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Biogas production from N-rich wastes: SAOB-HM enriched digester versus hydrophobic membrane assisted digester
dc.contributor.author | Ruiz Sánchez, Josep |
dc.contributor.author | López, Aida |
dc.contributor.author | Riau Arenas, Victor |
dc.contributor.author | Prenafeta Boldú, Francesc Xavier |
dc.contributor.author | Fernández García, Belén |
dc.contributor.author | Flotats Ripoll, Xavier |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Agroalimentària i Biotecnologia |
dc.date.accessioned | 2018-05-07T10:37:36Z |
dc.date.issued | 2017 |
dc.identifier.citation | Ruiz, J., López, A., Riau, V., Prenafeta, F., Fernández, B., Flotats, X. Biogas production from N-rich wastes: SAOB-HM enriched digester versus hydrophobic membrane assisted digester. "Proceedings of the 15th World Congress on Anaerobic Digestion", 2017, p. 695-698. |
dc.identifier.uri | http://hdl.handle.net/2117/116975 |
dc.description.abstract | Hydrophobic membranes (HMM) are common in water purification processes to separate volatile compounds. When such membranes are combined with anaerobic digesters (AD), inhibitory phenomena affecting methanogenesis due to ammonium nitrogen, would be overcome. In this work, four continuous AD were operated under high N level and similar conditions (feed composition and loading, temperature and inoculum). Two AD were coupled to HMM with different membrane surface area to digester volume ratio (Am/V), while the third AD had not membrane (control AD). A fourth reactor was operated at high retention time to prompt the syntrophic acetate oxidation (SAO) route. Despite the similar total N inlet content (3.5-4.3 gN L-1), reactor performances were completely different, depending on the Am/V ratio for low retention time values. Conversely, upon operation at a high retention time, the enrichment of acetate syntrophic oxidizing bacteria and hydrogenotrophic methanogens (SAOB-HM) prevented ammonia inhibition. A modified ADM1 model, which included ammonia extraction by HMM and the SAOB population, fitted to the experimental data and helped to understand the observed patterns. |
dc.format.extent | 4 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament de l'aigua |
dc.subject.lcsh | Hydrophobic surfaces |
dc.subject.other | N-rich wastes |
dc.subject.other | hydrophobic membranes |
dc.subject.other | syntrophic acetate oxidizers |
dc.subject.other | biogas |
dc.subject.other | methane |
dc.title | Biogas production from N-rich wastes: SAOB-HM enriched digester versus hydrophobic membrane assisted digester |
dc.type | Article |
dc.subject.lemac | Superficies hidrofòbiques |
dc.contributor.group | Universitat Politècnica de Catalunya. GREA - Grup de Recerca d'Enginyeria Agro-Ambiental |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 21590594 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Ruiz, J.; López, A.; Riau, V.; Prenafeta, F.; Fernández, B.; Flotats, X. |
local.citation.contributor | World Congress on Anaerobic Digestion |
local.citation.publicationName | Proceedings of the 15th World Congress on Anaerobic Digestion |
local.citation.startingPage | 695 |
local.citation.endingPage | 698 |
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