Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Modelling syntrophic acetate oxidation in a two-phase anaerobic configuration fed with Waste Activated Sludge |
| Abstract | In the thermophilic phase, the acetoclastic methanogenesis was likely replaced by a nonacetoclastic pathway, namely, syntrophic acetate oxidation (SAO). A modified version of Anaerobic Digestion Model n°1 (ADM1), accounting for the SAO pathway, was implemented and calibrated. The proposed model addressed the relationship between the hydrogen concentration and Gibbs free energy and showed the thermodynamic feasibility of the SAO pathway, while simultaneously highlighting the role played by hydrogenotrophic methanogens in maintaining a sufficiently low hydrogen partial pressure so that the SAO was energetically feasible. The estimated energy loss was estimated to be approximately 20 % due to the switch of the microbial pathway from acetoclastic methanogenesis to SAO. |
| Source | 6th IWA/WEF Water Resource Recovery Modelling Seminar - Wrrmod2018, Lac Beauport (Canada), 10-14/03/2018 |
| Keywords | Waste activate sludgeDual phase AD configurationADM1Syntrophic acetate oxidationFeeding strategyEnergy assessment |
| Year | 2018 |
| Type | Poster |
| Authors | Daniele Montecchio, Giovanni Esposito, Maria C. Gagliano, Agata Gallipoli, Andrea Gianico and Camilla M. Braguglia |
| Text | 458588 2018 Waste activate sludge Dual phase AD configuration ADM1 Syntrophic acetate oxidation Feeding strategy Energy assessment Modelling syntrophic acetate oxidation in a two phase anaerobic configuration fed with Waste Activated Sludge Daniele Montecchio, Giovanni Esposito, Maria C. Gagliano, Agata Gallipoli, Andrea Gianico and Camilla M. Braguglia Water Research Institute IRSA CNR, Area della Ricerca RM1, Via Salaria km. 29,300, 00015 Monterotondo, Roma, Italy University of Cassino and the Southern Lazio, Department of Civil and Mechanical Engineering, Via Di Biasio, 43, 03043 Cassino, FR, Italy In the thermophilic phase, the acetoclastic methanogenesis was likely replaced by a nonacetoclastic pathway, namely, syntrophic acetate oxidation SAO . A modified version of Anaerobic Digestion Model n°1 ADM1 , accounting for the SAO pathway, was implemented and calibrated. The proposed model addressed the relationship between the hydrogen concentration and Gibbs free energy and showed the thermodynamic feasibility of the SAO pathway, while simultaneously highlighting the role played by hydrogenotrophic methanogens in maintaining a sufficiently low hydrogen partial pressure so that the SAO was energetically feasible. The estimated energy loss was estimated to be approximately 20 % due to the switch of the microbial pathway from acetoclastic methanogenesis to SAO. Published version 6th IWA/WEF Water Resource Recovery Modelling Seminar Wrrmod2018 Lac Beauport Canada 10 14/03/2018 Internazionale Contributo Poster andrea.gianico GIANICO ANDREA |