Anaerobic Digestion of Food Waste
ReFood UK is the UK's leading operator of AD facilities custom designed and built to handle food wastes diverted from landfill.
There are currently 11 ReFood plants operating in Europe - 5 in Germany, 4 in France and 2 in the UK. A further 5 plants are being built in Germany and 2 in France.
The ReFood AD plants operate as integrated recycling units, processing a variety of food wastes to produce renewable electricity, heat and ReGrow, a nutrient-rich fertiliser for local farms. The plants also recycle the food waste packaging. The plants provide an environmentally-sustainable solution for all waste producers looking for a safe method of diverting food waste from landfill.
ReFood's first UK AD plant opened in September 2011 in Doncaster, South Yorkshire and was expanded in 2014. The plant processes approximately 160,000 tonnes of food waste per annum, collected from local shops, restaurants and cafes as well as residues from SARIA Group's petfood production plant.
The Doncaster ReFood plant generates just under 5MWh of renewable energy, which is used to power the Doncaster site and supply the national grid; the plant also features a high-efficiency heat recovery system which supplies heat and hot water to the adjacent Oils and Fats refinery.
The second ReFood plant in the UK at Widnes opened in June 2014; a third site at Dagenham in East London has received planning approval and construction is due to commence shortly. Whereas Doncaster uses the biogas produced by AD to fuel the CHP engines, Widnes refines the biogas to produce bio-methane which is then exported to the National gas grid to replace fossil fuel.