Achieving through quality


Anaerobic digestion (AD)



The process of anaerobic digestion occurs when oxygen is removed from biodegradable waste material storage facilities; this forces them to break down the material, creating methane and other gases. Almost any biomass can be processed in AD; including food waste, energy crops, crop residues, slurry and manure. AD can accept waste from our homes, supermarkets, industry and farms, meaning less waste will go to landfill.

The treatment of biodegradable waste in this way also helps to reduce the gas emitted by landfills into the atmosphere. By harnessing the gasses produced through anaerobic digestion, it is possible to create alternative fuels for power, thus helping to replace the use of fossil fuels. The material left over at the end of the process is rich in nutrients so it can be used as fertiliser.

Through continued investment in the latest technology, we are developing AD plants as a means of reducing not only our own carbon footprint, but those of landfill sites across the UK. According to the Renewable Energy Association, if all the UK's domestic food waste was processed by AD, it would generate enough electricity for 350 000 households.

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