RT info:eu-repo/semantics/article
T1 Enhancement of swine manure anaerobic digestion using membrane-based NH3 extraction
A1 Rivera Mejía, Fanny Maritza
A1 Villareal, Luis
A1 Prádanos del Pico, Pedro Lourdes
A1 Hernández Giménez, Antonio
A1 Palacio Martínez, Laura
A1 Muñoz Torre, Raúl
K1 Ammonia
K1 Amoniaco
K1 Anaerobic digestion
K1 Digestión anaeróbica
K1 Biogas
K1 Biogás
K1 Bioreactors
K1 Biorreactores
AB The influence of suspended solids and pH in anaerobically digested piggery wastewater on membrane-based NH3 extraction was evaluated in batch tests. The increase in pH in the anaerobic broth from 8 to 9 resulted in an increase in NH3 removal efficiencies from 15.8 % ± 0.1 % to 20.9 % ± 0.4 % regardless of the suspended solids. The influence of membrane based NH3 extraction on piggery wastewater treatment was also assessed in a CSTR interconnected with PTFE membrane modules. The decrease in TKN concentrations mediated by membrane operation induced an increase in CH4 yield from 380.4 ± 84.9 up to 566.1 ± 7.8 NmLCH4 g VS fed−1. Likewise, COD and VS removal efficiencies significantly increased from 33.0 % ± 2.0 % and 25.7 % ± 2.3 % up to 61.8 % ± 1.3 % and 37.9 % ± 1.8 %, respectively. Interestingly, the decrease in NH3 concentration entailed a complete assimilation of VFA.
PB Elsevier
SN 0960-8524
YR 2022
FD 2022
LK https://uvadoc.uva.es/handle/10324/54602
UL https://uvadoc.uva.es/handle/10324/54602
LA eng
NO Bioresource Technology, 2022, vol. 362, 127829
NO Producción Científica
DS UVaDOC
RD 17-jul-2024