Environmental Microbiology of Aquatic and Waste Systems

Fig. 10.17 Anaerobic digester (From Okafor 2007. With permission)

From house

Inlet tee Outlet tee

Wastewater

Sludge

Scum

Screen

Riser Manhole Riser

To additional treatment

and/or dispersal

Fig. 10.18 Vertical
section of a septic tank
(Credit: US Environmental
Protection Agency,
USEPA; Anonymous
2005b)