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Black & Veatch chosen for £150M Mogden sewage works upgrade

Thames Water has selected Black & Veatch as principal contractor for the £150M upgrade and extension of Mogden Sewage Treatment Works in West London.

Construction will start in spring 2010 and is due to be completed in 2013. As principal contractor, Black & Veatch is responsible for the engineering, procurement and construction of the extended works.

Black & Veatch managing director Tony Collins said: “The Mogden project is a great opportunity for Black & Veatch to deliver a first class plant for Thames Water and its customers. We have a great team in place who can call on Black & Veatch’s expertise from anywhere in the world to add value to the project.” 

The project will significantly reduce the amount of storm sewage that overflows into the River Thames during heavy rainfall, when excess flow passes through inefficient storm tanks and overflows into tidal stretches of the Thames.

The improvements at Mogden will allow for a six per cent population increase until 2021, and enable the site to treat more than 50% more sewage than at present. They will also help reduce odour at the site − one of the conditions upon which planning permission was granted, after residents’ complaints led the London Borough of Hounslow to serve an odour abatement notice on Thames Water in 2001.

Around 40% of the energy required to treat storm and wastewater will be generated onsite from renewable biogas – a byproduct of the sewage treatment process.

The project builds on Black & Veatch’s 20 year relationship with Thames Water.

Readers' comments (1)

  • It would be of interest to waste water engineers to know exactly what the improvement works comprise.

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