“A mixture of methane and carbon dioxide produced by the bacterial decomposition of organic wastes and used as a fuel”. Biogas is a naturally produced environmentally friendly biofuel. It’s a renewable energy source that is produced from decomposed organic matter such as food or animal waste by breaking them down into microorganisms in the absence of oxygen through a process called anaerobic digestion.
In lame man terms, it’s just the process of fermenting wastes without oxygen to convert them into a source of energy that can be further used for different processes.
Compared to solid biomass and fossil fuels, biogas energy has a reduced carbon footprint. In addition to being a renewable green source, it reduces the nitrogen and methane pollutants from agricultural and animal wastes that would eventually run off into water bodies or landfills.
Yes, using biogas fuel does produce carbon dioxide and methane which eventually are captured by plants are used again reused and converted into valuable and clean energy. Therefore biogas is carbon neutral energy.
In compost piles or landfills, enteric fermentation naturally generates biogas.
It is created artificially in anaerobic digesters when animal and food wastes are decomposed without oxygen.
In contrast to biomass and fossil fuels, biogas produces less carbon dioxide while also reducing the nitrogen and methane emissions produced when wastes are stored.