An anaerobic digester at Nestle’s chocolate factory at Fawdon in Newcastle has helped the company hit its zero waste to landfill target for the plant.
The system converts four tonnes of solid waste and 200,000 litres of liquid waste daily in order to produce 200kW of electricity, or 8% of the factory’s energy requirements.
Waste from brands such as Rolo, Toffee Crisp and Caramac is fed into the digester to produce biogas.
Since the system was installed a year ago, Nestle says the factory has reduced its greenhouse gas emissions by 10% and improved the quality of discharged water.
Nestlé sustainability manager Andrew Griffiths said: “We’re proud to announce that one year on from launch, we’ve achieved our target of zero waste to landfill at our Fawdon factory, thanks to the installation of a new anaerobic digester.
“The system allows us to convert a large amount of waste that would otherwise enter sewage, used as feed stock or landfill systems and generate methane and other greenhouse gas emissions.”
Nestlé wants none of its 150 European factories to be sending waste to landfill by 2020.