Gannoun H., Khelifi E., Omri I., Jabari L., Fardeau Marie-Laure, Bouallagui H., Godon J. J., Hamdi M. (2013). Microbial monitoring by molecular tools of an upflow anaerobic filter treating abattoir wastewaters. Bioresource Technology, 142, p. 269-277. ISSN 0960-8524.
Titre du document
Microbial monitoring by molecular tools of an upflow anaerobic filter treating abattoir wastewaters
Gannoun H., Khelifi E., Omri I., Jabari L., Fardeau Marie-Laure, Bouallagui H., Godon J. J., Hamdi M.
Source
Bioresource Technology, 2013,
142, p. 269-277 ISSN 0960-8524
The performance of anaerobic digestion of abattoir wastewaters (AW) in an upflow anaerobic filter (UAF) was investigated under mesophilic (37 degrees C) and thermophilic (55 degrees C) conditions. The effects of increasing temperature on the performance of the UAF and on the dynamics of the microbial community of the anaerobic sludge were studied. The results showed that chemical oxygen demand (COD) removal efficiency of 90% was achieved for organic loading rates (OLRs) up to 4.5 g COD L-1 d(-1) in mesophilic conditions, while in thermophilic conditions, the highest OLRs of 9 g COD L-1 d(-1) led to the efficiency of 72%. The use of molecular and microbiological methods to recover microbial populations involved in this process showed that fermentative bacteria were the prominent members of the sludge microbial community. Three novel strains were identified as Macellibacteroides fermentans, Desulfotomaculum peckii and Defluviitalea saccharophila.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020]
;
Biotechnologies [084]
