Imtech awarded £34m AAD scheme for Northumbrian Water

18 February 2011

Continuing in the move towards energy self sufficiency and sustainable wastewater treatment, Imtech Process, as part of a GTM joint venture with Galliford Try, has been awarded a £34 million contract for the delivery of the Advanced Anaerobic Digestion (AAD) Project at Howdon Sewage Treatment Works (STW) for Northumbrian Water.

Northumbrian Water’s Sludge Strategy includes AAD at its two largest sludge treatment centres. When fully optimized, these sludge treatment centres will have the capacity to treat up to 80,000tds/year. This will cover all of in Northumbrian Water’s sludge production.

Due for completion by September 2012, the Thermal Hydrolysis AAD plant at Howdon STW will predominantly treat the indigenous sludges from the site, together with some imported sludges from other satellite treatment works.

The project comprises of the design, construction, commissioning and optimization of a complete new AAD plant including a two stream thermal hydrolysis plant.

Commented Steve Milling, Imtech Operations Manager : “This is a very exciting project for us. We have been involved in the design and construction of AD projects for some time and the performance of these plants has exceeded our expectations. We aim to deliver Howdon right first time through learning from previous experience at these other sites.”

The move towards AAD at Howdon has been a major decision for Northumbrian Water and the “skills and experience demonstrated by Imtech Process and Galliford Try throughout the tender period has given us confidence in their ability to deliver this critical scheme for Northumbrian Water” explained Donna Rawlinson, Northumbrian Water Project Manager.

For further information on Imtech Process and its work with AD and Howdon in particular, please contact Imtech Process Business Development Manager, Duncan Wildgoose on 01543 496600 duncan.wildgoose@imtech.co.uk