Codford Biogas is a large processor of food waste located on the southern edge of Salisbury Plain. Methane is created through a process called Anaerobic Digestion by utilising food waste as a raw material. The methane generates combined heat and power (“CHP”). Power in the form of electricity is 100% renewable and exported to the national grid, while the heat is used in the Anaerobic Digestion process. The cycle of carbon capture is complete with the waste digestate spread back to land as a valuable biofertiliser, rich in Nitrogen (N), Phosphate (P) and Potassium (K). The digestate offsets the use of synthetic fertilisers to grow crops (wheat, barley and oilseed rape).Learn more
What is AD?
Anaerobic digestion is a complex biological process involving the breakdown of organic matter in the absence of air in large, sealed and insulated vessels with controlled heating and mixing. Food waste enters a sealed building where it is processed into a liquid porridge, and then pumped into temperature controlled sealed vessels known as digesters. It is here that bacteria feed on the food waste and produce biogas. Learn more
Waste and recycling
The Codford AD plant has been designed to handle a wide range of waste feedstocks. These can be in solid, liquid or sludge form, packaged or unpackaged. Out-of-date and damaged foods from retailers, supermarkets and factories or food waste from restaurants, pubs and hotels, offices, hospitals and schools. In addition, domestic kitchen food waste, waste from food processing factories, plus animal by-products (Category III) from the food industry, can all be proceessed by the plant.Learn more