Biogas is a mixture of different gas produced by the, break down of organic molecules, in the absence of Oxygen .
It is a fuel and can be used for cooking ,running vehicles , electricity generation etc.
So the primary advantage is that, stinky decaying wastes changes into fuel in an environment, totally cutoff from outside.
Hence, in the waste management concept ,,its safe ,it wont emit bad smell ,it provides clean energy.
No human effort is needed ,, feeding the waste is as simple as washing your hands in washbasin .
Overnight ,the biogas bacteria will do all the hard work for you ,and in the morning, the waste will disappear and you will get valuable renewable energy.
Waste generation is an everyday phenomena ,so do biogas formation ,hence both work hand in hand to solve waste management problems and forever
Thank you