and digestate, were conducted. It was demonstrated that the stripping performance is negatively correlated to the CO2 level in
the strip gas with a progressive performance loss towards higher concentrations. In contrast to biogas
with its high CO2 content, the efficiency reduction observed for flue gas was significantly less pronounced. The later provides the additional benefit that its high thermal energy can be re-utilized in
the stripping unit and it is therefore considered a viable alternative for air.
2015 The Authors. Published by Elsevier Ltd. This is an openaccessarticle under the CC BY-NC-ND license