evaluation of Thin and Ultrathin Non-Woven Cloth-Based Ion-Exchange Membranes
title_full_unstemmed Electrodialysis with Bipolar Membranes for the Generation of NaOH and HCl Solutions from Brines: An Inter-Laboratory Evaluation of Thin and Ultrathin Non-Woven Cloth-Based Ion-Exchange Membranes
title_short Electrodialysis with Bipolar Membranes for the Generation of NaOH and HCl Solutions from Brines: An Inter-Laboratory Evaluation of Thin and Ultrathin Non-Woven Cloth-Based Ion-Exchange Membranes
title_sort electrodialysis with bipolar membranes for the generation of naoh and hcl solutions from brines: an inter-laboratory evaluation of thin and ultrathin non-woven cloth-based ion-exchange membranes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9786922/
https://www.ncbi.nlm.nih.gov/pubmed/36557111
http://dx.doi.org/10.3390/membranes12121204
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