2026-04-27T12:55:05Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/599722025-02-21T12:31:53Zcom_10324_35294com_10324_952com_10324_894col_10324_35295

Regueira Marcos, Lois Muñoz Torre, Raúl García Depraect, Octavio 2023 Producción Científica The effect of hydraulic retention time (HRT) on the continuous lactate-driven dark fermentation (LD-DF) of food waste (FW) was investigated. The robustness of the bioprocess against feast/famine perturbations was also explored. The stepwise HRT decrease from 24 to 16 and 12 h in a continuously stirred tank fermenter fed with simulated restaurant FW impacted on hydrogen production rate (HPR). The optimal HRT of 16 h supported a HPR of 4.2 L H2/L-d. Feast/famine perturbations caused by 12-h feeding interruptions led to a remarkable peak in HPR up to 19.2 L H2/L-d, albeit the process became stable at 4.3 L H2/L-d following perturbation. The occurrence of LD-DF throughout the operation was endorsed by metabolites analysis. Particularly, hydrogen production positively correlated with lactate consumption and butyrate production. Overall, the FW LD-DF process was highly sensitive but resilient against transient feast/famine perturbations, supporting high-rate HPRs under optimal HRTs. application/pdf https://uvadoc.uva.es/handle/10324/59972 eng Elsevier Fermentación Medio ambiente, Ingeniería del 3308 Ingeniería y Tecnología del Medio Ambiente Continuous lactate-driven dark fermentation of restaurant food waste: Process characterization and new insights on transient feast/famine perturbations info:eu-repo/semantics/article TEXT UVaDOC. Repositorio Documental de la Universidad de Valladolid Hispana