Unlocking the potential of sustainable bioleaching: evaluating microbially induced metal recovery in copper-bearing black shales

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10499677" target="_blank" >RIV/00216208:11310/25:10499677 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=bC8y8fY_gD" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=bC8y8fY_gD</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.mineng.2025.109555" target="_blank" >10.1016/j.mineng.2025.109555</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Unlocking the potential of sustainable bioleaching: evaluating microbially induced metal recovery in copper-bearing black shales

Popis výsledku v původním jazyce

Some of deposits parameters, such as lower grade or peculiar composition (i.e. refractory phases, organic compounds) hinder their effective processing for metal recovery. However, bioleaching-based methods could support metal extraction from materials showing either poor metal content or complex mineralogy. In this study, two distinctly different samples of Kupferschiefer shale (LG-with low copper content, HG-organic-rich with high copper content) were examined in terms of metal bioleaching using two bacteria: Acidithiobacillus thiooxidans and Pseudomonas fluorescens. For LG sample, activity of P. fluorescens supports high extraction of Cu and Mo, while A. thiooxidans supports As extraction. For HG sample, activity of A. thiooxidans and P. fluorescens resulted in poor copper recovery of 1.8% and 7.26%, respectively. Alteration on shale surfaces were specific to the applied microorganism, revealing different features of post-leaching sulfides.

Název v anglickém jazyce

Unlocking the potential of sustainable bioleaching: evaluating microbially induced metal recovery in copper-bearing black shales

Popis výsledku anglicky

Some of deposits parameters, such as lower grade or peculiar composition (i.e. refractory phases, organic compounds) hinder their effective processing for metal recovery. However, bioleaching-based methods could support metal extraction from materials showing either poor metal content or complex mineralogy. In this study, two distinctly different samples of Kupferschiefer shale (LG-with low copper content, HG-organic-rich with high copper content) were examined in terms of metal bioleaching using two bacteria: Acidithiobacillus thiooxidans and Pseudomonas fluorescens. For LG sample, activity of P. fluorescens supports high extraction of Cu and Mo, while A. thiooxidans supports As extraction. For HG sample, activity of A. thiooxidans and P. fluorescens resulted in poor copper recovery of 1.8% and 7.26%, respectively. Alteration on shale surfaces were specific to the applied microorganism, revealing different features of post-leaching sulfides.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Minerals Engineering

ISSN

0892-6875

e-ISSN

1872-9444

Svazek periodika

232

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

17

Strana od-do

109555

Kód UT WoS článku

001524781700005

EID výsledku v databázi Scopus

2-s2.0-105009435669