Water and Effluent Treatment Magazine
Issue link: https://fhpublishing.uberflip.com/i/892603
26 ALLIANCES 2018 Arcadis, Pell Frischmann, Balfour Beatty and Interserve form part of another long- running consortium having been working with South West Water (SWW) as part of the utility's H5O engineering delivery alliance since 2009. As part of H5O, the partners are working on SWW's flagship £60M Mayflower water treatment works which will serve Plymouth and the surround- ing area. Arcadis is the main design contractor, in partnership with consulting engineer Pell Frischmann. Together they are responsible for all the design work outside of the key treatment process. Infrastructure group Balfour Beatty is the main construction contractor, in partnership with Interserve, responsible for the construc- tion of all infrastructure, buildings and pipelines for the new water treatment works. Interserve and Balfour The partnership between Hyder Consulting (now Arcadis) and Mott MacDon- ald has provided detailed design and project manage- ment services for the multimillion-pound expan- sion of Davyhulme wastewa- ter treatment works. United Utilities' Davyhulme treat- ment works is the largest in Beatty are carrying out major capital works for SWW while Pell Frischmann and Hyder are providing civil engineer- ing design services. Work on the facility is progressing well with the construction work involving around 7km of water mains pipeline – to connect the new site with the existing distribution network leading the North-west, serving a population of more than one million people and has iconic status as the site where modern wastewater treat- ment, specifically the aeration settlement process, was invented over 100 years ago. The upgrade will establish a further advancement in wastewater treatment, from Crownhill - and an additional 2km of on-site pipework. The works will use an innovative combination of treatment processes supplied by Dutch water company PWN Technologies, consist- ing of suspended ion exchange, inline coagulation and ceramic membrane filtration, followed by UV disinfection. adopting modern design and construction techniques such as building information modelling (BIM) and design for manufacture and assembly (DfMA). The modernisation programme is expected to improve the quality of water entering the Manchester Ship Canal and involves significant remediation of previously abandoned land. Following this, six circular primary settlement tanks and a large activated sludge plant with ten circular final settlement tanks will be constructed. The project team will use digital engineering, BIM and DfMA processes, allowing the plant to be built virtually before starting construction on site. All parties have previously used DfMA on similar wastewater treatment facilities and will use this experience to complete the works while the existing plant remains fully opera- tional. H5O PARTNERS Arcadis, Pell Frischmann; Interserve; Balfour Beatty CLIENT South West Water CONTRACT Delivering South West Water's K6 main capital engineering programme TERM Five years Hyder Mott MacDonald PARTNERS Arcadis, Mott MacDonald CLIENT United Utilities ALLIANCES 2018 H5O sails on with Mayflower WTW Hyder Mott MacDonald's consults on Davyhulme United Utilities' Davyhulme WwTW The new Mayflower WTW takes shape