2026-04-27T21:21:56Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/546022025-01-30T12:54:36Zcom_10324_35294com_10324_952com_10324_894col_10324_35295

Rivera Mejia, Fanny Maritza Villareal, Luis Prádanos del Pico, Pedro Lourdes Hernández Giménez, Antonio Palacio Martínez, Laura Muñoz Torre, Raúl 2022-08-29T09:16:20Z 2022-08-29T09:16:20Z 2022 Bioresource Technology, 2022, vol. 362, 127829 0960-8524 https://uvadoc.uva.es/handle/10324/54602 10.1016/j.biortech.2022.127829 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. eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ © 2022 The Authors Atribución 4.0 Internacional Enhancement of swine manure anaerobic digestion using membrane-based NH3 extraction info:eu-repo/semantics/article