title: Bacterial-fungal interactions enhance power generation in microbial fuel cells and drive dye decolourisation by an ex situ and in situ electro-Fenton process.
abstract: In this work, the potential for sustainable energy production from wastes has been exploited using a combination fungus-bacterium in microbial fuel cell (MFC) and electro-Fenton technology. The fungus Trametes versicolor was grown with Shewanella oneidensis so that the bacterium would use the networks of the fungus to transport the electrons to the anode. This system generated stable electricity that was enhanced when the electro-Fenton reactions occurred in the cathode chamber. This configuration reached a stable voltage of approximately 1000 mV. Thus, the dual benefits of the in situ-designed MFC electro-Fenton, the simultaneous dye decolourisation and the electricity generation, were demonstrated. Moreover, the generated power was effectively used to drive an ex situ electro-Fenton process in batch and continuous mode. This newly developed MFC fungus-bacterium with an in situ electro-Fenton system can ensure a high power output and a continuous degradation of organic pollutants.
authors.affiliation: Chemical Engineering Department, University of Vigo, Isaac Newton Building, Campus As Lagoas Marcosende, 36310 Vigo, Spain.
authors.forename: María Ángeles
authors.initials: MÁ
authors.lastname: Fernández de Dios
authors.forename: Araceli González
authors.initials: AG
authors.lastname: del Campo
authors.forename: Francisco Jesús
authors.initials: FJ
authors.lastname: Fernández
authors.forename: Manuel
authors.initials: M
authors.lastname: Rodrigo
authors.forename: Marta
authors.initials: M
authors.lastname: Pazos
authors.forename: María Ángeles
authors.initials: MÁ
authors.lastname: Sanromán
mesh_terms: D001673:Biodegradation, Environmental; D001674:Bioelectric Energy Sources / Q000382:microbiology*; D019149:Bioreactors / Q000382:microbiology; D003116:Color; D004396:Coloring Agents / Q000378:metabolism; D004560:Electricity; D004573:Electrolytes / Q000737:chemistry; D006861:Hydrogen Peroxide / Q000378:metabolism*; D007501:Iron / Q000378:metabolism*; D008086:Lissamine Green Dyes / Q000378:metabolism; D056265:Microbial Interactions / Q000502:physiology*; D020592:Shewanella / Q000502:physiology*; D055454:Trametes / Q000502:physiology*
chemical_list: D004396:Coloring Agents; D004573:Electrolytes; C045076:Fenton's reagent; D008086:Lissamine Green Dyes; C024537:green 5; D006861:Hydrogen Peroxide; D007501:Iron
keywords: Advanced oxidation technology; Decolourisation; Dye; Electro-Fenton; MFC