Desalination of brackish water using a microbial desalination cell: Analysis of the electrochemical behaviour

Ramírez-Moreno, M. and Esteve-Núñez, A. and Ortiz, J.M. (2021) Desalination of brackish water using a microbial desalination cell: Analysis of the electrochemical behaviour. Electrochimica Acta, 388. p. 138570. ISSN 00134686

Archive (Postprint version) 1-s2.0-S0013468621008604-main.pdf - Accepted Version Restricted to Registered users only (due to embargoed access stablished by journals) until 15 May 2023. Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (2430Kb) | Request a copy

Abstract

A microbial desalination cell (MDC) is a microbial fuel cell (MFC) integrated with an electrodialysis (ED) cell in the same device to simultaneously treat wastewater, desalinate brackish or seawater, and produce electric energy. Most previously reported studies used oxygen reduction as the primary cathodic reaction. In contrast, we have explored brackish water desalination (7 g L−1) and energy production using a laboratory MDC system (cross-section 100 cm2, batch mode) and ferricyanide as the catholyte. Furthermore, a rational explanation of desalination performance when using a catholyte is presented, and, additionally, the impact of producing electrical energy on desalination performance is discussed. Interestingly, conductivity variation in the saline chamber can be used to predict electrochemical performance. In summary, this study provides the basis for the development, design, and optimisation of low-energy desalination using MDC technology.

Item Type:	Article
Additional Information:	Appendix. Supplementary materials https://ars.els-cdn.com/content/image/1-s2.0-S0013468621008604-mmc1.docx
Uncontrolled Keywords:	Microbial desalination cell; Waste water treatment; Brackish water; Sustainable desalination
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering T Technology > TD Environmental technology. Sanitary engineering T Technology > TP Chemical technology
Depositing User:	Belén Barroeta
Date Deposited:	03 Nov 2021 12:00
Last Modified:	03 Nov 2021 12:00
URI:	http://eprints.imdea-agua.org:13000/id/eprint/1252

Actions (login required)

View Item