| Title |
Enhanced Biomethanation: The Impact of Incorporating Fish Waste on the Co-Digestion of Pig Slurry and Orange Pomace |
| ID_Doc |
8911 |
| Authors |
Silva, J; Fragoso, R |
| Title |
Enhanced Biomethanation: The Impact of Incorporating Fish Waste on the Co-Digestion of Pig Slurry and Orange Pomace |
| Year |
2023 |
| Published |
Energies, 16.0, 16 |
| DOI |
10.3390/en16165860 |
| Abstract |
Anaerobic digestion technology can play a significant role in the transition to a low-carbon and circular economy by producing bioenergy (biomethane) and organic fertilizer (digestate). This study proposes a valorization approach for three waste streams widely produced in the Mediterranean area: fish waste (FW), pig slurry (PS), and orange pomace (OP). The FW lipid content can enhance biomethane yield as long as inhibition by long-chain fatty acids is prevented. In this study, the effect of introducing 25% and 50% FW to the anaerobic co-digestion of a reference mixture consisting of 80% PS and 20% OP pulp (OPP) was studied. Co-digestion using 50% FW presented the maximum biomethane yield (669.68 & PLUSMN; 8.32 mL CH4/g VSadded), which corresponds to a 37% increase compared to the reference. No inhibition was detected during the anaerobic digestion assay. The kinetic study showed that the introduction of FW led to a reduction in the degradation rate constant by up to 30%. The lag phase increased as FW content increased, with 50% FW presenting a lag time approximately three times that of the reference mixture. The proposed strategy can encourage sustainable waste management practices and contribute to GHG emissions mitigation. |
| Author Keywords |
bioenergy; biomethane; degradation constant; lag time; lipids content |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001055740500001 |
| WoS Category |
Energy & Fuels |
| Research Area |
Energy & Fuels |
| PDF |
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