RT info:eu-repo/semantics/article
T1 Influence of pH on the performance of anaerobic piggery wastewater treatment coupled with membrane-based NH3 extraction
A1 Rivera Mejía, Fanny Maritza
A1 Sepúlveda Muñoz, Cristian Andrés
A1 Prádanos del Pico, Pedro Lourdes
A1 Hernández Giménez, Antonio
A1 Palacio Martínez, Laura
A1 Muñoz Torre, Raúl
K1 Aguas residuales Depuración
K1 Anaerobic digestion
K1 Piggery wastewater
K1 Biogas production
K1 Digestión anaeróbica
K1 Aguas residuales de pocilgas
K1 Producción de biogás
K1 3308.10 Tecnología de Aguas Residuales
AB The influence of the pH of piggery wastewater (PWW) on both ammonia recovery and anaerobic digestion performance during PWW treatment was evaluated in a continuous stirred tank reactor coupled with a membrane-based extraction module. The anaerobic digester was operated at a hydraulic retention time of 20 days at 37 °C, while the flat sheet PTFE membrane module operated continuously at liquid recirculation rates of 250 mL min−1. The membrane module was able to gradually decrease the total ammoniacal concentration from 1.27 ± 0.01 to 0.62 ± 0.01 g L−1 after 360 days of operation. Membrane-based NH3 extraction induced a CH4 yield increase of 1.3-fold. Moreover, COD and VS removal efficiencies increased up to 1.2-fold and 1.5-fold, respectively, along with the increase in PWW pH from 7.5 to 12. Total VFAs removal efficiencies were higher at a PWW pH of 9.
PB Elsevier
SN 2214-7144
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/63607
UL https://uvadoc.uva.es/handle/10324/63607
LA eng
NO Journal of Water Process Engineering, 2023, Vol. 55, 104226
NO Producción Científica
DS UVaDOC
RD 28-jun-2024