Electrochemical micro-structuring of graphite felt electrodes for accelerated formation of electroactive biofilms on microbial anodes.

Bibiana Cercado Quezada (1) , Marie-Line Délia (1) , Alain Bergel (1)

1 LGC - Laboratoire de Génie Chimique

Electroactive biofilms were formed on graphite felt anodes under constant potential polarisation using compost leachate as the inoculum and dairy waste as the substrate. A new surface treatment is presented that consists of creating micro-cavities on the electrode surface by strong anodisation. This surface treatment, combined with pre-adsorption of the dairy waste, proved very efficient in accelerating the formation of electroactive biofilms and increasing the current values up to 1600 mA/m2 for dairy waste oxidation.

Mots clés: Microbial anode; Microbial fuel cell; Electrochemical pre-treatment; Graphite felt; Dairy waste

Domaines: Génie chimique; Microbiologie et Parasitologie; Energie électrique

Bibiana Cercado Quezada, Marie-Line Délia, Alain Bergel. Electrochemical micro-structuring of graphite felt electrodes for accelerated formation of electroactive biofilms on microbial anodes.. Electrochemistry Communications, 2011, vol. 13 (n° 5), pp. 440-443. ⟨10.1016/J.ELECOM.2011.02.015⟩. ⟨hal-03539291⟩