Biogas – The source of future energy
The pH of the slurry has to be close to 7. This is pretty much
possible provided that cow dung is employed in the form of a substrate.
If favourable conditions may be provided then as much as sixty liters of biogas may
be produce for one kilogram of cow dung.
The digesters that are used for the purpose of production of biogas can be used in
mesophilic conditions, which mean a temperature range of 20 to 25 degrees Celsius
to 40 to 45 degrees Celsius. The digesters can also be run in thermophilic conditions,
where the temperature range is from 50 to 55 degrees Celsius to 60 to 65 degrees
Celsius.
Both these conditions call for separate species of bacteria. It is thought that the
mesophilic operations are more safe and stable than the thermophilic operations that
are capable of inactivating the parasites of animals and the various pathogens.
Nowadays
Waste management business Sterecycle owns patented technologies that are
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