Research Article

Improved Design of Anaerobic Digesters for Household Biogas Production in Indonesia: One Cow, One Digester, and One Hour of Cooking per Day

Figure 2

System diagram and digester designs: (a) system diagram showing the layout of the various components ((A) digester vessel; (B) gas sampling port; (C) foam trap; (D) bubbler; (E) displacement gas meter; (F) biogas exhaust; (G) gas meter counterweight)); (b) construction schematic of the laboratory-scale Indonesian model digester used for , , and ((A) influent port - 3.8 cm I.D. PVC elbow; (B) biogas outlet line; (C) digester body - 10.0 cm I.D. PVC pipe; (D) sampling port; (E) effluent port - 3.8 cm I.D. PVC elbow)); (c) construction schematic for , which is the same as in (b), but a mixing rod has been added ((A) mixing wire and (B) internal mixing rod).
318054.fig.002a
(a)
318054.fig.002b
(b)
318054.fig.002c
(c)