Bio-Oxidation Process of a Polymetallic Sulfide Mineral Concentrate for Silver Recovery

Minerals, Journal Year: 2025, Volume and Issue: 15(3), P. 261 - 261

Published: March 2, 2025

In this research, the bio-oxidative capacity of three acidophilic bacterial strains (Acidithiobacillus thiooxidans, Leptospirillum ferriphilum, and an unidentified native consortium) are analyzed through dissolution cyanicidal species in a polymetallic sulfide mineral mainly composed pyrite, quartz, sphalerite, chalcocite. The main objective is reduction amount sodium cyanide used for recovery Au Ag improvement economic environmental benefits processing these minerals. Additionally, 23 factorial experimental design, effect pH pulp density (%) on bio-oxidation evaluated. results reveal that process concentrate has been favored at low values density, favoring Cu above all dissolution, which form stable complexes with cyanide, leading to excessive consumption. Therefore, = 1.0 10%, catalytic activity Acidithiobacillus thiooxidans achieves 73.30% Cu, 19.92% Pb, 57.37% Zn, 25.17% Fe flask level 83.18% 12.18% 55.36% 40.98% bioreactor level, allowing 89.5% 80.4% Ag, respectively.

Language: Английский

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Advances in Extremophile Research: Biotechnological Applications through Isolation and Identification Techniques

Life, Journal Year: 2024, Volume and Issue: 14(9), P. 1205 - 1205

Published: Sept. 23, 2024

Extremophiles, organisms thriving in extreme environments such as hot springs, deep-sea hydrothermal vents, and hypersaline ecosystems, have garnered significant attention due to their remarkable adaptability biotechnological potential. This review presents recent advancements isolating characterizing extremophiles, highlighting applications enzyme production, bioplastics, environmental management, space exploration. The unique biological mechanisms of extremophiles offer valuable insights into life's resilience potential uses industry astrobiology.

Language: Английский

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Evaluation of functional characteristics of Acidithiobacillus thiooxidans microencapsulated in gum arabic by spray-drying as biotechnological tool in the mining industry

Archives of Microbiology, Journal Year: 2024, Volume and Issue: 206(7)

Published: June 22, 2024

Language: Английский

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Study of the impurity dissolution kinetics, rheological characterization, and hydrodynamic aspects during the bioleaching of iron ore pulp in a bioreactor

Korea-Australia Rheology Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 9, 2024

Language: Английский

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Linked variations of bioleaching performance, extracellular polymeric substances (EPS) and passivation layer in the uranium bacterial-leaching system

Journal of Radioanalytical and Nuclear Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 7, 2024

Language: Английский

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