RT info:eu-repo/semantics/article
T1 Energy and Nutrients from Apple Waste Using Anaerobic Digestion and Membrane Technology
A1 González-García, Isabel
A1 Riaño, Berta
A1 Molinuevo-Salces, Beatriz
A1 García-González, María Cruz
AB The worldwide increment of food waste requires innovative management solutions, aligned with sustainability, energy, and food security. Anaerobic digestion (AD), followed by nutrient recovery, may be considered an interesting approach. This study proposed a co-digestion of apple pomace (AP) with swine manure (SM) to study the effect of different proportions of AP (0, 7.5, 15, and 30%, on a volatile solids (VS) basis) on the methane production and the stability of the process. Subsequently, the gas-permeable membrane (GPM) technology was applied to recover nitrogen (N) as ammonium sulfate (bio-based fertilizer) from the digestates produced after the AD of 7.5% of AP and SM, and SM alone. The results showed that the co-digestion of 7.5% and 15% of AP with SM presented a methane production similar to the AD of SM alone (with 412.3 ± 62.6, 381.8 ± 134.1, and 421.7 ± 153.6 mL g VS−1 day−1, respectively). The later application of the GPM technology on the resulting digestates, with SM alone and with 7.5% of AP with SM, showed total ammoniacal N recovery rates of 33 and 25.8 g N m−2 d−1, respectively. Therefore, the AP valorization through the AD process, followed by N recovery from the digestate, could be a good management strategy.
PB MDPI
YR 2022
FD 2022
LK https://uvadoc.uva.es/handle/10324/81006
UL https://uvadoc.uva.es/handle/10324/81006
LA eng
NO González-García, I., Riaño, B., Molinuevo-Salces, B., & García-González, M. C. (2022). Energy and Nutrients from Apple Waste Using Anaerobic Digestion and Membrane Technology. Membranes, 12(9), 897.
DS UVaDOC
RD 11-abr-2026