Potential use of Methylibium sp. as a biodegradation tool in organosilicon and volatile compounds removal for biogas upgrading
| Autor: | Frederic Gich, Maria J. Martin, Salvador Bertran, Eric Santos-Clotas, Ellana Boada, Alba Cabrera-Codony, Lluís Bañeras |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
Methylibium Health Toxicology and Mutagenesis 0208 environmental biotechnology 02 engineering and technology 010501 environmental sciences 01 natural sciences 7. Clean energy Water Purification chemistry.chemical_compound Bioreactors Biogas Environmental Chemistry Organosilicon Compounds Anaerobiosis Burkholderiales 0105 earth and related environmental sciences Organosilicon Volatile Organic Compounds Limonene Public Health Environmental and Occupational Health General Medicine General Chemistry Biodegradation Pulp and paper industry Pollution Toluene 6. Clean water 020801 environmental engineering Filter (aquarium) Biodegradation Environmental chemistry Biofuels Siloxane |
| Zdroj: | Chemosphere. 240:124908 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/j.chemosphere.2019.124908 |
| Popis: | 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% ± 0.03 and 24.42% ± 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect