Potentialities of coupling biological processes (biotrickler/biofilter) for the degradation of a mixture of sulphur compounds
| Autor: | Luc Malhautier, Jean-Louis Fanlo, Alexandre Soupramanien, Janick Rocher, Sandrine Bayle |
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| Přispěvatelé: | Laboratoire de Génie de l'Environnement Industriel (LGEI), IMT - MINES ALES (IMT - MINES ALES), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Institut Mines-Télécom [Paris] (IMT) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
[SDV.BIO]Life Sciences [q-bio]/Biotechnology
Volatile sulphur compounds Biofiltration Kinetics chemistry.chemical_element Biotrickling filter Sulfides Applied Microbiology and Biotechnology Coupling RNA Ribosomal 16S Disulfides Hydrogen Sulfide Chromatography biology [SDE.IE]Environmental Sciences/Environmental Engineering General Medicine Biodegradation biology.organism_classification Thiobacillus Sulfur Bacterial Load Filter (aquarium) Hyphomicrobium Air Filters chemistry Microbial population biology Environmental chemistry Biofilter Degradation (geology) Filtration Bacteria Biotechnology |
| Zdroj: | Applied Microbiology and Biotechnology Applied Microbiology and Biotechnology, Springer Verlag, 2015, 99 (1, SI), pp.89-96. ⟨10.1007/s00253-014-5842-0⟩ |
| ISSN: | 0175-7598 1432-0614 |
| DOI: | 10.1007/s00253-014-5842-0⟩ |
| Popis: | International audience; This study deals with the potential of biological processes combining a biotrickler and a biofilter to treat a mixture of sulphur-reduced compounds including dimethyl sulphide (DMS), dimethyl disulphide (DMDS) and hydrogen sulphide (H2S). As a reference, duplicated biofilters were implemented, and operating conditions were similar for all bioprocesses. The first step of this work was to determine the efficiency removal level achieved for each compound of the mixture and in a second step, to assess the longitudinal distribution of biodegradation activities and evaluate the total bacteria, Hyphomicrobium sp. and Thiobacillus thioparus densities along the bed height. A complete removal of hydrogen sulphide is reached at the start of the experiment within the first stage (biotrickler) of the coupling. This study highlighted that the coupling of a biotrickling filter and a biofilter is an interesting way to improve both removal efficiency levels (15-20 % more) and kinetics of recalcitrant sulphur compounds such as DMS and DMDS. The total cell densities remained similar (around 1 x 10(10) 16S recombinant DNA (rDNA) copies g dry packing material) for duplicated biofilters and the biofilter below the biotrickling filter. The relative abundances of Hyphomicrobium sp. and T. thioparus have been estimated to an average of 10 +/- 7.0 and 0.23 +/- 0.07 %, respectively, for all biofilters. Further investigation should allow achieving complete removal of DMS by starting the organic sulphur compound degradation within the first stage and surveying microbial community structure colonizing this complex system. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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