Cassington AD Plant Case Study

Oxfordshire County Council required a waste management solution to divert 22,000 tonnes of kerbside collected, source segregated food waste each year from landfill. It also required a solution to help minimise the impact of commercial food waste in the county.

To provide the council with a cost effective solution that is at the top of the government’s waste hierarchy, Agrivert financed, designed, built and now operates an anaerobic digestion (AD) facility near Cassington, Oxfordshire. Cassington AD facility was built in 9 months and commenced operation in September 2010. The facility provides a local food waste treatment plant that is extremely efficient, has a low carbon footprint, generates renewable energy and also provides local farmers with a high quality organic fertiliser product. It can process up to 50,000 tonnes of solid and liquid food waste per year. Cassington AD plant treats both municipal and commercial waste.

As well as diverting food waste from landfill, the AD plant generates 2.1 MW of renewable electricity, which is sufficient to power over 4,000 homes. This energy is generated from the 4.5million m3 of methane that the AD plant captures each year (which may otherwise be released to the atmosphere at landfill) – the equivalent of removing 71,000 cars from the road. The digester also produces enough rich, organic fertiliser to replace chemical fertilisers over a 3,000 hectare area.

Contact us to discuss your food waste requirements in more detail.