Anaerobic biodegradation of 13C6-phenol: Analysis of bacteria population involved in two different degradation kinetics

Carolina Hoyos-Hernandez (1) , Intissar Limam (1) , Elie Desmond-Le Quéméner (1) , T. Bouchez (1) , Laurent Mazéas (1)

1 UR HBAN - Hydrosystèmes et Bioprocédés

Biodegradation of 13C6-phenol until mineralisation was observed under mesophilic and thermophilic conditions during the degradation of municipal solid waste. In Mesophilic conditions, as well as in thermophilic, two types of degradation kinetics were obtained. One follows a first order kinetic and the other follows a lag-phase model. The pyrosequencing analysis shows that in the fastest kinetic Clostridium sp. and Anaerobranca sp. were the microorganisms majorly present under mesophilic and thermophilic conditions, respectively. These microorganisms have been already referenced in the literature as microorganisms involved in phenol degradation. Our results suggest that these differences could be explained by the proportions of microorganisms present in both kinetics.

Mots clés: PHENOL; DIGESTION ANAEROBIE; CINETIQUE DE BIODEGRADATION; DECHET SOLIDE; DECHET MUNICIPAL; ACTIVITE BACTERIENNE; ANAEROBIOSE; ANAEROBIC DIGESTION OF MSW; PYROSEQUENCING; OPERATIONAL TAXONOMIC UNIT

Domaines: Sciences de l'environnement

Carolina Hoyos-Hernandez, Intissar Limam, Elie Desmond-Le Quéméner, T. Bouchez, Laurent Mazéas. Anaerobic biodegradation of 13C6-phenol: Analysis of bacteria population involved in two different degradation kinetics. 13th World Congress on Anaerobic Digestion: Recovering (bio) Resources for the World, Jun 2013, Santiago de Compostela, Spain. 4 p. ⟨hal-00952289⟩