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Process performance and microbial community structure in thermophilic trickling biofilter reactors for biogas upgrading
- Source :
- Porté, H, Kougias, P, Alfaro, N, Treu, L, Campanaro, S & Angelidaki, I 2019, ' Process performance and microbial community structure in thermophilic trickling biofilter reactors for biogas upgrading ', Science of the Total Environment, vol. 655, pp. 529-538 . https://doi.org/10.1016/j.scitotenv.2018.11.289
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- This study evaluated the process performance and determined the microbial community structure of two lab-scale thermophilic trickling biofilter reactors used for biological methanation of hydrogen and carbon-dioxide for a total period of 94 days. Stable and robust operation was achieved by means of a single-pass gas flow. The quality of the output gas (>97%) was comparable to the methane purity achieved by commercial biogas upgrading systems fulfilling the specifications to be used as substitute to natural gas. The reactors' methane productivity reached >1.7 LCH4/(LR·d) at hydrogen loading rate of 7.2 LH2/(LR·d). The spatial distribution of the microbial consortia localized in the liquid media and biofilm enabled us to gain a deeper understanding on how the microbiome is structured inside the trickling biofilter. Sequencing results revealed a significant predominance of Methanothermobacter sp. in the biofilm. Unknown members of the class Clostridia were highly abundant in biofilm and liquid media, while acetate utilising bacteria predominated in liquid samples.
- Subjects :
- 16S
Methanobacteriaceae
Environmental Engineering
010504 meteorology & atmospheric sciences
Microorganism
010501 environmental sciences
01 natural sciences
Methane
chemistry.chemical_compound
Bioreactors
Theoretical
Biogas
Models
Natural gas
Methanation
RNA, Ribosomal, 16S
Environmental Chemistry
Waste Management and Disposal
0105 earth and related environmental sciences
Ribosomal
Clostridium
Power to gas
Biomethanation
business.industry
Microbiota
Biogas upgrading
Power-to-gas
Trickling biofilter
Biofilms
Biofuels
Filtration
Models, Theoretical
Pollution
Pulp and paper industry
Microbial population biology
chemistry
Biofilter
RNA
business
Subjects
Details
- ISSN :
- 00489697
- Volume :
- 655
- Database :
- OpenAIRE
- Journal :
- Science of The Total Environment
- Accession number :
- edsair.doi.dedup.....0b0566a7bd8a4f3ef50a00203e52035a