Water and Effluent Treatment Magazine
Issue link: https://fhpublishing.uberflip.com/i/323004
12 WET NEWS MAY 2014 Pioneering better supply chain partnering The Hydro Grit King installed at the Uttons Drove Water Recycling Centre. The Grit King is expected to achieve savings in pump repairs, breakdowns and the need to dig out grit • Expansion of a major water recycling centre in Cambridgesh- ire provided an Anglian Water with an opportunity to pilot a more streamlined approach to working with the supply chain in the run-up to AMP6. Hydro was also able to meet Anglian's con- ditions for tendering and supply as part of the initiative. T o meet the needs of a growing population, the capacity of Uttons Drove Water Recycling Centre is being expanded in a £10M project. It is the first project to be managed using an innovative new supply chain approach that is paving the way for Anglian to work with suppliers on a number of new and updated water recycling centres during the 2015-2020 spending round. "The overall objective of the initiative is to significantly reduce the cost and time taken in delivering a completed works, as well as the carbon footprint," explains John Grimm, Anglian Water project leader at Uttons Drove. "A principle source of cost and time overruns is the capital works and, in particular, concrete construction on site. We intend establishing the model process for Anglian Water with Uttons Drove that mini- mises on-site construction and streamlines installation, com- missioning and connections." Ease of installation As part of the project, Anglian Water chose Hydro's Grit King advanced hydrodynamic vortex separator as an economical solu- tion to protecting equipment downstream of the works inlet from the accumulation and wear of grits and abrasive sediments. "The Hydro Grit King pro- vided a good solution for Uttons Drove both in terms of its tech- nology and ease of installation," continues Grimm. "It was also important that Hydro's design team were extremely receptive to working with us in our com- puter-aided 3D modelling of the works." Grimm continues: "The Hydro Grit King offered us a rapid return on investment and will achieve savings in pump repairs, breakdowns and the need to dig out accumulated grit. In addition, the Grit King was delivered skid-mounted for easy installation and commis- sioning, which met our new sup- ply chain approach to procure- ment for major projects. At Uttons Drove, Anglian Water aimed to procure equipment that did not require extensive onsite civil works and as a result, the main inlet structure was completed in three weeks. Following construction of the bases, major plant deliveries to site were precisely scheduled and commissioning achieved in a reduced timeframe, reducing the construction costs such as retaining construction plant on site. Forward-planning The initiative also aims to achieve smoother commission- ing and connection of different parts of the process plant deliv- ered to site. Careful forward-planning before work begins on site helped to avoid incompatibility of connection between different items of plant, reducing com- missioning delays. All suppliers were asked to participate in early design phase consultations and to submit a 3D computer model compatible with the 3D model created by Anglian Water for the whole works. Grimm explains: "By using 3D modelling we can resolve commissioning issues before they arise, combining topogra- phy, process flow and details of all fittings, connections and so on. "Hydro's engineers showed us exemplary support and clearly understood the value of helping us to devise a new and better approach to project plan- ning. It is an approach we hope other suppliers will follow." The raw water intake at Uttons Drove is a mixture of combined sewers and dedicated foul water sewers, as well as some commercial waste water. On low flow volume days, all inlet water will first be processed through the Grit King, on storm days, a proportion will be diverted to a storm tank for set- tling. n "By using 3D modelling we can resolve commissioning issues before they arise" John Grimm, Anglian Water project leader, Uttons Drove TECHKNOW • The Hydro Grit King is an advanced hydrody- namic vortex separator that augments gravitational forces to separate grit from water • It can be delivered skid-mounted, factory-tested and can be connected up in three days • All suppliers were asked to participate in early design phase consultations and, also, to submit a 3D computer model compatible with the 3D model created by Anglian Water for the whole works • 3D modelling was used to resolve commission- ing issues before they arise, combining topogra- phy, process flow and details of all fittings and connections THE VERDICT • The Hydro Grit King offered a rapid return on investment and will achieve savings in pump repairs, breakdowns and the need to dig out accumulated grit • The project has paved the way for Anglian Water to work with suppliers on a number of new and updated water recycling centres during the 2015-2020 spending round • John Grimm, Anglian Water project leader, says: "Hydro's engineers showed us exemplary support and clearly understood the value of helping us to devise a new and better approach to project planning. It is an approach we hope other suppliers will follow." ONSITE 3D modelling PROJECT SPECS • Reducing the cost and time taken in delivering a completed works, as well as the carbon footprint • Finding an economical solution to protecting equipment downstream of the works inlet from the accumulation and wear of grits and abrasive sediments • Procuring equipment that did not require extensive onsite civil works - the main inlet structure was completed in three weeks SHARE YOUR OPINION... wnopinion@fav-house.com