Fig. 10From: Conversion of H2 and CO2 to CH4 and acetate in fed-batch biogas reactors by mixed biogas community: a novel route for the power-to-gas conceptProposed novel P2B scheme involving the AD fermentation residue storage tank as bio CH4 reactor, which converts CO2 from biogas or flue gas and H2 from electrolysis by renewable electricityBack to article page