RT journal article
T1 Effects of several inocula on the biochemical hydrogen potential of sludge-vinasse co-digestion
A1 Tena Villares, Miriam
A1 Pérez García, Montserrat
A1 Solera del Río, María del Rosario
A2 Tecnologías del Medio Ambiente
K1 Biochemical hydrogen potential
K1 Inoculum
K1 Sludge
K1 Vinasse
K1 Anaerobic co-digestion
K1 Eubacteria
AB The influence of the inoculum on the Biochemical Hydrogen Potential test (BHP) was investigated. Thermophilic BHP from sludge-vinasses co-digestion (50:50) was studied employing three types of inocula: Acidogenic Inoculum, Sludge Inoculum and Thermal Sludge Inoculum. The maximum hydrogen yield was obtained with a sludge inoculum (177 mL H2/g VSadded). This yield was 21 and 36% higher than for acidogenic inoculum and thermal sludge inoculum, respectively. The results revealed that the choice of inoculum had significant impact on the hydrogen yield and the sludge inoculum is the most beneficial for BHP tests. The percentages between Eubacteria:Archaea increased from 59.2:40.8 to 92.0:9.0 during BHP tests using the sludge inoculum while it remained stablish in the others cases around 50:50. Furthermore, hydrogen production was accompanied by the generation of volatile fatty acids, mainly acetic, butyric and propionic acids. There were no differences in the rate of hydrogen production in any of the BHP.
PB ELSEVIER
SN 0016-2361
YR 2019
FD 2019-12
LK http://hdl.handle.net/10498/22438
UL http://hdl.handle.net/10498/22438
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026