Zinc recovery from bioleachate using a microbial electrolysis cell and comparison with selective precipitation.
bioleaching
metal recovery
microbial electrolysis cell
selective precipitation
zinc recovery
Journal
Frontiers in microbiology
ISSN: 1664-302X
Titre abrégé: Front Microbiol
Pays: Switzerland
ID NLM: 101548977
Informations de publication
Date de publication:
2023
2023
Historique:
received:
12
06
2023
accepted:
01
08
2023
medline:
4
9
2023
pubmed:
4
9
2023
entrez:
4
9
2023
Statut:
epublish
Résumé
Metal recycling is essential for strengthening a circular economy. Microbial leaching (bioleaching) is an economical and environmentally friendly technology widely used to extract metals from insoluble ores or secondary resources such as dust, ashes, and slags. On the other hand, microbial electrolysis cells (MECs) would offer an energy-efficient application for recovering valuable metals from an aqueous solution. In this study, we investigated a MEC for Zn recovery from metal-laden bioleachate for the first time by applying a constant potential of -100 mV vs. Ag/AgCl (3 M NaCl) on a synthetic wastewater-treating bioanode. Zn was deposited onto the cathode surface with a recovery efficiency of 41 ± 13% and an energy consumption of 2.55 kWh kg
Identifiants
pubmed: 37664121
doi: 10.3389/fmicb.2023.1238853
pmc: PMC10469928
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1238853Informations de copyright
Copyright © 2023 Spiess, Kucera, Vaculovic, Birklbauer, Habermaier, Sasiain Conde, Mandl and Haberbauer.
Déclaration de conflit d'intérêts
SS, CH, ASC, and MH were employed by K1-MET GmbH. LB was employed by Voestalpine Stahl GmbH. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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