Bacterial pyrite oxidation under different metabolic states of
bacteria

J 2004

Bacterial pyrite oxidation under different metabolic states of bacteria

HELÁNOVÁ, Šárka, Martin MANDL, Oldřich JANICZEK, Kevin HALLBERG, Pavel BOUCHAL et. al.

Basic information

Original name

Bacterial pyrite oxidation under different metabolic states of bacteria

Name in Czech

Bakteriální oxidace pyritu za odlišných metabolických stavů bakterií

Authors

HELÁNOVÁ, Šárka (203 Czech Republic), Martin MANDL (203 Czech Republic, guarantor), Oldřich JANICZEK (203 Czech Republic), Kevin HALLBERG (826 United Kingdom of Great Britain and Northern Ireland), Pavel BOUCHAL (203 Czech Republic) and Alena ŠPANOVÁ (203 Czech Republic)

Edition

Acta Universitatis Palackianae Olomucensis, Olomouc, 2004, 0232-0061

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

is not subject to a state or trade secret

RIV identification code

RIV/00216224:14310/04:00011995

Organization unit

Faculty of Science

Keywords in English

pyrite oxidation; Thiobacillus

Abstract

ORIG CZ

V originále

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.

In Czech

Bakteriální oxidace pyritu

Links

GA525/04/1309, research and development project

Name: Bakteriální oxidace anorganických sirných látek, ekologické aspekty

Investor: Czech Science Foundation, Bacterial oxidation of inorganic sulfur substances, environmental aspects

Citovat

HELÁNOVÁ, Šárka, Martin MANDL, Oldřich JANICZEK, Kevin HALLBERG, Pavel BOUCHAL and Alena ŠPANOVÁ. Bacterial pyrite oxidation under different metabolic states of bacteria. Acta Universitatis Palackianae Olomucensis. Olomouc, 2004, 43S, 3.9.2004, p. 165-165. ISSN 0232-0061.

@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 and Alena ŠPANOVÁ. Bacterial pyrite oxidation under different metabolic states of bacteria. \textit{Acta Universitatis Palackianae Olomucensis}. Olomouc, 2004, 43S, 3.9.2004, p.~165-165. ISSN~0232-0061.

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