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Naslov:Bioleaching process for copper extraction from waste in alkaline and acid medium
Avtorji:ID Ristović, Ivica (Avtor)
ID Štyriaková, Darina (Avtor)
ID Štyriakova, Iveta (Avtor)
ID Šuba, Jaroslav (Avtor)
ID Širadović, Emilija (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://www.mdpi.com/2075-163X/12/1/100
 
.pdf PDF - Predstavitvena datoteka, prenos (3,29 MB)
MD5: 1F5E602480EFD772A8042E1E9740BB20
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:Flotation wastes are becoming a valuable secondary raw material and source of many metals and semimetals worldwide with the possibilities of industrial recycling. The flotation tailings contain oxide and sulfide minerals that have not been sufficiently stabilized and form acidic mine waters, which in turn contaminate groundwater, rivers, and reservoi6sediments. An effective way to recycle these mine wastes is to recover the metals through leaching. While the focus is on acid bioleaching by iron- and sulfur-oxidizing bacteria, alkaline leaching, and the removal of iron- containing surface coatings on sulfide minerals contribute significantly to the overall environmental efficiency of leaching. For this study, static and percolate bioleaching of copper from flotation waste at the Bor copper mine in Serbia was investigated in alkaline and then acidic environments. The aim of the study was to verify the effect of alkaline pH and nutrient stimulation on the bioleaching process and element extraction. A sample was taken from a mine waste site, which was characterized by XRF analyses. The concentration of leached copper was increased when copper oxide minerals dissolved during alkaline bioleaching. The highest copper yield during alkaline bioleaching was achieved after 9 days and reached 67%. The addition of nutrients in acidic medium enhanced the degradation of sulfide minerals and increased Cu recovery to 74%, while Fe and Ag recoveries were not significantly affected. Combined bioleaching with alkaline media and iron- and sulfur-oxidizing bacteria in acidic media should be a good reference for ecological Cu recovery from copper oxide and sulfide wastes.
Ključne besede:copper, alkaline, acidic bioleaching, secondary raw materials, open access
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:15.01.2022
Založnik:MDPI AG
Leto izida:2022
Št. strani:str. 1-14
Številčenje:Vol. 12, no. 1
PID:20.500.12556/DiRROS-15840 Novo okno
UDK:620.1/.2
ISSN pri članku:2075-163X
DOI:10.3390/min12010100 Novo okno
COBISS.SI-ID:97131267 Novo okno
Avtorske pravice:© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
Opomba:Nasl. z nasl. zaslona; Opis vira z dne 11. 2. 2022;
Datum objave v DiRROS:05.05.2023
Število ogledov:791
Število prenosov:405
Metapodatki:XML DC-XML DC-RDF
:
RISTOVIĆ, Ivica, ŠTYRIAKOVÁ, Darina, ŠTYRIAKOVA, Iveta, ŠUBA, Jaroslav in ŠIRADOVIĆ, Emilija, 2022, Bioleaching process for copper extraction from waste in alkaline and acid medium. Minerals [na spletu]. 2022. Vol. 12, no. 1, p. 1–14. [Dostopano 17 marec 2025]. DOI 10.3390/min12010100. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=15840
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Gradivo je del revije

Naslov:Minerals
Skrajšan naslov:Minerals
Založnik:MDPI AG
ISSN:2075-163X
COBISS.SI-ID:519985177 Novo okno

Gradivo je financirano iz projekta

Financer:Drugi - Drug financer ali več financerjev
Številka projekta:18248
Naslov:Zero waste recovery of copper wastes in the ESEE region
Akronim:RIS-CuRE

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:baker, alkalno, kislo biološko izpiranje, sekundarne surovine, odprti dostop


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