title: Marine floating microbial fuel cell involving aerobic biofilm on stainless steel cathodes.
abstract: Here is presented a new design of a floating marine MFC in which the inter-electrode space is constant. This design allows the generation of stable current for applications in environments where the water column is large or subject to fluctuations such as tidal effects. The operation of the first prototype was validated by running a continuous test campaign for 6months. Performance in terms of electricity generation was already equivalent to what is conventionally reported in the literature with basic benthic MFCs despite the identification of a large internal resistance in the proposed design of the floating system. This high internal resistance is mainly explained by poor positioning of the membrane separating the anode compartment from the open seawater. The future objectives are to achieve more consistent performance and a second-generation prototype is now being developed, mainly incorporating a modification of the separator position and a stainless steel biocathode with a large bioavailable surface.
authors.affiliation: Laboratoire de Génie Chimique, CNRS, Université de Toulouse, 4 allée Emile Monso, 31029 Toulouse, France. benjamin.erable@ensiacet.fr
authors.forename: B
authors.initials: B
authors.lastname: Erable
authors.forename: R
authors.initials: R
authors.lastname: Lacroix
authors.forename: L
authors.initials: L
authors.lastname: Etcheverry
authors.forename: D
authors.initials: D
authors.lastname: Féron
authors.forename: M L
authors.initials: ML
authors.lastname: Delia
authors.forename: A
authors.initials: A
authors.lastname: Bergel
mesh_terms: D000332:Aerobiosis; D001674:Bioelectric Energy Sources; D018441:Biofilms; D019149:Bioreactors; D004566:Electrodes; D013193:Stainless Steel
chemical_list: D013193:Stainless Steel
keywords: Microbial anode; Microbial cathode; Microbial fuel cell; Seawater; Stainless steel