Keenan Recycling

Solution: Food waste recycling.   Owner: Keenan Recycling.   Strategy: Recycling and reuse

Fruit and vegetables in brown bags


Keenan Recycling is Scotland's largest food waste collection company. The business collects waste on behalf of waste management companies and councils. They also service restaurants, hospitals, prisons, and cafés and other businesses.

The food waste is loaded into anaerobic digester tanks and broken down by anaerobic bacteria over time. The methane produced by this process is used for electricity, gas and heating. The remaining by-product — digestateis used as a fertilizer.





Potential circular economy impact

This solution reduces the amount of food waste sent to landfill and/or incinerators. This reduces greenhouse gas emissions.

The biogas created from the food waste can be used for electricity, gas and heating, helping to reduce our reliance on fossil fuels. 

The by-product left behind from the biofuel production can also be used as fertiliser. This benefits soil and food production and reduces our reliance on artificial fertiliser.

This solution also encourages sorting at the source by residents and businesses.

What’s involved?

People: Collection company operatives; anaerobic digestion operatives; agro-food company; company/ies that can utilise biogas

Resources: Land; trucks; bins; anaerobic digester tank and system

Technology: Anaerobic digester tank

Implementation: Food waste collection evaluation; resource need evaluation; investment in services; operating services

More information

Keenan recycling website