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Description
  • Bakteriální oxidace pyritu (cs)
  • 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.
  • 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. (en)
Title
  • Bakteriální oxidace pyritu za odlišných metabolických stavů bakterií (cs)
  • Bacterial pyrite oxidation under different metabolic states of bacteria
  • Bacterial pyrite oxidation under different metabolic states of bacteria (en)
skos:prefLabel
  • Bakteriální oxidace pyritu za odlišných metabolických stavů bakterií (cs)
  • Bacterial pyrite oxidation under different metabolic states of bacteria
  • Bacterial pyrite oxidation under different metabolic states of bacteria (en)
skos:notation
  • RIV/00216224:14310/04:00011995!RIV08-GA0-14310___
http://linked.open.../vavai/riv/strany
  • 165-165
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA525/04/1309)
http://linked.open...iv/cisloPeriodika
  • 3.9.2004
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 555777
http://linked.open...ai/riv/idVysledku
  • RIV/00216224:14310/04:00011995
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • pyrite oxidation; Thiobacillus (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [AAE767920ABD]
http://linked.open...i/riv/nazevZdroje
  • Acta Universitatis Palackianae Olomucensis
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 43S
http://linked.open...iv/tvurceVysledku
  • Španová, Alena
  • Bouchal, Pavel
  • Janiczek, Oldřich
  • Mandl, Martin
  • Helánová, Šárka
  • Hallberg, Kevin
issn
  • 0232-0061
number of pages
http://localhost/t...ganizacniJednotka
  • 14310
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