Abstract:
The biogas technology is attributed with dual benefits in the form of supply of a clean
and high calorific fuel to meet the domestic fuel needs of rural areas and provision of
anaerobicaly digested slurry with high manurial value. In addition to this, it is known to
reduce the pathogenic load of night soil at a substantial level when toilets are attached to
the biogas plants. Hence, it is an eco-friendly technology helping to reduce the destruction
of forests by offering a fuel alternative to wood at the doorstep of the house and accruing
a social benefit in way of alleviation of the drudgery of women in collection of firewood and
cooking. It is also an environmentally sound technology as it provides a safe method for
disposal of organic waste preventing spread of diseases and controlling pollution. Considering
all these attributes together, the nutrient recovery through anaerobic digestion in
biogas plant represents a more economic and efficient option in obtaining good quality
manure for our farming system
