scholarly journals Is anaerobic digestion a feasible alternative to the combustion of olive mill solid waste in terms of energy production? A critical review

2020 ◽  
Author(s):  
Antonio Serrano ◽  
Denys Villa‐Gomez ◽  
Fernando G. Fermoso ◽  
Bernabé Alonso‐Fariñas
Keyword(s):  
Anaerobic Digestion ◽  
Solid Waste ◽  
Critical Review ◽  
Energy Production ◽  
Olive Mill Solid Waste ◽  
Feasible Alternative ◽  
Olive Mill

Influence of hydrothermal pretreatment conditions, typology of anaerobic digestion system, and microbial profile in the production of volatile fatty acids from olive mill solid waste

2021 ◽  
Vol 9 (2) ◽  
pp. 105055
Author(s):  
Yasmim Arantes da Fonseca ◽  
Nayara Clarisse Soares Silva ◽  
Adonai Bruneli de Camargos ◽  
Silvana de Queiroz Silva ◽  
Hector Javier Luna Wandurraga ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Anaerobic Digestion ◽  
Solid Waste ◽  
Volatile Fatty Acids ◽  
Hydrothermal Pretreatment ◽  
Microbial Profile ◽  
Olive Mill Solid Waste ◽  
Pretreatment Conditions ◽  
Olive Mill

scholarly journals Enhancing methane production from the invasive macroalga Rugulopteryx okamurae through anaerobic co-digestion with olive mill solid waste: process performance and kinetic analysis

2021 ◽  
Author(s):  
D. de la Lama-Calvente ◽  
M. J. Fernández-Rodríguez ◽  
J. Llanos ◽  
J. M. Mancilla-Leytón ◽  
R. Borja
Keyword(s):  
Anaerobic Digestion ◽  
Solid Waste ◽  
Methane Production ◽  
Methane Yield ◽  
Specific Rate ◽  
Order Kinetic ◽  
Two Phase ◽  
First Order ◽  
Olive Mill Solid Waste ◽  
Olive Mill

AbstractThe biomass valorisation of the invasive brown alga Rugulopteryx okamurae (Dictyotales, Phaeophyceae) is key to curbing the expansion of this invasive macroalga which is generating tonnes of biomass on southern Spain beaches. As a feasible alternative for the biomass management, anaerobic co-digestion is proposed in this study. Although the anaerobic digestion of macroalgae barely produced 177 mL of CH4 g−1 VS, the co-digestion with a C-rich substrate, such as the olive mill solid waste (OMSW, the main waste derived from the two-phase olive oil manufacturing process), improved the anaerobic digestion process. The mixture improved not only the methane yield, but also its biodegradability. The highest biodegradability was found in the mixture 1 R. okamurae—1 OMSW, which improved the biodegradability of the macroalgae by 12.9% and 38.1% for the OMSW. The highest methane yield was observed for the mixture 1 R. okamurae—3 OMSW, improving the methane production of macroalgae alone by 157% and the OMSW methane production by 8.6%. Two mathematical models were used to fit the experimental data of methane production time with the aim of assessing the processes and obtaining the kinetic constants of the anaerobic co-digestion of different combination of R. okamurae and OMSW and both substrates independently. First-order kinetic and the transference function models allowed for appropriately fitting the experimental results of methane production with digestion time. The specific rate constant, k (first-order model) for the mixture 1 R. okamurae- 1.5 OMSW, was 5.1 and 1.3 times higher than that obtained for the mono-digestion of single OMSW and the macroalga, respectively. In the same way, the transference function model revealed that the maximum methane production rate (Rmax) was also found for the mixture 1 R. okamurae—1.5 OMSW (30.4 mL CH4 g−1 VS day−1), which was 1.6 and 2.2 times higher than the corresponding to the mono-digestions of the single OMSW and sole R. okamurae (18.9 and 13.6 mL CH4 g−1 VS day−1), respectively.

