Question

What is composition of bio-gas?

Hint:

Bio-gas is a sustainable solution for both energy production and waste management, making it environmentally friendly.

Answer 1

Step 1: Understanding Bio-Gas Composition.
Bio-gas is a renewable energy source produced through the anaerobic digestion of organic matter. The main components of bio-gas are:
- Methane (CH₄): 50-70% – The primary component that provides energy.
- Carbon Dioxide (CO₂): 30-40% – The second largest component, which is non-combustible.
- Nitrogen (N₂): 0-5% – A minor component.
- Hydrogen Sulfide (H₂S): Small amounts – Often present in trace amounts and can be corrosive.
- Water Vapor (H₂O): Trace amounts – Present as vapor in the gas.
Step 2: Conclusion.
The primary components of bio-gas are methane and carbon dioxide, with smaller amounts of nitrogen, hydrogen sulfide, and water vapor.
ii. Mention any four benefits of bio-gas.
Solution:
Step 1: Benefits of Bio-Gas.
- Renewable energy source: Bio-gas is a renewable source of energy that can be used for cooking, lighting, and generating electricity.
- Reduces greenhouse gas emissions: By utilizing organic waste, bio-gas production helps in reducing harmful greenhouse gases such as methane from landfills.
- Fertilizer by-product: The digestate (leftover residue) from bio-gas production is a nutrient-rich fertilizer.
- Waste management: Bio-gas production helps manage organic waste by converting it into energy, reducing waste accumulation.
Step 2: Conclusion.
Bio-gas offers numerous benefits, including being a renewable energy source, reducing greenhouse gases, providing organic fertilizer, and managing waste.