Zinc recovery from bioleachate using a microbial electrolysis cell and comparison with selective precipitation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F23%3A00131805" target="_blank" >RIV/00216224:14310/23:00131805 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3389/fmicb.2023.1238853" target="_blank" >https://doi.org/10.3389/fmicb.2023.1238853</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3389/fmicb.2023.1238853" target="_blank" >10.3389/fmicb.2023.1238853</a>
Alternative languages
Result language
angličtina
Original language name
Zinc recovery from bioleachate using a microbial electrolysis cell and comparison with selective precipitation
Original language description
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 -100mV vs. Ag/AgCl (3M 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(-1). For comparison, Zn recovery from zinc sulfate solution resulted in a Zn recovery efficiency of 100 +/- 0% and an energy consumption of 0.70 kWh kg(-1). Furthermore, selective metal precipitation of the bioleachate was performed. Individual metals were almost completely precipitated from the bioleachate at pH 5 (Al), pH 7 (Zn and Fe), and pH 9 (Mg and Mn).
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10608 - Biochemistry and molecular biology
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Frontiers in Microbiology
ISSN
1664-302X
e-ISSN
1664-302X
Volume of the periodical
14
Issue of the periodical within the volume
August 2023
Country of publishing house
CH - SWITZERLAND
Number of pages
11
Pages from-to
1-11
UT code for WoS article
001058992900001
EID of the result in the Scopus database
2-s2.0-85169617844