Methods for optimisation of the biogas yield in manure based biogas plants. EFP-2004.J.nr. 33030-0017.

The main objective is to investigate and suggest methods for increasing the biogas yield in manure based biogas plants with focus on the following 3 areas:
1)to investigate different reactor configurations for biogas plants for achieving more effective biogas production and more stable operation.
2)to investigate operational procedures, aiming to selectively retain/return degradable material in the reactor.
3)to investigate methods for degradation of undegraded material, by returning without/with aftertreatment to the main reactor.