Non-ferrous metals bioleaching from pyrometallurgy copper slag using spent medium of different fungal species
This study aimed to compare the recovery of non-ferrous metals from a pyrometallurgy copper slag containing 1.93 % Zn, 0.36 % Cu, and 0.09 % Co by spent medium bioleaching of fungi Aspergillus Niger and Penicillium ochrochloron. The fungal species were cultivated for a week; microbial biomass was separated, and the shake-flask technique carried out the leaching. Factors such as temperature, pulp density, the organic acids ratio and the amount of added acidity strongly affected the extraction of the non-ferrous metals from copper slag.
Authors
- Plamen Georgiev (ORCID: https://orcid.org/0009-0006-4655-9039)
- Ralitsa Ilieva (ORCID: https://orcid.org/0000-0002-1618-6394)
- Mihail Iliev (ORCID: https://orcid.org/0000-0001-8441-8831)
- Marina Nicolova (ORCID: https://orcid.org/0000-0002-4611-8755)
- Irena Spasova (ORCID: https://orcid.org/0009-0009-6728-1701)
Institutions
- University of Mining and Geology "Saint Ivan Rilski" (BG)
Publication Details
- Published
- 2025-01-01
- DOI
- https://doi.org/10.5937/imprc25220g
- Primary Topic
- Metal Extraction and Bioleaching
- Type
- article
- Field-Weighted Citation Impact
- 0.00