Minworth is Severn Trent’s largest sewage treatment works serving an equivalent population of 1.75 million from Birmingham. The plant treats sludge from an equivalent population of 2.5 million.

The Brief 

Pick Everard was appointed to support the expansion of the site’s capacity, including the design of a new inlet works, a new 7th and upgrade of the existing 6 ASPs, and additional PST capacity.

The developments also targeted process improvement to ensure a greater quantity of fresher sludge was directed to the digesters to enhance production of renewable energy from the 9MVA generation station.

Our Response 

Tight time constraints necessitated quick definition of work packages and design prioritisation to enable civil design and construction to commence at an early stage. This required a change in mind set. The team was established in an office with capacity for 100 staff co-located on site.

Understanding the site specific constraints was critical to the design development. Liaison with operations staff was essential to define the list of capital maintenance items requiring upgrade and to ensure discharge consents were complied with throughout the construction works.

Key Facts

  •  Environmental impact minimised by promoting best practice and maintaining the wildlife diversity on the site.
  • A WRAP (Waste & Resources Action Programme) analysis has confirmed 51% use of recycled material.
  • A committed fully integrated approach to safety of all personnel on site has resulted in a ROSPA award for the project.

Project Information

Client: Severn Trent Water

Value: £150 million