RT journal article
T1 Bio-Energy Generation from Synthetic Winery Wastewaters
A1 Marks, Stanislaw
A1 Dach, Jacek
A1 García Morales, José Luis
A1 Fernandez-Morales, Francisco Jesus
A2 Tecnologías del Medio Ambiente
K1 winery wastewaters
K1 acidogenic fermentation
K1 bio-hydrogen
AB In Spain, thewinery industry exerts a great influence on the national economy. Proportional tothe scale of production, a significant volume of waste is generated, estimated at 2 million tons per year.In this work, a laboratory-scale reactor was used to study the feasibility of the energetic valorizationof winery e uents into hydrogen by means of dark fermentation and its subsequent conversioninto electrical energy using fuel cells. First, winery wastewater was characterized, identifying anddetermining the concentration of the main organic substrates contained within it. To achieve this,a syntheticwinery effluentwas prepared according to the composition of thewinerywastewater studied.This e uent was fermented anaerobically at 26  C and pH = 5.0 to produce hydrogen. The acidogenicfermentation generated a gas e uent composed of CO2 and H2, with the percentage of hydrogenbeing about 55% and the hydrogen yield being about 1.5 L of hydrogen at standard conditions perliter of wastewater fermented. A gas e uent with the same composition was fed into a fuel celland the electrical current generated was monitored, obtaining a power generation of 1W h L􀀀1 ofwinery wastewater. These results indicate that it is feasible to transform winery wastewater intoelectricity by means of acidogenic fermentation and the subsequent oxidation of the bio-hydrogengenerated in a fuel cell.
PB MDPI
SN 2076-3417
YR 2020
FD 2020-12
LK http://hdl.handle.net/10498/24346
UL http://hdl.handle.net/10498/24346
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026