Phylogenetic identification of a hydrogel complex composed of microbially reduced graphene oxide and sewage sludge. GO-respiring enrichment culture

Graphene oxide (GO) was recently shown to be an excellent anode substrate for exoelectrogens, such as Geobacter species. The enrichment of exoelectrogenic bacteria can be achieved on GO by using an electron acceptor, together with the acetate oxidization, which leads to the formation of a self-aggregated hydrogel anode with the microbially reduced GO (rGO). We investigated the applicability of GO as the anode for electricity recovery from sewage wastewaters. The project investigated prokaryotic composition of the electrically polarized two different anode-microbes complexes. i.e. rGO-micobes complex and graphite felt-microbes complexes.