5. Working
About 80 kg of wet cow dung was mixed uniformly in
batches of 10kg in 15 litres of water to create a consistent
mixture. This was poured into the digester tank which was
then filled with water till water reached the overflow
mark. The gas chamber is mounted on the digester. The
tank is left undisturbed for 5 days. The gas burner is
ignited and blue flame of methane is observed. Now the
digester is ready to receive food waste