| HELÁNOVÁ, Šárka, Martin MANDL, Oldřich JANICZEK, Kevin HALLBERG, Pavel BOUCHAL a Alena ŠPANOVÁ. Bacterial pyrite oxidation under different metabolic states of bacteria. Acta Universitatis Palackianae Olomucensis. Olomouc, 2004, roč. 43S, 3.9.2004, s. 165-165. ISSN 0232-0061. |
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@article{566766,
author = {Helánová, Šárka and Mandl, Martin and Janiczek, Oldřich and Hallberg, Kevin and Bouchal, Pavel and Španová, Alena},
article_location = {Olomouc},
article_number = {3.9.2004},
keywords = {pyrite oxidation; Thiobacillus},
language = {eng},
issn = {0232-0061},
journal = {Acta Universitatis Palackianae Olomucensis},
title = {Bacterial pyrite oxidation under different metabolic states of bacteria},
volume = {43S},
year = {2004}
}
TY - JOUR
ID - 566766
AU - Helánová, Šárka - Mandl, Martin - Janiczek, Oldřich - Hallberg, Kevin - Bouchal, Pavel - Španová, Alena
PY - 2004
TI - Bacterial pyrite oxidation under different metabolic states of bacteria
JF - Acta Universitatis Palackianae Olomucensis
VL - 43S
IS - 3.9.2004
SP - 165-165
EP - 165-165
SN - 02320061
KW - pyrite oxidation
KW - Thiobacillus
N2 - Pyrite biooxidation is an important process in sulfide wastes and biohydrometallurgy resulting in environmental acidification. Induction of iron-oxidizing system in bacteria grown on sulfur seems to be an essential factor for pyrite oxidation. Electrochemical, proteomic and kinetic differences during bacterial pyrite oxidation by cultures of Acidithiobacillus ferooxidans grown on sulfur or iron were investigated. Based on electrochemical parameters of pyrite electrode, which was described for arsenopyrite oxidation studies [1], iron-oxidizing bacteria were able to oxidize pyrite since the beginning. Sulfur-oxidizing A. ferrooxidans provided rather reductive conditions at the beginning and was not able to oxidize pyrite immediately. Kinetic observations with pyrite concentrate demonstrated a lag phase in the ability of pyrite oxidation. Induction of iron-oxidizing system during the lag phase is assumed.
ER -
HELÁNOVÁ, Šárka, Martin MANDL, Oldřich JANICZEK, Kevin HALLBERG, Pavel BOUCHAL a Alena ŠPANOVÁ. Bacterial pyrite oxidation under different metabolic states of bacteria. \textit{Acta Universitatis Palackianae Olomucensis}. Olomouc, 2004, roč.~43S, 3.9.2004, s.~165-165. ISSN~0232-0061.
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