Anaerobic digester bioaugmentation influences quasi steady state performance and microbial community

Autor: Kaushik Venkiteshwaran, Jérôme Hamelin, Daniel Zitomer, Kim Milferstedt
Přispěvatelé: Department of Civil, Construction and Environmental Engineering, Marquette University, Laboratoire de Biotechnologie de l'Environnement [Narbonne] (LBE), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA), Marquette University [Milwaukee], Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de la Recherche Agronomique (INRA), Venkiteshwaran, Kaushik
Jazyk: angličtina
Rok vydání: 2016
Předmět:
0301 basic medicine
Methanobacterium
Bioaugmentation
digesteur anaérobie
Environmental Engineering
digester efficiency
methanobacterium
methanosaeta
methanosarcina
methanospririllum
next generation sequencing
[SDV]Life Sciences [q-bio]
030106 microbiology
processus stationnaire
Biomass
digestion anaérobie
010501 environmental sciences
Membrane bioreactor
01 natural sciences
Methanosaeta
yield increases
03 medical and health sciences
Bioreactors
RNA
Ribosomal
16S
augmentation de rendement
Food science
Anaerobiosis
bioaugmentation
Waste Management and Disposal
Effluent
0105 earth and related environmental sciences
Water Science and Technology
Civil and Structural Engineering
2. Zero hunger
communauté microbienne
biology
Ecological Modeling
Environmental engineering
Methanosarcina
biology.organism_classification
biogaz
Pollution
Archaea
production de méthane
steady-state processes
microbial community
Anaerobic exercise
Methane
Zdroj: Water Research
Water Research, IWA Publishing, 2016, 104, pp.128-136. ⟨10.1016/j.watres.2016.08.012⟩
Water Research (104), 128-136. (2016)
ISSN: 0043-1354
Popis: Nine anaerobic digesters, each seeded with biomass from a different source, were operated identically and their quasi steady state function was compared. Subsequently, digesters were bioaugmented with a methanogenic culture previously shown to increase specific methanogenic activity. Before bioaugmentation, different seed biomass resulted in different quasi steady state function, with digesters clustering into three groups distinguished by methane (CH4) production. Digesters with similar functional performance contained similar archaeal communities based on clustering of Illumina sequence data of the V4V5 region of the 16S rRNA gene. High CH4 production correlated with neutral pH and high Methanosarcina abundance, whereas low CH4 production correlated to low pH as well as high Methanobacterium and DHVEG 6 family abundance. After bioaugmentation, CH4 production from the high CH4-producing digesters transiently increased by 11 ± 3% relative to non-bioaugmented controls (p
Databáze: OpenAIRE
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