Removal of hydrogen sulphide by immobilized "Thiobacillus thioparus" in a biofilter packed with polyurethane foam

• Autores: Martín Ramírez Muñoz, José Manuel Gómez, Domingo Cantero
• Localización: Biotechniques for air pollution control: proceedings of the international congress Biotechniques for Air Pollution Control : A Coruña, Spain, October 5-7, 2005 / Christian Kennes (dir. congr.), María C. Veiga (dir. congr.), 2005, ISBN 84-9749-163-7, págs. 135-142
• Idioma: inglés
• Enlaces
  • Texto completo
• Resumen

  • In this work, a laboratory scale biofilter was design for removal of hydrogen sulphide packed with Thiobacillus thioparus immobilized in polyurethane foam particles (the initial immobilized biomass was 1.6×1011 cel g-1 of solid support). Three empty bed residence times (EBRT) were studied (100, 70 and 30 second) and the initial H2S concentration, ranging from 25 to 750 ppmv, in the inlet gas stream were varied from low to high values in order to determine maximum biofilter efficiency. In these conditions, the biofilter reached efficiency >95% for 300, 150 and 100 ppmv of H2S concentration at 100, 70 and 30 second (EBRT) respectively, but when increasing the inlet concentration of the hydrogen sulphide, the removal efficiencies of H2S decreased.