English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/183868
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Long-Term Evaluation of Mesophilic Semi-Continuous Anaerobic Digestion of Olive Mill Solid Waste Pretreated with Steam-Explosion

AuthorsSerrano, Antonio; Fermoso, Fernando G. ; Alonso-Fariñas, Bernabé; Rodríguez-Gutiérrez, Guillermo ; López, Sergio ; Fernández-Bolaños Guzmán, Juan ; Borja Padilla, Rafael
KeywordsAnaerobic digestion
Economic evaluation
Olive mill solid waste;
Phenolic compounds
Steam explosion
Issue Date11-Jun-2019
PublisherMultidisciplinary Digital Publishing Institute
CitationEnergies 12 (11): 2222 (2019)
AbstractSteam-explosion is a promising technology for recovering phenolic compounds from olive mill solid waste (OMSW) due to its high impact on the structure of the fibre. Moreover, the recovery of the phenols, which are well-known microbial inhibitors, could improve the subsequent biomethanization of the dephenolized OMSW to produce energy. However, there is a considerable lack of knowledge about how the remaining phenolic compounds could affect a long-term biomethanization process of steam-exploded OMSW. This work evaluated a semi-continuous mesophilic anaerobic digestion of dephenolized steam-exploited OMSW during a long operational period (275 days), assessing different organic loading rates (OLRs). The process was stable at an OLR of 1 gVS/(L·d), with a specific production rate of 163 ± 28 mL CH4/(gVS·d). However, the increment of the OLR up to 2 gVS/(L·d) resulted in total exhaust of the methane production. The increment in the propionic acid concentration up to 1486 mg/L could be the main responsible factor for the inhibition. Regardless of the OLR, the concentration of phenolic compounds was always lower than the inhibition limits. Therefore, steam-exploited OMSW could be a suitable substrate for anaerobic digestion at a suitable OLR
Description13 Páginas.-- 5 Tablas.-- 7 Figuras
Publisher version (URL)http://dx.doi.org/10.3390/en12112222
Appears in Collections:(IG) Artículos
Files in This Item:
File Description SizeFormat 
Energies_2019_V12_P2222.pdfArtículo principal2,73 MBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.