In this article, we provide a critical review on the occurrence, formation, structure and stability
of schwertmannite–an enigmatic Fe (III) oxyhydroxy-sulfate mineral that is of widespread …

Heap leaching is a well-established extractive metallurgical technology enabling the
economical processing of various kinds of low-grade ores, which could not otherwise be …

The extraction of mineral resources requires access through underground workings, or open
pit operations, or through drillholes for solution mining. Additionally, mineral processing can …

Phenotypic and genotypic analysis was carried out on four iron-and sulfur-oxidizing
acidophilic bacteria (the “NO-37 group”) isolated from different parts of the world. 16S rRNA …

Background Terrestrial hot spring settings span a broad spectrum of physicochemistries.
Physicochemical parameters, such as pH and temperature, are key factors influencing …

Bioleaching of metal sulfides is an interfacial process where biofilm formation is considered
to be important in the initial steps of this process. Among the factors regulating biofilm …

An acid mine drainage (pH 2.5–2.7) stream biofilm situated 250 m below ground in the low-
temperature (6–10° C) Kristineberg mine, northern Sweden, contained a microbial …

A two-stage closed downflow hanging sponge (DHS) reactor was used as a post-treatment
to prevent methane being emitted from upflow anaerobic sludge blanket (UASB) effluents …

Autotrophic acidophilic iron-and sulfur-oxidizing bacteria of the genus Acidithiobacillus
constitute a heterogeneous taxon encompassing a high degree of diversity at the …

Acidithiobacillus ferrivorans SS3 is a psychrotolerant acidophile capable of growth in the
range of 5° to 30° C (optimum,≈ 25° C). It gains energy from the oxidation of ferrous iron …