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Proving the concept of sewage sludge pyrolysis

Proving the concept of sewage sludge pyrolysis

Challenge: Breakthrough 4: Transform
Water cycle: Waste Water Treatment
Funding amount: £6,205,773
Lead water company: Thames Water
Partner water companies: Southern Water Yorkshire Water
Delivery stage: In progress
Est. completion date: Aug 2027

Proving the concept of sewage sludge pyrolysis

Amount awarded: £6,205,773

Led by: Thames Water

Partners: Cranfield University, Helsinki Region Environmental Services (HSY), Southern Water, Stantec Ltd, Uisce Éireann, Yorkshire Water

Further details on Proving the concept of sewage sludge pyrolysis are available on the Thames Water website.

We aim to deliver the first continuously operating, sludge-fed UK-based pyrolysis demonstration plant. Pyrolysis (a high temperature process with no oxygen present) can be used to recycle sludge to maximise the value of biosolids; ensuring a circular economy and reducing the requirement for sludge to be recycled to agricultural land.

“Sludge is a resource not a waste, it contains nutrients required for plants and usable energy. This investment opens the door for a circular economy approach and can contribute to net zero carbon, enhance the environment and add operational resilience, therefore providing a sustainable future for biosolids management.” – Nevil Muncaster, Engineering & Asset Director, Thames Water

Update from the project (April 2025)

The project is currently in the procurement phase, as we seek an appropriate OEM and delivery partner to supply, install, and commission the pyrolysis pilot plant. Together, we’re setting a new standard for resource recovery and driving innovation across the water industry. 

Resources

For more information on Proving the concept of sewage sludge pyrolysis, take a look at the following resources: