| Title |
Integral Valorization of Two-Phase Olive Mill Solid Waste (OMSW) and Related Washing Waters by Anaerobic Co-digestion of OMSW and the Microalga Raphidocelis subcapitata Cultivated in These Effluents |
| ID_Doc |
22594 |
| Authors |
Fernández-Rodríguez, MJ; de la Lama-Calvente, D; García-González, M; Moreno-Fernández, J; Jiménez-Rodríguez, A; Borja, R; Rincón-Llorente, B |
| Title |
Integral Valorization of Two-Phase Olive Mill Solid Waste (OMSW) and Related Washing Waters by Anaerobic Co-digestion of OMSW and the Microalga Raphidocelis subcapitata Cultivated in These Effluents |
| Year |
2022 |
| Published |
Journal Of Agricultural And Food Chemistry, 70.0, 10 |
| DOI |
10.1021/acs.jafc.1c08100 |
| Abstract |
This study evaluates the comprehensive valorization of the byproducts derived from the two-phase olive oil elaboration process [i.e., olive washing water (OWW), olive oil washing water (OOWW), and olive mill solid waste (OMSW)] in a closed-loop process. Initially, the microalga Raphidocelis subcapitata was grown using a mixture of OWW and OOWW as the culture medium, allowing phosphate, nitrate, sugars, and soluble chemical oxygen demand removal. In a second step, the microalgal biomass grown in the mixture of washing waters was used as a co-substrate together with OMSW for an anaerobic co-digestion process. The anaerobic co-digestion of the combination of 75% OMSW-25% R. subcapitata enhanced the methane yield by 7.0 and 64.5% compared to the anaerobic digestion of the OMSW and R. subcapitata individually. This schedule of operation allowed for integration of all of the byproducts generated from the two-phase olive oil elaboration process in a full valorization system and the establishment of a circular economy concept for the olive oil industry. |
| Author Keywords |
anaerobic co-digestion; olive washing water; olive oil washing water; olive mill solid waste; Raphidocelis subcapitata; nutrient removal; wastewater treatment; circular economy |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000776522800014 |
| WoS Category |
Agriculture, Multidisciplinary; Chemistry, Applied; Food Science & Technology |
| Research Area |
Agriculture; Chemistry; Food Science & Technology |
| PDF |
https://pubs.acs.org/doi/pdf/10.1021/acs.jafc.1c08100
|