title: Using olive mill wastewater to improve performance in producing electricity from domestic wastewater by using single-chamber microbial fuel cell.
abstract: Improving electricity generation from wastewater (DW) by using olive mill wastewater (OMW) was evaluated using single-chamber microbial fuel cells (MFC). Doing so single-chambers air cathode MFCs with platinum anode were fed with domestic wastewater (DW) alone and mixed with OMW at the ratio of 14:1 (w/w). MFCs fed with DW+OMW gave 0.38 V at 1 kΩ, while power density from polarization curve was of 124.6 mW m(-2). The process allowed a total reduction of TCOD and BOD5 of 60% and 69%, respectively, recovering the 29% of the coulombic efficiency. The maximum voltage obtained from MFC fed with DW+OMW was 2.9 times higher than that of cell fed with DW. DNA-fingerprinting showed high bacterial diversity for both experiments and the presence on anodes of exoelectrogenic bacteria, such as Geobacter spp. Electrodes selected peculiar consortia and, in particular, anodes of both experiments showed a similar specialization of microbial communities independently by feeding used.
authors.affiliation: RICICLA GROUP, Dipartimento di Scienze Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Via Celoria 2, 20133 Milan, Italy; NAST Centre & Department of Chemical Science and Technology, University of Rome Tor Vergata, Rome, Italy.
authors.forename: Tommy Pepè
authors.initials: TP
authors.lastname: Sciarria
authors.affiliation: RICICLA GROUP, Dipartimento di Scienze Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Via Celoria 2, 20133 Milan, Italy.
authors.forename: Alberto
authors.initials: A
authors.lastname: Tenca
authors.affiliation: NAST Centre & Department of Chemical Science and Technology, University of Rome Tor Vergata, Rome, Italy.
authors.forename: Alessandra
authors.initials: A
authors.lastname: D'Epifanio
authors.affiliation: NAST Centre & Department of Chemical Science and Technology, University of Rome Tor Vergata, Rome, Italy.
authors.forename: Barbara
authors.initials: B
authors.lastname: Mecheri
authors.affiliation: Department of Food Environmental and Nutritional Sciences (DEFENS), University of Milan, Celoria 2, 20133 Milan, Italy.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Merlino
authors.affiliation: Department of Food Environmental and Nutritional Sciences (DEFENS), University of Milan, Celoria 2, 20133 Milan, Italy.
authors.forename: Marta
authors.initials: M
authors.lastname: Barbato
authors.affiliation: Department of Food Environmental and Nutritional Sciences (DEFENS), University of Milan, Celoria 2, 20133 Milan, Italy.
authors.forename: Sara
authors.initials: S
authors.lastname: Borin
authors.affiliation: NAST Centre & Department of Chemical Science and Technology, University of Rome Tor Vergata, Rome, Italy.
authors.forename: Silvia
authors.initials: S
authors.lastname: Licoccia
authors.affiliation: RICICLA GROUP, Dipartimento di Scienze Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Via Celoria 2, 20133 Milan, Italy.
authors.forename: Virgilio
authors.initials: V
authors.lastname: Garavaglia
authors.affiliation: RICICLA GROUP, Dipartimento di Scienze Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Via Celoria 2, 20133 Milan, Italy. Electronic address: fabrizio.adani@unimi.it.
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Adani
mesh_terms: D001674:Bioelectric Energy Sources; D018533:Biomass; D004560:Electricity; D063347:Native Polyacrylamide Gel Electrophoresis; D031658:Olea; D016133:Polymerase Chain Reaction; D062065:Wastewater
chemical_list: D062065:Wastewater
keywords: Biomass treatment; Domestic wastewater; Electricity generation; Microbial fuel cell; Olive mill wastewater