Environmental Chemistry

An electrostatic precipitator uses electric charges to attract and remove fine particles (dust) from exhaust gases and can also capture certain gaseous pollutants when combined with wet scrubbing. It is widely used in industrial settings for air pollution control.

i. Composition: Bio-gas primarily contains methane (50–70%), carbon dioxide (30–40%), and traces of hydrogen sulfide, nitrogen, and water vapor.
ii. Benefits:
1. Renewable energy source.
2. Reduces greenhouse gas emissions.
3. Utilizes organic waste, reducing landfill use.
4. Provides clean fuel for cooking/heating.
Answer: i. Methane, CO , traces of H S, N ; ii. Renewable, reduces emissions, waste management, clean fuel.