Biogas is a perfect example of the circular economy
Using waste to generate clean energy and heat, biogas processes contribute to solving the biodegradable waste problem. Odourless organic fertilizers that can be used for agriculture are created during the biogas processes as a side product. Bearing in mind the size and importance of the agricultural sector in Europe, biogas projects also help to create a better environment to support the further development of the sector.
Biogas installations take in biowaste, such as plant waste (corn or grass sillage, grains and crops), food waste (from households and producers), manure from farms and sewage sludge and put it through a special fermentation process called anaerobic digestion.
Anaerobic digestion is a natural sustainable process that occurs without oxygen and during which micro-organisms break down organic matter, such as that mentioned, above into renewable energy (biogas) and high-quality fertilizers (digestate).
Biogas can generate electricity and heat. It can also be upgraded to produce sustainable gas – biomethane for injection into the gas grid. By using organic products beyond the end of their service life, biogas is the perfect example of the circular economy.