ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
To enhance our understanding of effects of microbially mediated pyrite dissolution and theinfluence parameters such as varied metabolism and crystallographic orientation of pyrite surfacessome dissolution experiments were performed. Microbial etching experiments on pyrite surfaces ofdifferent orientation, including {111} and {210} were devised. The experiments were performedusing two strains of thermophilic Archaea (Sulfolobus metallicus, Metallosphaera sedula).Epifluorescence microscopy observations showed that the strains attach to the mineral surface.Studies with Scanning Electron Microscopy (SEM) showed cell attachment and etching effects afterone week of incubation. Surface alteration produced structures following crystallographicorientation up to several 10 μm in size. For all incubated pyrite samples it became apparent thatsurface alteration was more pronounced with M. sedula than with S. metallicus
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.20-21.350.pdf
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