PDF

Zinc recovery during refractory ore bioo

N. Marchevsky, M.S. Urbieta

2026enzincbioleachingbiooxidationgold recoveryindigenous consortia

Abstract

Language:

This study investigates the recovery of zinc and gold during the biooxidation of refractory ore using indigenous microbial consortia derived from acid mine drainage. The objective was to assess the effectiveness of two enrichment cultures—one iron oxidizing and one sulfur oxidizing—in enhancing metal recovery. Methodologically, the cultures were physiologically and molecularly characterized, revealing high 16S rRNA gene sequence similarity to known acidophiles such as Leptospirillum ferrooxidans and Acidithiobacillus species. The results demonstrated that the combined consortium achieved biooxidation of Hualilan ore, leading to a remarkable increase in gold recovery up to 96.42% under optimal conditions of low pH density in 1X medium. Additionally, effective zinc bioleaching was observed, reaching 86%, with enhanced recovery in cultures supplemented with iron. Kinetic studies indicated that recovery was constrained by diffusion processes through a jarosite layer rather than by chemical reaction rates. This recovery process not only enhances metal extraction but also presents an environmentally favorable method for ore treatment.

Download

Cite This Work

@article{2eb4261d-1a61-49d5-b62e-63f0a4101542,
  title={Zinc recovery during refractory ore bioo},
  author={N. Marchevsky and M.S. Urbieta},
  year={2026},
  language={en}
}
TY  - JOUR
TI  - Zinc recovery during refractory ore bioo
AU  - N. Marchevsky
AU  - M.S. Urbieta
PY  - 2026
LA  - en
ER  -

Similar Items

Leaching of Gold from Mobile Phone

2026enPDF

Challenges and opportunities in the recovery of gold from electronic waste

Mudila Dhanunjaya Rao, Kamalesh K. Singh

Rapid global technological development has resulted in increased production of electronic waste, which presents both challenges and opportunities in r

2023enPDF

Métallurgie générale

MBUYA MWASHI JOSUE, MUSENGA OMBA VENUS

Ce projet académique s'inscrit dans le cadre des études en métallurgie générale, visant à explorer les procédés d'extraction des métaux à partir de mi

2023frPDF

Biometallurgical Recovery of Metals from Waste Electrical and Electronic Equipment: a Review

Sadia Ilyas, Jae-chun Lee

The feasibility of biometallurgical processing for recovering heavy metals, precious metals, and rare earth elements from waste electrical and electro

2014enPDF

Metal Casting Processes

Unknown, Unknown

This chapter discusses metal casting processes, highlighting the diversity and common characteristics among them. The objective is to elucidate the fu

2023enPDF

The Nature of Solid Iron and Its Grain Structure

Unknown, Unknown

This study focuses on the fundamental characteristics of solid iron, which is predominantly composed of iron atoms and provides a basis for understand

2023enPDF