It is high time we shift to renewable and green energy sources. The extensive and aggressive consumption of our limited natural resources will only result in climate change where there will be a lack of diversity, extinction of species, and rise in global warming. If we don’t take action now then the planet may face uninhabitable conditions in a few decades.
Biogas is green and renewable energy that we may consider. Biogas plants produce renewable energy through anaerobic digestion. This biological process breaks down organic matter without oxygen, resulting in biogas made up of methane, carbon dioxide, and other gasses. The main component of a biogas plant is the anaerobic digester, where microorganisms break down organic material and produce biogas.
What is Biogas?
Biogas is a gaseous fuel that can be utilised like any other fuel. It mostly contains methane gas which is obtained through the fermentation of organic matter. Most commonly agricultural and cattle waste is utilised in this process to generate biogas. When cow dung is used in the process to make biogas, it is called gobar gas. Gobar gas is a term that originated in India because gobar is the Hindi word for cow dung.
This Biogas is purified further to remove impurities like hydrogen sulphide, carbon dioxide and water vapour. After the successful purification, it is compressed and transformed into Compressed Biogas (CBG). This CBG has properties like Compressed Natural Gas and hence can be utilised as automotive fuel.