Koch, Konrad; Huber, Bettina; Fernández, Yadira Bajón; Drewes, Jörg E.
Methane from CO2: Influence of different CO2 concentrations in the flush gas on the methane production in BMP tests
Abstract The influence of carbon dioxide (CO2) in the headspace gas on the specific methane (CH4) production of blank samples with just inoculum during Biochemical Methane Potential (BMP) tests was studied. The headspace of the bottles had been flushed with 15 different ratios of CO2 and N2 prior to incubation, while they were treated otherwise identically. The results revealed that the CH4 yield increased linearly with higher ratio of CO2 in the flush gas reaching a 30