In: Civil Engineering
What could be the implication(s) in the following case?
1 The feed solids concentration too low and insufficient biogas generated during anaerobic digestion.
2 Lack of proper lubrication of the gearbox mechanism of the digester
3 Allowing air into the digester when withdrawing of supernatant phase
4 Sludge pumping (primary sedimentation) is too low.
.5 Sludge pumping (primary sedimentation) is too high
6 Accumulation of debris on mechanical bar screens during
preliminary treatment.