Immobilization of arsenite and ferric iron by Acidithiobacillus ferrooxidans and its relevance to acid mine drainage

Article Abstract:

Research demonstrates that Acidithiobacillus ferrooxidans tolerates arsenic as well as immobilizes arsenic from acid waters containing arsenic. Data show that arsenite coprecipitates with schwertmannite, which process removes arsenite from contaminated waters. Furthermore, A. ferrooxidans mediates coprecipitation of arsenite with ferric iron.

Analysis, Microbial metabolism, Arsenic compounds, Bioremediation, Precipitation (Chemistry), Water acidification, Acid water pollution

---

Diversity of microorganisms in Fe-As-rich acid mine drainage waters of Carnoules, France

Article Abstract:

A study was conducted on the diversity of microorganisms present in the acid waters originating from the Carnoules mine tailings which contain high concentrations of dissolved arsenic, iron and sulphate. It was observed that the bacterial diversity was low in Fe-As-rich acid mine drainage waters, in comparison with unpolluted water.

Microorganisms, Acid mine drainage

---

Autecology of an arsenite chemolithotroph: sulfide constraints on function and distribution in a geothermal spring

Article Abstract:

As(III) oxidation in Dragon Spring is reexamined in order to assess the potential for As(III) chemolithotrophs to inhabit the geothermal feature. The findings have shown that [H.sub.2]S is a potent inhibitor of As(III) oxidation and will affect the opportunities and population distribution of As(III) chemolithotrophs.

Usage, Polymerase chain reaction, Oxidation-reduction reaction, Oxidation-reduction reactions, Arsenic, Chemical properties

Similar abstracts:

• Abstracts: The isolation of mutagen-sensitive nuv mutants of Aspergillus nidulans and their effects on mitotic recombination
• Abstracts: Inhibition of Listeria monocytogenes by Lactobacillus bavaricus MN in beef systems at refrigeration temperatures
• Abstracts: Conservation of ornamental stone by Myxococcus xanthus-induced carbonate biomineralization. Precipitation of barite by Myxococcus xanthus: possible implications for the biogeochemical cycle of barium
• Abstracts: Production of antibacterial compounds and biofilm formation by Roseobacter species are influenced by culture conditions
• Abstracts: Microbial utilization of free and clay-bound insecticidal toxins from Bacillus thuringiensis and their retention of insecticidal activity after incubation with microbes

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.