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Gardens flourish with Farringtons School food waste

20 January 2011

An accerlerated biodigester from BioNova is enabling an independent school to transform its food waste into a nutrient-rich soil enhancer for its gardens and grounds

Catering staff at Farringtons School (established 1911) in Chislehurst tip all the school’s kitchen food waste straight into a BioNova Biodigester, which in 72 hours or less converts it into material ready for immediate use.

Harry Scott, Catering Manager at Farringtons School, commented: “Our gardeners put the soil enhancer to excellent use and always have a decent supply, even during the school holidays. It’s great that we can make such a good product from our food waste – and as we aim towards getting as close as we can to 100% recycling for all of our waste, the BioNova machine represents a big benefit for the school and for environment”.

The energy-rich material produced from Farringtons School’s BioNova can also be utilised as a biofuel for a biomass boiler to provide heating and hot water. Odour-free and at £6 per tonne, very energy efficient, BioNova’s BioDigester is capable of treating 1,000 litres and upwards (no limit) of organic waste per week, and is fully compliant with landfill and ABPR (Animal By-Products) regulations relating to organic and process food waste. BioNova also offer an option for a separate fuel pod to convert waste cooking oil into biodiesel to run vehicles and mowers.

With the Renewable Heat Incentive (RHI) on its way in April 2011, those investing in BioNova equipment should benefit even further financially as eligible renewable heating technologies will receive long-term, fixed payments from the government.

Utilising bacteria, oxygen and heat to convert organic waste into a nitrogen-rich material, BioNova’s biodigester uses just 1kW hour to process between 10kg to 15kg. At 6p per kW hour, it equates to approximately £6 per tonne.


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