RT info:eu-repo/semantics/article
T1 Biohydrogen production by lactate-driven dark fermentation of real organic wastes derived from solid waste treatment plants
A1 Martínez Fraile, Cristina
A1 Muñoz Torre, Raúl
A1 Simorte, María Teresa
A1 Sanz, Inmaculada
A1 García Depraect, Octavio
K1 Dark fermentation
K1 Food waste
K1 OFMSW
K1 Leachate
K1 Mixed sludge
K1 hidro
AB This study evaluated the hydrogen production potential through lactate-driven dark fermentation (LD-DF) of organic wastes from solid waste treatment plants, including the organic fraction of municipal solid waste (OFMSW), mixed sewage sludge, and two OFMSW leachates. In initial batch fermentations, only OFMSW supported a significant hydrogen yield (70.1 ± 7.7 NmL-H2/g-VS added) among the tested feedstocks. Lactate acted as an important hydrogen precursor, requiring the presence of carbohydrates for sequential two-step lactate-type fermentation. The impact of operational pH (5.5–6.5) and initial total solids (TS) concentration (5–12.5 % w/w) was also evaluated using OFMSW as substrate, obtaining hydrogen yields ranging from 6.6 to 55.9 NmL-H2/g-VSadded. The highest yield occurred at 6.5 pH and 7.5 % TS. The LD-DF pathway was indicated to be present under diverse pH and TS conditions, supported by employing a specialized microbial consortium capable of performing LD-DF, along with the observed changes in lactate levels during fermentation.
PB Elsevier
SN 0960-8524
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/73065
UL https://uvadoc.uva.es/handle/10324/73065
LA eng
NO Bioresource Technology, 2024, vol. 403, 130846
NO Producción Científica
DS UVaDOC
RD 05-feb-2025