Evolution5 are pleased to announce their continued involvement as Client’s Commercial Manager for £220m upgrade works to the Crossness Sewage Treatment Works, which will continue well into 2014.
The improvements to the existing Works will enable it to treat 44 per cent more sewage, significantly reducing the amount of storm sewage that overflows into the River Thames during heavy rainfall when the site becomes overloaded.
Full Project Case Study
Crossness Sewage Treatment Works (STW) in East London is one of the largest treatment works in the UK, serving approximately two million people. The upgrade project of the 70 hectare site forms part of Thames Water’s London Tideway Improvements programme.
Thames Water appointed Tamesis, a joint venture between Laing O’Rourke and Imtech Process, as the contractor for the Crossness STW upgrade.
The scheme includes:
• The complete refurbishment of the Crossness STW Inlet Pumping Station;
• Construction of a new elevated preliminary treatment works;
• A new wastewater treatment stream to include primary settlement, aeration basins and final settlement tanks;
• Sludge storage and thickening equipment;
• Extensive refurbishment and upgrading of the existing works;
• Comprehensive power management improvements;
• Additional odour-control for elements of the new and existing plant;
• Environmental enhancements at the Crossness Nature Reserve and the Southern Marshes, including creating a suitable habitat for water voles and birds.
The project also includes the installation of a wind turbine to be erected, which will provide 2.3MW of renewable energy to help offset site power requirements. When combined with the renewable energy generated from advanced digestion of sewage sludge it should generate a considerable amount of the total power required.
Our role
Darren Foy, Evolution5’s Commercial Director, was appointed by Mott MacDonald to administer the variation account for the project on behalf of Thames Water.
