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Inhibition of iron(II) oxidation by arsenic(III,V) inThiobacillus ferrooxidans: Effects on arsenopyrite bioleaching

✍ Scribed by Martin Mandl; David Hrbáč; Hana Dočekalová


Publisher
Springer Netherlands
Year
1996
Tongue
English
Weight
320 KB
Volume
18
Category
Article
ISSN
0141-5492

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✦ Synopsis


The more complex inhibitory effect of As(m) than that of As(V) on Fe(n) oxidation in a non-growing Thiobacillus ferrooxidans suspension was demonstrated. The yield of arsenic bioextraction from a chalcopyrite concentrate was not affected by arsenic inhibition due to the low sensitivity of the strain to arsenic ions, supported by a spontaneous conversion of As(II1) to As(V).