Figure 6From: Floating layer formation, foaming, and microbial community structure change in full-scale biogas plant due to disruption of mixing and substrate overloadingCFD simulations of the flow regime in the biogas plant with the rheology of the original substrate. (a) During normal operation. (b) With one broken paddle. The methanogenic reactor showed a good performance during normal operation; whereas the flow regime broke down and stagnant zones appeared when the reactor was only partially stirred.Back to article page