food wastee equals energy equation

Our AD Process

Anaerobic digestion is a natural, simple process, based on similar principles to the human digestive system. It's already widely used in Europe to treat food and other types of waste. Now Local Generation has incorporated some of the world's latest, safest and most reliable technology into its plants here in Britain.

A Local Generation AD plant handles all types of waste: solid or liquid, packaged or unpackaged, efficiently and effectively.

At the plant, we sort and process all products to form a slurry mixture, which is heated and pasteurized. Organic materials are then broken down by micro-organisms in tanks with no oxygen – the ‘anaerobic’ part of the process.

The process produces biogas, which is high in methane and similar to natural gas. The gas is used to fire one or more engines and these in turn generate electricity. As the engines turn, they also generate large amounts of heat. This can be used to provide local domestic and commercial heating and hot water.

Throughout our plants, all AD processes are carried out to the highest standards as set out in ISO 14001 and in line with PAS110 the Quality Protocol for the Digestate produced by Anaerobic Digestion.

Green energy – and more

All this green energy is great, but at Local Generation, we go further: the heat produced is used back in the pasteurisation process and another by-product is an effective soil conditioner, making farmers less reliant on inorganic fertilisers.

3 trees

Anaerobic digestion is capable of making a significant contribution to the UK's energy target… We predict biogas can achieve two thirds of the 2020 target - providing 10 percent of the 15 percent required. No other technology will allow the UK to meet that target.

Charlotte Morton, Chief Executive, Anaerobic Digestion and Biogas Association (ADBA)