| Title: | Potential use of Methylibium sp. as a biodegradation tool in organosilicon and volatile compounds removal for biogas upgrading |
| Author(s): | Boada E; Santos-Clotas E; Bertran S; Cabrera-Codony A; Martin MJ; Baneras L; Gich F; |
| Address: | "Molecular Microbial Ecology Group (gEMM-IEA), Institute of Aquatic Ecology, Faculty of Sciences, University of Girona, Campus Montilivi, Maria Aurelia Capmany 40, E-17003, Girona, Catalonia, Spain. LEQUIA. Institute of Environment. University of Girona, Campus Montilivi, Maria Aurelia Capmany 69, E-17003, Girona, Catalonia, Spain. Molecular Microbial Ecology Group (gEMM-IEA), Institute of Aquatic Ecology, Faculty of Sciences, University of Girona, Campus Montilivi, Maria Aurelia Capmany 40, E-17003, Girona, Catalonia, Spain. Electronic address: frederic.gich@udg.edu" |
| DOI: | 10.1016/j.chemosphere.2019.124908 |
| ISSN/ISBN: | 1879-1298 (Electronic) 0045-6535 (Linking) |
| Abstract: | "Organosilicon compounds are the most undesirable compounds for the energy recovery of biogas. These compounds are still resistant to biodegradation when biotechnologies are considered for biogas purification. Herein we isolated 52 bacterial species from anaerobic batch enrichment cultures (BEC) saturated with D4 and from an anaerobic lab-scale biotrickling filter (BTF) fed with a gas flow containing D4 as unique carbon source. Among those Methylibium sp. and Pseudomonas aeruginosa showed the highest capacity to remove D4 (53.04%?ª++/-?ª+0.03 and 24.42%?ª++/-?ª+0.02, respectively). Contrarily, co-culture evaluation treatment for the biodegradation of siloxanes together with volatile organic compounds removed a lower concentration of D4 compared to toluene and limonene, which were completely removed. Remarkably, the siloxane D5 proved to be more biodegradable than D4. Substrates removal values achieved by Methylibium sp. suggested that this bacterial isolate could be used in biological removal technologies of siloxanes" |
| Keywords: | "Anaerobiosis Biodegradation, Environmental Biofuels/*analysis Bioreactors/*microbiology Burkholderiales/*growth & development Organosilicon Compounds/*analysis Volatile Organic Compounds/*analysis Water Purification/methods Anaerobic batch enrichment Biod;" |
| Notes: | "MedlineBoada, Ellana Santos-Clotas, Eric Bertran, Salvador Cabrera-Codony, Alba Martin, Maria J Baneras, Lluis Gich, Frederic eng England 2019/11/16 Chemosphere. 2020 Feb; 240:124908. doi: 10.1016/j.chemosphere.2019.124908. Epub 2019 Sep 18" |
