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Function and limits of biofilters for the removal of methane in exhaust gases from the pig industry

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Abstract

The agricultural sector is responsible for an important part of Canadian greenhouse gas (GHG) emissions, 8 % of the 747 Mt eq. CO2 emitted each year. The pork industry, a key sector of the agrifood industry, has had a rapid growth in Canada since the middle 1980s. For this industry, slurry storage accounts for the major part of methane (CH4) emissions, a GHG 25 times higher than carbon dioxide (CO2) on a 100-year time horizon. Intending to reduce these emissions, biofiltration, a process effective to treat CH4 from landfills and coal mines, could be effective to treat CH4 from the pig industry. Biofiltration is a complex process that requires the understanding of the biological process of CH4 oxidation and a control of the engineering parameters (filter bed, temperature, etc.). Some biofiltration studies show that this technology could be used to treat CH4 at a relatively low cost and with a relatively high purification performance.

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Acknowledgments

This work was supported by a strategic grant from the Natural Sciences and Engineering Council of Canada to Michèle Heitz in partnership with le Centre de Recherche Industrielle du Québec and Viaporc inc.

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  1. Department of Chemical Engineering and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, 2500 Boulevard de l’Université, J1K 2R1, Sherbrooke, Quebec, Canada

    Marc Veillette & Michèle Heitz

  2. Department of Biology, Faculty of Sciences, Université de Sherbrooke, 2500 Boulevard de l’Université, J1K 2R1, , Sherbrooke, Quebec, Canada

    Pascal Viens & Ryszard Brzezinski

  3. Institut de recherche et de développement en agroenvironnement, 2700 rue Einstein, Québec, Québec, Canada, G1P 3W8

    Matthieu Girard

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  1. Marc Veillette
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Veillette, M., Girard, M., Viens, P. et al. Function and limits of biofilters for the removal of methane in exhaust gases from the pig industry. Appl Microbiol Biotechnol 94, 601–611 (2012). https://doi.org/10.1007/s00253-012-3998-z

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