Balfour Beatty Civil Engineering Ltd

Davyhilme Waste Water Treatment

Customer: United Utilities

Scope:
Unit 1:
Servicing Primary Settlement tanks and Activated Sludge Plant Capacity - 140,000 m3/h

Unit 2:
Servicing Sludge Process Facility Capacity - 44,000   m^3/h

Technology:

• Venturi Scrubber
• 3 Stage Chemical Scrubbing
• Carbon Polishing

Key Issues:
A key issue is the need to maintain plant operability and maintenance access following covering of large lands. Birse water developed a bespoke use of geodesic aluminium covers on circular tanks - innovative development of ventilated maintenance corridor to facilitate access to scraper system.

Basis for success:
Extensive use of Three - Dimensional Computer Modelling to facilitate complex installation sequences - minimising plant downtime. All designs take into account subsequent requirements for effective operations and maintenance.

Benefits
Successful delivery of this project was built around an effective partnership between Birse Water and its affiliate company Alderley Birse Alliance (ABAL) http://www.abalsolutions.co.uk/

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