Fig. 2
From: One-step production of C6–C8 carboxylates by mixed culture solely grown on CO
Reactor performance during the continuous operation of 199 days. a Cumulative CO consumption in mmol. b Cumulative gas production of CO2, H2, and CH4 in mmol. c DOC (dissolved organic carbon) and DIC (dissolved inorganic carbon). d DN (dissolved nitrogen). e pH and ORP (oxidation–reduction potential). The blocks labeled with I, II, III, IV, V, VI and VII indicate the seven phases during continuous feeding