Folia Microbiologica

, 54:409 | Cite as

Hydrogen sulfide removal from air by Acidithiobacillus thiooxidans in a trickle bed reactor

  • M. Ramirez
  • J. M. Gómez
  • D. Cantero
  • J. Páca
  • M. Halecký
  • E. I. Kozliak
  • M. Sobotka
Article

Abstract

A strain of Acidithiobacillus thiooxidans immobilized in polyurethane foam was utilized for H2S removal in a bench-scale trickle-bed reactor, testing the limits of acidity and SO42− accumulation. The use of this acidophilic strain resulted in remarkable stability in the performance of the system. The reactor maintained a >98–99 % H2S removal efficiency for c of up to 66 ppmv and empty bed residence time ≤12–15 s. Removal of >98 % H2S was achieved under steady-state conditions, over the pH range of 0.44–7.30. Despite the accumulation of acidity and SO42− (up to 97 g/L), the system operated without inhibition.

Abbreviations

cin

inlet H2S concentration, g S/m3

cout

outlet H2S concentration, g S/m3

EC

elimination capacity, g S m−3 h−1

EBRT

empty-bed residence time, min and/or s

L

load, g S m−3 h−1

ppmv

parts per million by volume

PUF

polyurethane foam

Q

air flow rate, m3/h

R

removal efficiency, %

Vb

bed volume, m3

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Copyright information

© Institute of Microbiology, v.v.i, Academy of Sciences of the Czech Republic 2009

Authors and Affiliations

  • M. Ramirez
    • 1
  • J. M. Gómez
    • 1
  • D. Cantero
    • 1
  • J. Páca
    • 2
  • M. Halecký
    • 2
  • E. I. Kozliak
    • 3
  • M. Sobotka
    • 4
  1. 1.Department of Chemical Engineering, Food Technology and Environmental Technologies, Faculty of SciencesUniversity of CádizCádizSpain
  2. 2.Department of Fermentation Chemistry and BioengineeringInstitute of Chemical TechnologyPragueCzech Republic
  3. 3.Department of ChemistryUniversity of North DakotaGrand ForksUSA
  4. 4.Institute of Microbiology of the Academy of Sciences of the Czech Republic, v.v.i.PragueCzech Republic

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