Food Waste

Eco_Sustainable_Solutions_ Food-Waste

We accept kerbside and commercial food waste from the local area, treating it through our state of the art Anaerobic Digestion (AD) facility. 

Anaerobic digestion is the process by which organic matter, such as animal or food waste, is broken down to produce biogas and biofertiliser. This process happens in the absence of oxygen in a sealed, oxygen-free tank called an anaerobic digester.

Our Process

Our AD process is outlined below:

1. The local authority organise a rubbish collection service where food waste caddies are collected and loaded onto rubbish trucks in bulk.

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2. The food waste material is then transferred to Piddlehinton, Dorset where our AD facility is homed.

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3. The material is fed into a large blender where it is processed.

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4. The food waste is mixed with water to create a liquid which has a porridge like consistency, called substrate.

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5. The food waste passes through a washing machine which is designed to extract the plastics and metals.

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6. The waste is then fed into a holding tank where it is kept for 3 days. This allows for a consistent feed and operation of the plant. 

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7. The substrate is then pumped into the digester & stirred.   

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8. The mix is kept in this tank for 55 days. A little bit is fed in and a little bit is fed out every day.   

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9. The biogas is formed which is analysed and filtered before being used as a renewable fuel for onsite Combined Heat and Power (CHP) Units, which generate heat (used to pasteurise the liquid) and electricity (to power the feed mill next door).

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10. The spent liquid is then pasteurised in accordance with PAS110 standard before being tested and stored, ready to be applied to local thirsty agricultural land as an organic fertiliser.

End Results

The two outputs from the Anaerobic Digestion process are as follows:

  • Biogas - which fuels the CHP units supplying local heat and power.
  • Digestate - A nutrient rich biofertiliser, used on local agricultural land to improve organic and nutrient content for crops and vegetation.

Additional Info

The food waste is processed using anaerobic digestion (AD). Not only is this a form of recycling but the process also creates a renewable energy that fuels the plant - win win!

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Facts & Data


Through the AD process, Eco manufactures 40,000 of biofertiliser each year, which is fully PAS110 certified.

Memberships & Accreditations

  • ORG Logo

  • WRA Logo
  • BSI Logo
  • ISO14001 Logo

If you would prefer to speak to one of our dedicated customer service team please call us 

01202 593601

Site Opening hours: Mon to Fri: 7am - 5pm & Sat: 7am - 12:00pm

Office Opening hours: Mon to Fri: 8am - 5pm

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