Improvement of biomethane potential of sewage sludge anaerobic co-digestion by addition of “sherry-wine” distillery wastewater.
dc.contributor.author | Ripoll Morales, Vanessa | |
dc.contributor.author | Agabo-García, Cristina | |
dc.contributor.author | Perez, Montserrat | |
dc.contributor.author | Solera, Rosario | |
dc.date.accessioned | 2020-05-09T17:24:09Z | |
dc.date.available | 2020-05-09T17:24:09Z | |
dc.date.issued | 2020 | |
dc.description.abstract | Co-digestion of sewage sludge (SS) with other unusually treated residues has been reported as an efficient method to improve biomethane production. In this work, Sherry-wine distillery wastewater (SW-DW) has been proposed as co-substrate in order to increase biomethane production and as a breakthrough solution in the management of both types of waste. In order to achieve this goal, different SS:SW-DW mixtures were employed as substrates in Biomethane Potential (BMP) tests. The biodegradability and biomethane potential of each mixture was determined selecting the optimal co-substrate ratio. Results showed that the addition of SW-DW as a co-substrate improves the anaerobic digestion of SS in a proportionally way in terms of CODs and biomethane production The optimal co-substrates ratio was 50:50 of SS:SW-DW obtaining %VSremoval = 54.5%; YCH4 = 225.1 L CH4/kgsv or 154 L CH4/kgCODt and microbial population of 5.5 times higher than sole SS. In this case, %VSremoval = 48.1%; YCH4 = 183 L CH4/kgsv or 135 L CH4/kgCODt. The modified Gompertz equation was used for the kinetic modelling of biogas production with successful fitting results (r2 = 0.99). In this sense, at optimal conditions, the maximum productivity reached at an infinite digestion time was () = 229 ± 5.0 NL/kgSV; the specific constant was K = 25.0 ± 2.3 NL/kgSV·d and the lag phase time constant was (λ) = 2.49 ± 0.19. | spa |
dc.description.extent | 569 KB | spa |
dc.identifier.doi | 10.1016/j.jclepro.2019.119667 | spa |
dc.identifier.issn | 0959-6526 | spa |
dc.identifier.uri | http://hdl.handle.net/10641/1917 | |
dc.language.iso | eng | spa |
dc.publisher | Journal of Cleaner Production | spa |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0959652619345378?via%3Dihub | spa |
dc.rights | Atribución-NoComercial-SinDerivadas 3.0 España | * |
dc.rights.accessRights | open access | spa |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.subject | Biochemical methane potential | spa |
dc.subject | Anaerobic digestion and co-digestion | spa |
dc.subject | Sewage sludge | spa |
dc.subject | Kinetic parameters | spa |
dc.subject | Biogas production | spa |
dc.title | Improvement of biomethane potential of sewage sludge anaerobic co-digestion by addition of “sherry-wine” distillery wastewater. | spa |
dc.type | journal article | spa |
dc.type.hasVersion | SMUR | spa |
dspace.entity.type | Publication |
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