Explain in brief biogas production process with the help of a labelled figure.
OR
What is biogas? Write in brief about the production process.

Explanation

1. Biogas: The gaseous fuel produced by microbial fermentation is known as biogas.
2. Production of biogas: The biogas production involves the following three proceses:
1. Anaerobic digestion: The species of clostridium and Pseudomonas bring about he anaerobic digestion of plant and anima wasters. Owing to this, the complex insoluble polymers are convered into monomers as shown under:
`"Polymers" overset("Anaerobic bacteria")(to)"Monomers"`
2. Acidogenesis: During this process the monomers are converted into organic acids with the help of acidogenic bacteria as shown below:
`"Monomers" overset("Acidogenic bacteria")(to)"Organic acids"`
3. Methanogenesis: This is the last step of biogas production. In this, the organic acids are converted into methane and `CO_(2)` as shown under:
`"organic acid"overset("Methanogenic bacteria")(to) "Methane" +CO_(2)+"other gases"`