| Téléchargement | - Voir le manuscrit accepté : Methane production in an UASB reactor operated under periodic mesophilic-thermohilic conditions (PDF, 662 Kio)
|
|---|
| DOI | Trouver le DOI : https://doi.org/10.1002/bit.21850 |
|---|
| Auteur | Rechercher : Bourque, J.-S.1; Rechercher : Guiot, S. R.1; Rechercher : Tartakovsky, B.1 |
|---|
| Affiliation | - Conseil national de recherches du Canada. Institut de recherche en biotechnologie du CNRC
|
|---|
| Format | Texte, Article |
|---|
| Sujet | environmental; periodic operation; temperature; thermophilic-mesophilic consortium; anaerobic degradation |
|---|
| Résumé | Methane production was studied in a laboratory-scale 10 L anaerobic upflow sludge bed (UASB) reactor with periodic variations of the reactor temperature. On a daily basis the temperature was varied between 35 and 45°C or 35 and 55°C with a heating period of 6 h. Each temperature increase was accompanied by an increase in methane production and a decrease in the concentration of soluble organic matter in the effluent. In comparison to a reactor operated at 35°C, a net increase in methane production of up to 22% was observed. Batch activity tests demonstrated a tolerance of mesophilic methanogenic populations to short-term, 2–6 h, temperature increases, although activity of acetoclastic methanogens decreased after 6 h exposure to a temperature of 55°C. 16S sequencing of DGGE bands revealed proliferation of temperature-tolerant Methanospirillum hungatii sp. in the reactor. |
|---|
| Date de publication | 2008-03-10 |
|---|
| Dans | |
|---|
| Langue | anglais |
|---|
| Numéro du CNRC | NRCC 49099 |
|---|
| Numéro NPARC | 12440520 |
|---|
| Exporter la notice | Exporter en format RIS |
|---|
| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
|---|
| Identificateur de l’enregistrement | de129452-3237-449b-96ed-73b5545691d3 |
|---|
| Enregistrement créé | 2009-10-26 |
|---|
| Enregistrement modifié | 2020-04-15 |
|---|
