Biogas production from waste biomass with the help of methanogenic bacteria is

Options

A. One step process
B. Two step process
C. Theree step process
D. Multistep process

Answer

### Step-by-Step Solution:

1. **Understanding Biogas Production**:
Biogas is a renewable energy source produced from the anaerobic digestion of organic matter, such as agricultural waste, manure, municipal waste, and other biodegradable materials. The key players in this process are methanogenic bacteria.

2. **Role of Methanogenic Bacteria**:
Methanogenic bacteria are a group of microorganisms that thrive in anaerobic (oxygen-free) environments. They play a crucial role in breaking down organic matter and converting it into biogas, primarily composed of methane (CH4) and carbon dioxide (CO2).

3. **The Three-Step Process of Biogas Production**:
- **Step 1: Hydrolysis**: In this initial step, complex organic materials (like carbohydrates, fats, and proteins) are broken down into simpler compounds (sugars, fatty acids, and amino acids) by the action of hydrolytic bacteria. This step is essential for making the organic matter more accessible for further digestion.

- **Step 2: Acidification**: The simpler compounds produced during hydrolysis are then converted into volatile fatty acids (VFAs) and other organic acids by acidogenic bacteria. This step results in the production of hydrogen (H2) and carbon dioxide (CO2), which are crucial for the next stage of the process.

- **Step 3: Methane Formation**: In the final step, methanogenic bacteria convert the volatile fatty acids and hydrogen into methane and carbon dioxide. This step is where the actual biogas is produced, making it a vital part of the overall process.

4. **Conclusion**:
The production of biogas from waste biomass with the help of methanogenic bacteria occurs through a three-step process: hydrolysis, acidification, and methane formation. Therefore, the correct answer to the question is that biogas production involves a three-step process.