At a Glance
-
$21M
Construction Value
- Location
- Edinburgh, Scotland
- Offices
-
-
Client
-
-
Scottish Water
-
-
Partners
-
-
MWHT
-
- Location
- Edinburgh, Scotland
- Offices
- Client
-
- Scottish Water
- Partners
-
- MWHT
Share
THP at Seafield Wastewater Treatment Works
When Scottish Water’s existing thermal dryers for biosolids treatment at the Seafield Wastewater Treatment Works (WwTW) were no longer the best economic, or environmental answer, our team was there to help.
Our team collaborated with Veolia on a solution to install a two-train system using the Cambi™ modular thermal hydrolysis process (THP) B6 process, two steam boilers, and associated equipment—designed for 100 tons dry solids of sludge a day. This process pasteurizes the leftover solids from wastewater treatment, including diverting the indigenous sludge to the new pre-thickener centrifuges. From there, the thickened sludge is transferred to a buffer silo. Once complete, energy recovery is amplified, and the 99.99% pathogen kill enables the diversion of the sludge from landfill and instead be used in agriculture.
Strict time limits for when each of the six digesters could be offline drove our team’s strategy of combining an aggressive ramp-up rate and conversion from conventional to THP. The digestion process was replicated and hydrolyzed in lab tests using sludge from Seafield to optimize the digester commissioning phase. The promising results from the testing allowed for an accelerated progression to full scale and confidence in the system to meet the performance guarantees.
At a Glance
-
$21M
Construction Value
- Location
- Edinburgh, Scotland
- Offices
-
-
Client
-
-
Scottish Water
-
-
Partners
-
-
MWHT
-
- Location
- Edinburgh, Scotland
- Offices
- Client
-
- Scottish Water
- Partners
-
- MWHT
Share
John Ord, Business Director, Energy & Resources
The UK energy business is changing rapidly. We assist our clients across the industry to shape and improve transitional and future energy projects.
Jonathan Maclaren, Technical Specialist, Energy
My goal is to deliver sustainable solutions that will help provide a better world and society for all.
We’re better together
-
Become a client
Partner with us today to change how tomorrow looks. You’re exactly what’s needed to help us make it happen in your community.
-
Design your career
Work with passionate people who are experts in their field. Our teams love what they do and are driven by how their work makes an impact on the communities they serve.