200 Organic waste recycling: technology and management
a) Earthen stove with mixing groove
b) Biogas lamps
Figure 4.17 (a) Biogas stove and (b) lamp (after McGarry and Stainforth 1978;
reproduced by permission of the International Development Research Centre, Canada
Biogas spurt holes
Biogas air inlet
Biogas air inlet
Biogas-air
mixing groove
Air inlet
Biogas inlet
Mantle
Air inlet
Biogas and air mixing
chamber
Air inlet
Biogas inlet
Mantle
Lamp
glass
Hanging biogas lamp Standing biogas lamp
Earthen
foot
Rootstock
of lotus