Firms to assist wastewater treatment works expansion

Consulting firms Mott MacDonald and Hyder Consulting have been appointed by the Laing O’Rourke Imtech joint venture to assist in the expansion of the UK Davyhulme wastewater treatment works. The Hyder-Mott MacDonald joint venture will provide design and project management services.

Davyhulme wastewater treatment
The Davyhulme treatment works is the largest wastewater treatment works in the north west of the UK, serving a population of more than one million people, and is the site where modern wastewater treatment, specifically the aeration settlement process, was invented over 100 years ago. To further advance wastewater treatment, the site needs to be upgraded to adopt modern design and construction techniques, including building information modelling (BIM) and design for manufacture and assembly (DfMA).

The modernisation of the treatment works involves remediation of previously abandoned land in advance of the construction of six circular primary settlement tanks (PST) and one large activated sludge plant (ASP) with 10 circular final settlement tanks (FST). The work is expected to provide significant environmental benefits for the site, improving the outflow, and subsequently the quality, of water entering the Manchester Ship Canal. 

To execute the expansion, United Utilities appointed the Laing O’Rourke Imtech (LORI) joint venture, which in its turn hired the Hyder-Mott MacDonald joint venture to assist with design and project management services. Rob Dunstan, technical director with Hyder-Mott MacDonald joint venture, says: “The Hyder Mott MacDonald JV is delighted to be collaborating with LORI on this prestigious project.  The approach to the design will be industry leading and will make full use of BIM technology to ensure a world class solution that stands the test of time.”

The expansion of the Davyhulme wastewater treatment works is expected to be finalised in 2018.