Our Biogas

Biogas is formed in a process known as anaerobic digestion where organic material is decomposed by micro organisms in an oxygen free environment. In this process, many different micro organisms participate in several interactive and simultaneous processes resulting in the decomposition of complex organic compounds such as carbohydrates, fats and proteins. The final resultant products are methane and carbon dioxide. This is a natural phenomenon that can be observed in many environments with limited oxygen, such as in stomachs of cows, in bogs or rice paddies. Biogas can be used to provide heat, electricity or both. By removing other gases, biogas can be 'upgraded' to pure methane, often called biomethane. This biomethane can then be injected into the main gas grid and with its rich in nutrientsthe the remaining material can be used as a fertiliser.

The main sources of biomethane are all untreated organic materials such as all animal excrements or waste landfills. Many forms of biomass are suitable for AD and among those the most common are: Sugar cane, green cuttings, maize-/grass- and whole-plant silage, corn, hay/straw, slops, grain tailings, glycerin, pomace, dry poultry droppings, poultry/turkey manure, cattle and pig manure, food waste, floating sludge, rumen/stomach content, slaughter wastes and blood.

Through the usage of micro-organisms which digest the biomass a methane-rich biogas can be produced to generate renewable heat and power. This helps to cut fossil fuel use and reduce greenhouse gas emissions.