Thames Water has gone out to tender with a major new AMP7 contract to design, construct and commission an upgrade to the current Beckton Sewage Treatment Works (STW) in Essex worth up to £80 million.
Beckton, Thames Water’s and the UK’s largest STW, is located in the London Borough of Newham, east of London on the north bank of the River Thames. The upgrade works are to provide for growth, resilience and consent compliance to a design horizon of 2036 with the population equivalent (PE) projected to be 4. 5 million-plus.
Scope of the contract includes:
- upgrade and extension to the Inlet Works to cater for pro-longed periods of operation of the Tideway pumping station
- sludge improvements
- site wide capital maintenance
- engineering design services.
- provision of medium screens and screenings handling plant at the Existing Inlet Works
- extension to ASP4 secondary treatment process capacity to provide resilience against growth, the operation of the Tideway pumping station and high ammonia load peaks during storm loading conditions
- provision of pumping station’s diesel powered generators,
- provision of ASP3 additional blower capacity including new Blower House buildings or containerised solutions to provide resilience against high ammonia load peaks during storm loading conditions
- additional sludge buffering and balancing tanks, and raw sludge thickening capacity to provide resilience against Sludge Stream bottle-necks restricting Final Effluent Stream operation
- capital maintenance works for replacement and upgrade of transformers and switchboards
- modifications to the power management system, SCADA (supervisory control and data acquisition) and tiled mimic panel.
The contract award is expected to be made in November 2019 and the project is required to be complete by September 2023.
Time limit for receipt of tenders or requests to participate is 11th March 2018 – click here to access the tender documentation.
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