Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
679252 | Bioresource Technology | 2016 | 37 Pages |
Abstract
We investigated the response of microbial community to changes in H2S loading rate in a microaerated desulphurisation system treating biogas from vinasse methanisation. H2S removal efficiency was high, and both COD and DO seemed to be important parameters to biomass activity. DGGE analysis retrieved sequences of sulphide-oxidising bacteria (SOB), such as Thioalkalimicrobium sp. Deep sequencing analysis revealed that the microbial community was complex and remained constant throughout the experiment. Most sequences belonged to Firmicutes and Proteobacteria, and, to a lesser extent, Bacteroidetes, Chloroflexi, and Synergistetes. Despite the high sulphide removal efficiency, the abundance of the taxa of SOB was low, and was negatively affected by the high sulphide loading rate.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Marcela França Dias, Luis Felipe Colturato, João Paulo de Oliveira, Laura Rabelo Leite, Guilherme Oliveira, Carlos Augusto Chernicharo, Juliana Calabria de Araújo,