BIOGAS    

Cogeneration | Biomass Power | Biomass Briquetting | Biomass Gasifier | Wood Burning Stoves | Waste to Energy  

   Overview

• Biogas is a mixture of methane ( 55 – 65 ) & CO₂ ( 30 – 40 ) with traces of SO₂ & H₂. (Calorific Value 21000 – 25000 kJ/kg)

• Biogas is produced by Anaerobic digestion of biomass

• Anaerobic digestion involves the microbial digestion of biomass in the absence of air

• Anaerobic digestion is carried out by anaerobic bacteria which is a micro organism that lives and grows without air and oxygen.

• Biogas generation is a chemical process of decomposition of organic matter like animal dung, agro   residues, wood wastes etc. in the absence of oxygen 

   

    Application

• Biogas is mainly used for cooking & lighting. It can also be used for space heating and as fuel in internal combustion engines to drive generators for electricity  generation.

  Technology 

•  Biogas plants constructed to produce biogas comprises :

  • An airtight compartment called digester

  • Gas holder with guide frame and

  • Gas distribution system

• Digester is constructed with cement brick, sand and concrete. Animal manure mixed with water is stirred  and kept  inside the digester

• Anaerobic digestion takes place and biogas is produced which can be used directly for cooking and other applications.

    Benefits of using Biogas for Cooking

• Replaces firewood and kerosene

• Reduces smoke & provides cleaner environment

• Protects drudgery of women

•  Improves rural sanitation

•  Helps in minimizing deforestation and improves ecological balance

    End Users

• House holds who posses cattle farm are the main beneficiaries. The size of the biogas plant depends on the number of cattle population and family members.