Discover more about our Bioresources business

Did you know that every year we treat around 185,000 tonnes of sewage sludge? You may think this is where the process stops when you flush, but there’s much more to what we do!

After your waste goes down the loo, it’ll end up at one of our 569 wastewater treatment works. From here we can transport the sludge to one of our 37 bioresource treatment facilities where we can use digestion technologies to safely and compliantly treat sewage sludge ready for use. From here we use sewage sludge to generate energy. We can covert waste into electricity to power our sites and biogas provides a renewable energy source that can be fed to the National Grid.

Waste not want not!

The treated material, called Biosolids is provided to local farmers which can be used as a high quality fertilizer and the rest goes to our incinerator facility, right here in the North West.

We’re accredited

We’ve been awarded accreditation from the Biosolids Assurance Scheme. This certifies that our treatment and recycling activities meet regulatory requirements and best practice. We are audited every year by an independent Certification Body to ensure that we conform to the scheme standards.

Biosolids Assurance Scheme website (BAS)

Looking to the future

Ofwat is changing its regulatory approach for bioresources to promote market development and innovation. We’re working with a range of organisations involved in bioresources services to optimise transport, treatment, recycling and disposal to deliver benefits for our customers and environment.

Bioresources RCV allocation

As part of the revised regulatory approach, bioresources will be treated as a separate price control in the PR19 process. To support this process and to help to ensure that this is achieved in a way which will provide a level playing field for bioresources trading and processing, Ofwat asked water and sewerage companies (WASCs) to submit their proposed allocation of the wastewater RCV to bioresources. The overview of UUW’s submission is available on the “looking to the future” section of our website.

Bioresources market information

To enable potential market participants to identify opportunities to supply services in the treatment, transport, recycling and disposal of bioresources, we are providing information of our bioresources activities in our sewage sludge production sites known as wastewater treatment works (WwTWs) and bioresources treatment facilities (BTCs). The information for 2020/21 can be downloaded here. 

Download report