Single and Coorperative Bauxite Bioleaching by Silicate Bacteria

Bioleaching of Heavy Metals by Sulfur Oxidizing Bacteria: A Review

Bioleaching, a novel biotechnological process, is used to eliminate heavy metals from contaminated sediments by acidification as well as solubilization of heavy metals. Metals from poor-quality ore and mineral compounds are removed by Bioleaching process, which is simple and low cost effective technology. Acidophilic sulfur oxidizing bacteria (Acidithiobacillus ferrooxidans, Acidithiobacillus t...

PCR-mediated detection of acidophilic, bioleaching-associated bacteria.

The detection of acidophilic microorganisms from mining environments by culture methods is time consuming and unreliable. Several PCR approaches were developed to amplify small-subunit rRNA sequences from the DNA of six bacterial phylotypes associated with acidic mining environments, permitting the detection of the target DNA at concentrations as low as 10 fg.

Peculiarities of Adhesion and Bioleaching of Pyrite by New Isolated Leptospirillum Spp. Bacteria

Leptospirillum sp. str. ZC isolated from bioleaching pulp of zinc concentrate is capable of oxidizing Fe (II) with the optimal temperature of 37oC. In pure culture bacteria is unable to oxidize pyrite, however, its growth together with sulfur oxidizing A.albertensis str.SO-2 significantly enhances the efficiency of pyrite bioleaching. The correlation between pyrite biooxidation and adhesion of ...

Bioleaching of Copper from Low-Grade Ore Using Isolated Bacteria and Defined Mixed Cultures

Bioleaching genomics

Mineral ores are full of metals, some very precious – but how to extract them? The Hamersley mines in the Pilbara in Western Australia contain such rich iron ore that it can almost be welded as it comes out of the ground. Traditionally, metals are extracted by ‘smelting’ or pyrometallurgy, the thermal treatment of minerals and metallurgical ores and concentrates to bring about physical and chem...