Performance evaluation of mesophilic semi-continuous anaerobic digestion of high-temperature thermally pre-treated olive mill solid waste

2019 ◽  
Vol 87 ◽  
pp. 250-257 ◽  
Author(s):  
Antonio Serrano ◽  
Fernando G. Fermoso ◽  
Bernabé Alonso-Fariñas ◽  
Guillermo Rodríguez-Gutiérrez ◽  
Sergio López ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
High Temperature ◽  
Anaerobic Digestion ◽  
Solid Waste ◽  
Olive Mill Solid Waste ◽  
Olive Mill

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

Energies ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 2222 ◽  
Author(s):  
Antonio Serrano ◽  
Fernando G. Fermoso ◽  
Bernabé Alonso-Fariñas ◽  
Guillermo Rodríguez-Gutiérrez ◽  
Sergio López ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Phenolic Compounds ◽  
Solid Waste ◽  
Steam Explosion ◽  
Loading Rates ◽  
Microbial Inhibitors ◽  
Olive Mill Solid Waste ◽  
Term Evaluation ◽  
Olive Mill

Steam-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.

scholarly journals Biogas Potential of the Side Streams Obtained in a Novel Phenolic Extraction System from Olive Mill Solid Waste

Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5438
Author(s):  
África Fernández-Prior ◽  
Ángeles Trujillo-Reyes ◽  
Antonio Serrano ◽  
Guillermo Rodríguez-Gutiérrez ◽  
Claudio Reinhard ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Phenolic Compounds ◽  
Olive Oil ◽  
Solid Waste ◽  
Suspended Solids ◽  
Extraction Process ◽  
Methane Yield ◽  
Yield Coefficient ◽  
Olive Mill Solid Waste ◽  
Olive Mill

The olive oil production is an important industrial sector in many Mediterranean areas, but it is currently struggled by the necessity of a proper valorisation of the olive mill solid waste or alperujo. The alperujo is the main by-product generated during the two-phase olive oil extraction, accounting for up to 80% of the initial olive mass. The alperujo is a source of valuable compounds, such as the pomace olive oil or highly interesting phenolic compounds. In the present research, a novel biorefinery approach has been used for phenolic compounds recovery. However, the extraction of these valuables compounds generates different exhausted phases with high organic matter content that are required to be managed. This study consists of the evaluation of the anaerobic biodegradability of the different fractions obtained in a novel biorefinery approach for the integral valorisation of alperujo. The results show that the different phases obtained during the biorefinery of the alperujo can be effectively subjected to anaerobic digestion and no inhibition processes were detected. The highest methane yield coefficients were obtained for the phases obtained after a two-months storages, i.e., suspended solids and liquid phase free of suspended solids, which generated 366 ± 7 mL CH4/g VS and 358 ± 6 mL CH4/g VS, respectively. The phenol extraction process reduced the methane yield coefficient around 25% due to the retention of biodegradable compounds during the extraction process. Regardless of this drop, the anaerobic digestion is a suitable technology for the stabilization of the different generated residual phases, whereas the high market price of the extracted phenols can largely compensate the slight decrease in the methane generation.

scholarly journals Batch culture growth of Chlorella zofingiensis on effluent derived from two-stage anaerobic digestion of two-phase olive mill solid waste

2008 ◽  
Vol 11 (2) ◽  
pp. 0-0 ◽  
Author(s):  
Lissette Travieso Cordoba ◽  
Alma Rosa Dominguez Bocanegra ◽  
Barbara Rincon Llorente ◽  
Enrique Rincon Llorente ◽  
Francisco Benitez Echegoyen ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Solid Waste ◽  
Batch Culture ◽  
Two Stage ◽  
Two Phase ◽  
Chlorella Zofingiensis ◽  
Olive Mill Solid Waste ◽  
Culture Growth ◽  
Olive Mill

Effect of alkaline pretreatment on anaerobic digestion of olive mill solid waste

2016 ◽  
Vol 58 ◽  
pp. 160-168 ◽  
Author(s):  
Frantseska-Maria Pellera ◽  
Sofia Santori ◽  
Raffaella Pomi ◽  
Alessandra Polettini ◽  
Evangelos Gidarakos
Keyword(s):  
Anaerobic Digestion ◽  
Solid Waste ◽  
Alkaline Pretreatment ◽  
Olive Mill Solid Waste ◽  
Olive Mill

scholarly journals Impact of soft hydrothermal pre-treatments on the olive mill solid waste characteristics and its subsequent anaerobic digestion

2020 ◽  
Author(s):  
M. J. Fernández-Rodríguez ◽  
D. de la Lama-Calvente ◽  
A. Jiménez-Rodríguez ◽  
R. Pino-Mejías ◽  
R. Borja ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Solid Waste ◽  
Olive Mill Solid Waste ◽  
Waste Characteristics ◽  
Olive Mill
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