Figure
4. Different configurations for TH+AD, regarding feed segregation
and steam generation devices.
(a)
Scheme A: No feed segregation: mixed sludge to the TH unit.
(b)
Scheme B: Feed segregation: only secondary sludge to the TH unit.
(c)
Burning the biogas in a boiler to produce power.
(d)
Burning the biogas in an engine or turbine to produce power and
generate electricity.
|