Biogeochemical Properties of Bacteriogenic Iron Oxides

@article{Ferris2005BiogeochemicalPO,
  title={Biogeochemical Properties of Bacteriogenic Iron Oxides},
  author={F. Grant Ferris},
  journal={Geomicrobiology Journal},
  year={2005},
  volume={22},
  pages={79 - 85}
}
  • F. G. Ferris
  • Published 1 April 2005
  • Chemistry
  • Geomicrobiology Journal
Bacteriogenic iron oxides (BIOS) are composite materials that consist of intact and partly degraded remains of bacterial cells intermixed with variable amounts of poorly ordered hydrous ferric oxide (HFO) minerals. They form in response to chemical or bacterial oxidation of Fe2+, which gives rise to Fe3+. Once formed, Fe3+ tends to undergo hydrolysis to precipitate in association with bacterial cells. In acidic systems where the chemical oxidation of Fe2+ is slow, bacteria are capable of… 

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TLDR
A high degree of bacterial group masking and a similarity between the BIOS and goethite surface reactivity was suggested and an understanding of the BIOS surface chemical heterogeneity and inherent proton and metal binding capacity was obtained.

Continuum between Sorption and Precipitation of Fe(III) on Microbial Surfaces

Bacteria are a widespread, abundant, geochemically reactive component of aquatic environments. However, their role in the formation of secondary reactive surface phases such as iron oxides or in the

Accumulation of Metals by Bacteriogenic Iron Oxides in a Subterranean Environment

Bacteriogenic iron oxides (BIOS) and groundwater samples were collected from 66 to 432 m underground at the Aspo Hard Rock Laboratory near Oskarshamn, Sweden. The twisted, iron oxide-encrusted stalks

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TLDR
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TLDR
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