title: A grey box model of glucose fermentation and syntrophic oxidation in microbial fuel cells.
abstract: In this work, the fermentative and oxidative processes taking place in a microbial fuel cell (MFC) fed with glucose were studied and modeled. The model accounting for the bioelectrochemical processes was based on ordinary, Monod-type differential equations. The model parameters were estimated using experimental results obtained from three H-type MFCs operated at open or closed circuits and fed with glucose or ethanol. The experimental results demonstrate that similar fermentation processes were carried out under open and closed circuit operation, with the most important fermentation products being ethanol (with a yield of 1.81molmol(-1) glucose) and lactic acid (with a yield of 1.36molmol(-1) glucose). A peak in the electricity generation was obtained when glucose and fermentation products coexisted in the liquid bulk. However, almost 90% of the electricity produced came from the oxidation of ethanol.
authors.affiliation: University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N., 13071 Ciudad Real, Spain; University of Vigo, Department of Chemical Engineering, Isaac Newton Building, Campus As Lagoas, Marcosende, 36310 Vigo, Spain.
authors.forename: Maria
authors.initials: M
authors.lastname: de Los Ángeles Fernandez
authors.affiliation: University of Vigo, Department of Chemical Engineering, Isaac Newton Building, Campus As Lagoas, Marcosende, 36310 Vigo, Spain.
authors.forename: Maria
authors.initials: M
authors.lastname: de Los Ángeles Sanromán
authors.affiliation: University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N., 13071 Ciudad Real, Spain; Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Gabriela Narutowicza 11/12, 80-233 Gdansk, Poland.
authors.forename: Stanislaw
authors.initials: S
authors.lastname: Marks
authors.affiliation: Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Gabriela Narutowicza 11/12, 80-233 Gdansk, Poland.
authors.forename: Jacek
authors.initials: J
authors.lastname: Makinia
authors.affiliation: University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N., 13071 Ciudad Real, Spain.
authors.forename: Araceli
authors.initials: A
authors.lastname: Gonzalez Del Campo
authors.affiliation: University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N., 13071 Ciudad Real, Spain.
authors.forename: Manuel
authors.initials: M
authors.lastname: Rodrigo
authors.affiliation: University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N., 13071 Ciudad Real, Spain. Electronic address: FcoJesus.FMorales@uclm.es.
authors.forename: Francisco Jesus
authors.initials: FJ
authors.lastname: Fernandez
mesh_terms: D001674:Bioelectric Energy Sources; D002138:Calibration; D004560:Electricity; D004583:Electrons; D004867:Equipment Design; D000431:Ethanol / Q000737:chemistry; D005285:Fermentation; D005947:Glucose / Q000737:chemistry*; D007700:Kinetics; D019344:Lactic Acid / Q000737:chemistry; D010100:Oxygen / Q000737:chemistry*
chemical_list: D019344:Lactic Acid; D000431:Ethanol; D005947:Glucose; D010100:Oxygen
keywords: Ethanol; Fermentation; Glucose; Microbial fuel cell; Modeling