Leaching of iron, either as an impurity to be removed or as a metal to be recovered, requires
a different approach than that of the oxidative leaching that dominates biohydrometallurgy of …

Five moderately thermophilic iron-oxidizing bacteria, including representative strains of the
three classified species (Sulfobacillus thermosulfidooxidans, Sulfobacillus acidophilus, and …

The present work describes a research approach to the anaerobic bioleaching of Fe (III)
ores. Three strains (Serratia fonticola, Aeromonas hydrophila and Clostridium …

Iron (Fe) has long been a recognized physiological requirement for life, yet for many
microorganisms that persist in water, soils and sediments, its role extends well beyond that …

Bacterial dissimilatory iron reduction is self-inhibited by the production of ferrous [Fe (II)] iron
resulting in diminished iron reduction as Fe (II) accumulates. Experiments were conducted to …

An oxidized lateritic ore which contained 0.8%(by weight) copper was bioleached in pH-and
temperature-controlled stirred reactors under acidic reducing conditions using pure and …

Redox reactions of iron in acidic environments are of economic and environmental
significance, for example, for the leaching of metal ores and for the formation of acid mine …

Industrial silicate-based minerals such as kaolins, feldspars and quartziferous sands often
contain impurities that lower their economic value and hinder their application in the ceramic …

Nickel laterites represent the major ore reserves of this base metal present in the
lithosphere. However, processing these ores by conventional technologies involves …

Iron is a metabolic requirement of living systems, yet iron is very insoluble in aerobic, neutral
environments. Therefore, the amount of iron in solution under these conditions is not …