Bacterially Induced Mineralization of Jarosite and Schwertmannite Assisted by a Photochemical Pathway

Autor: Xin Wang, Anhuai Lu, Yan Li, Yunhua Yan, Changqiu Wang
Rok vydání: 2012
Předmět:
Zdroj: Geomicrobiology Journal. 29:206-212
ISSN: 1521-0529
0149-0451
DOI: 10.1080/01490451.2011.558559
Popis: This study investigated Acidithiobacillus ferrooxidans induced mineral precipitation under the photocatalysis and non-photocatalysis of natural sphalerite. The bacterial activity and the Fe2+ concentrations were found to be remarkably influenced by the photocatalysis of natural sphalerite. As a result, K-jarosite was only detected in the photocatalytic treatment, which was estimated to be the result of higher bacteria activity under sphalerite photocatalysis; yet, NH4-jarosite formed in both treatments. Besides, the minerals in photocatalytic treatment had better crystallinity than those in non-photocatalytic treatment.
Databáze: OpenAIRE
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