Industrially scalable surface treatments to enhance the current density output from graphite bioanodes fueled by real domestic wastewater.

ABSTRACT: Acid and electrochemical surface treatments of graphite electrode, used individually or in combination, significantly improved the microbial anode current production, by +17% to +56%, in well-regulated and duplicated electroanalytical experimental systems. Of all the consequences induced by surface treatments, the modifications of the surface nano-topography preferentially justify an improvement in the fixation of bacteria, and an increase of the specific surface area and the electrochemically accessible surface of graphite electrodes, which are at the origin of the higher performances of the bioanodes supplied with domestic wastewater. The evolution of the chemical composition and the appearance of C-O, C=O, and O=C-O groups on the graphite surface created by combining acid and electroche

SUBMITTER: Roubaud E 

PROVIDER: S-EPMC7907815 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature