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  Section: General Biotechnology / Biotechnology & Environment
 
 
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Biomass : A Renewable Source of Energy

 
     
 
Terrestrial Biomass
Since long, terrestrial biomass has been used to fulfill the need of food, feed, vegetables, fiber, furniture and cooking purpose as well. Traditionally the need of fire/fuel was fulfilled by trees, remains of agricultural crops, and fossil fuels (coal, and petroleum). During the course of time, we totally became dependent on conventional energy sources of fossil fuel arid electricity. But gradually increasing world wide human population and diminishing stock of fossil fuel have challenged us to seek out the alternative sources of energy.

Swaminathan (1980) has emphasized for “photosynthetic model of development”. This model is applicable for India and other developing countries. However, the extent and nature of this model may vary with energy demand of that country.
 

Content

Energy sources : A general account 

 

Nuclear energy

 

Fossil fuel energy

 

Non-fossil and non-nuclear energy

Biomass as source of energy

 

Composition of biomass

 

 

Cellulose

 

 

Hemicellulose

 

 

Lignin

 

Terrestrial biomass

 

Aquatic biomass

 

 

Salvinia

 

 

Water hyacinth

 

Wastes as renewable source of energy

 

 

Composition of wastes

 

 

Sources of wastes (Industries, agriculture, forestry, municipal sources)

Biomass conversion

 

Non-biological process

 

 

Direct combustion-hog fuel

 

 

Pyrolysis

 

 

Gasification

 

 

Liquefaction

 

Biological process

 

 

Enzymatic digestion

 

 

Anaerobic digestion

 

 

Aerobic digestion

 

 
     
 
 
     



     
 
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