caa a22 4500 605497931 CHVBK 20210128100543.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s00253-014-5842-0 doi (NATIONALLICENCE)springer-10.1007/s00253-014-5842-0 Potentialities of coupling biological processes (biotrickler/biofilter) for the degradation of a mixture of sulphur compounds [Elektronische Daten] [Luc Malhautier, Alexandre Soupramanien, Sandrine Bayle, Janick Rocher, Jean-Louis Fanlo] 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 × 1010 16S recombinant DNA (rDNA) copiesg 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. Springer-Verlag Berlin Heidelberg, 2014 Volatile sulphur compounds nationallicence Biofiltration nationallicence Biotrickling filter nationallicence Coupling nationallicence Hyphomicrobium nationallicence Thiobacillus nationallicence Malhautier Luc Ecole des mines d'Alès, 6 Avenue de Clavières, 30319, Alès Cedex, France aut Soupramanien Alexandre Ecole des mines d'Alès, 6 Avenue de Clavières, 30319, Alès Cedex, France aut Bayle Sandrine Ecole des mines d'Alès, 6 Avenue de Clavières, 30319, Alès Cedex, France aut Rocher Janick Ecole des mines d'Alès, 6 Avenue de Clavières, 30319, Alès Cedex, France aut Fanlo Jean-Louis Ecole des mines d'Alès, 6 Avenue de Clavières, 30319, Alès Cedex, France aut Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/1(2015-01-01), 89-96 0175-7598 99:1<89 2015 99 253 https://doi.org/10.1007/s00253-014-5842-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00253-014-5842-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Malhautier Luc Ecole des mines d'Alès, 6 Avenue de Clavières, 30319, Alès Cedex, France aut NATIONALLICENCE 700 1- Soupramanien Alexandre Ecole des mines d'Alès, 6 Avenue de Clavières, 30319, Alès Cedex, France aut NATIONALLICENCE 700 1- Bayle Sandrine Ecole des mines d'Alès, 6 Avenue de Clavières, 30319, Alès Cedex, France aut NATIONALLICENCE 700 1- Rocher Janick Ecole des mines d'Alès, 6 Avenue de Clavières, 30319, Alès Cedex, France aut NATIONALLICENCE 700 1- Fanlo Jean-Louis Ecole des mines d'Alès, 6 Avenue de Clavières, 30319, Alès Cedex, France aut NATIONALLICENCE 773 0- Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/1(2015-01-01), 89-96 0175-7598 99:1<89 2015 99 253