Step 1: Define Biogas.
- Biogas is a renewable source of energy produced by the microbial degradation of organic matter in the absence of oxygen (anaerobic conditions). It primarily consists of methane (CH₄), carbon dioxide (CO₂), and traces of other gases.
Step 2: Biogas Production Process.
- Biogas is produced through the process of anaerobic digestion where organic waste (like plant materials, animal manure, and food waste) is broken down by microorganisms.
- The process occurs in biogas digesters, where microbes decompose the organic matter and release methane gas.
Step 3: Microbe Involved in Biogas Production.
- The key microorganisms involved in biogas production are methanogens, which are a group of archaebacteria that produce methane during anaerobic respiration.
Final Answer:
Biogas is a mixture of methane and carbon dioxide produced by anaerobic digestion of organic matter. Methanogens are the microbes responsible for biogas production.