| Title |
Valorization of apple pomace for biogas production: a leading anaerobic biorefinery approach for a circular bioeconomy |
| ID_Doc |
10226 |
| Authors |
Ampese, LC; Sganzerla, WG; Ziero, HD; Costa, JM; Martins, G; Forster-Carneiro, T |
| Title |
Valorization of apple pomace for biogas production: a leading anaerobic biorefinery approach for a circular bioeconomy |
| Year |
2024 |
| Published |
Biomass Conversion And Biorefinery, 14, 13 |
| DOI |
10.1007/s13399-022-03534-6 |
| Abstract |
Apples are among the most consumed fruits worldwide, being consumed as fresh fruit or either processed into juice, vinegar, cider, and others. The by-products generated by apple processing industry are usually discarded without further application. This study addressed the valorization of apple pomace using dry anaerobic digestion technology in semi-continuous mode. The operational parameters, volatile fatty acids, microbial community, and biogas production were evaluated during 40 days of digestion. The potential for bioenergy production, avoided greenhouse gas emissions, and the energy balance were calculated to determine the possibilities for implementing an anaerobic biorefinery in the apple processing industry. The results showed a microbial community of the reactor composed of bacteria (97.5%) and Archaea (2.5%), where Amphibacillus was the dominant genus. The methane yield obtained was 36.61 L CH4 kg(-1)TVS(removed), which can generate 1.92 kWh ton(-1) of electricity and 8.63 MJ ton(-1) of heat, avoiding 0.62 kg CO2-eq ton(-1) apple pomace submitted to anaerobic digestion. The bioenergy recovered could supply 19.18% electricity and 11.15% heat of the anaerobic reactor used in the designed anaerobic biorefinery process. In conclusion, anaerobic digestion can be a promising approach for the management of apple pomace, decreasing greenhouse gas emissions and contributing to the circular economy transition of the apple processing industry. |
| Author Keywords |
Anaerobic digestion; Biomass; Organic waste; Biomethane; Bioenergy; By-products |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000883278800004 |
| WoS Category |
Energy & Fuels; Engineering, Chemical |
| Research Area |
Energy & Fuels; Engineering |
| PDF |
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