Biotrickling filters for hydrogen sulphide, methyl mercaptan, dimethyl sulphide and dimethyl disulphide removal by thiobacillus thioparus and acidithiobacillus thiooxidans

M. Ramirez, M. Fernández, M. S. Cáceres, R. M. Pérez, J. M. Gómez, D. Cantero, M. Fernández, R. M. Pérez, M. S. Cáceres, GERMAN EDUARDO AROCA ARCAYA

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

BACKGROUND: Hydrogen sulphide (H 2S), methyl mercaptan (MM), dimethyl sulphide (DMS) and dimethyl disulphide (DMDS) are the main odorous compounds found in waste gases from wastewater treatment plants. It is known that two-stage biofiltration can be used for improving the removal efficiency of mixture compounds in gas effluent. So the performance of two biotrickling filters, the first one with Acidithiobacillus thiooxidans (BTA), and the second one with Thiobacillus thioparus (BTT) was researched. RESULTS: For a separately reduced sulphur compounds (RSC) feeding the EC order was: DMDS>DMS>MM. The values of EC were 9.8 g MM-S m -3h -1 (BTT; 78% RE; EBRT 58 s), 36 g DMDS-S m -3h -1 (BTT; 94.4% RE, EBRT 76 s) and 57.5 g H2S-S m -3h -1 (BTA; 92% RE, EBRT 59 s). For simultaneous removal in BTT, the increase of H 2S concentration from 23 to 293 ppmv (EBRT of 59 s) inhibited the RE of DMS (97-84% RE), DMDS (86-76% RE) and MM (83-67% RE). For two-stage biofiltration the RE not decresed for an increased of H 2S concentration from 75 to 432 ppmv. CONCLUSIONS: The RSC removal can be carried out efficiently by two-stage biotrickling filters in series, the first one inoculated with A. thiooxidans and the second one with T. thioparus. The polyurethane foam as carrier for A. thiooxidans immobilization showed very good scale-up possibilities.

Original languageEnglish
Title of host publicationBiotechniques for Air Pollution Control - Proceedings of the 3rd International Congress on Biotechniques for Air Pollution Control
Pages137-150
Number of pages14
StatePublished - 1 Dec 2010
Event3rd International Symposium on Biotechniques for Air Pollution Control - Delft, Netherlands
Duration: 28 Sep 200930 Sep 2009

Publication series

NameBiotechniques for Air Pollution Control - Proceedings of the 3rd International Congress on Biotechniques for Air Pollution Control

Conference

Conference3rd International Symposium on Biotechniques for Air Pollution Control
CountryNetherlands
CityDelft
Period28/09/0930/09/09

Keywords

  • Acidithiobacillus thiooxidans
  • Biotrickling filter
  • Polyurethane foam
  • Reduced sulphur compounds
  • Thiobacillus thioparus

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