WET News

Digital engineering for the totex environment • Digitalisation of the design and construction process as well as the use of intelligent piping and instrumentation diagrams made for a successful outcome on the Oldham and Royton Integrated Strategy (ORIS) wastewater treatment project l Providing a common lan- guage for discussing plant functionality Black & Veatch's Information Management and Analytics team has extended P&IDs' potential by configuring exclu- sive soware to enhance func- tionality. The soware – com- patible with standard design tools such as OpenPlant – facili- tates the creation of schedules populated with equipment information that can be used to expedite commissioning activi- ties, as well as generate asset ONSITE DIGITAL ENGINEERING A 'single version of the truth' is available throughout the asset's lifecycle Fig 1: P&ID for the Interstage Pumping Station at ORIS (non-intelligent output from iP&ID application) T he use of intelligent piping and instrumentation dia- grams (iP&ID) can play a key role the digitalisation of design and construction process on water industry projects, as exemplified by the recent Old- ham and Royton Integrated Strategy (ORIS) wastewater treatment project. Embedding digital tools during the capital delivery phase has the potential to yield legacy benefits later in the asset's lifecycle. Overlay- ing the capital delivery and asset management spheres is important in a totex environment. A P&ID shows the piping and related components of a physical process flow – in the case of ORIS, a wastewater 18 WET NEWS APRIL 2018 | wwtonline.co.uk the data is relative, current and available from a live, single version of the truth. ORIS: DIGITAL DIAGRAMS IN ACTION The project United Utilities' Oldham waste- water treatment works (WwTW) and Royton WwTW are major wastewater treatment facilities in Oldham, northeast of Man- chester. The Oldham and Roy- ton Integrated Strategy (ORIS) project will combine the func- tions of both sites into a single, integrated solution, meeting both wastewater treatment and wastewater network drivers. The project requires the decommissioning of Royton WwTW and creating a 4.2km sewer to transfer flows for- merly treated at Royton to Old- ham WwTW. The Oldham works will be expanded to manage the increased capacity and the standard of treatment increased to meet new dis- charge consents. Stormwater storage capacity at both sites will be expanded, so excess flows can be retained and released for treatment when capacity at Oldham WwTW allows. The main design/build contract was awarded to Black & Veatch in Spring 2015, with a project approved budget of £78.2 million. The existing Oldham WwTW treats a population equivalent (PE) of 157,000, and Royton treats a PE of 28,000. Both works discharge into the tribu- taries of the River Irk. The ORIS project will ensure compliance with two new requirements: Oldham WwTW Freshwater Fish Directive – a higher final effluent consent of 6 mg/l BOD and and 1mg/l ammonia; and Oldham and Royton Storm Tank UIDs – both WwTWs storm discharges were deemed to be unsatisfactory intermit- tent discharges (UID). treatment process. They pro- vide a schematic illustration of the functional relationship of piping, instrumentation and equipment components used for performance measurement, or functional control. P&ID's functions include: l Designing a conceptual schematic representation of the WwTW l Evaluating construction interfaces and supplier scope boundaries l Forming recommendations for cost estimates, equip- ment and pipe design l A basis for the system con- trol programming l A basis for operations and maintenance documentation l A basis for a Hazards in Operation (HAZOP) Study inventories, as extensions of the P&ID. Using Excel as part of the user interface enables data from virtually any source – cli- ents, suppliers, subcontractors and other Black & Veatch pro- fessionals – to be incorporated into the iP&ID's database. For example, details such as phys- ical size, connection flange, power rating, flow capacity, part number, cost and manu- facturer for each pump in the treatment process can be stored in the P&ID database. The synchronisation of the database and the P&ID so- ware makes the asset identifi- cation tag the common link between the two, relating asset information directly to the dia- gram symbol. These intelligent P&IDs (iP&ID) allow the extrapola- tion of a BIM environment 3D model with 4D (time) and 5D (financial, such bas unit costs) data. This functionality sources data from a common database, ensuring that throughout an asset's lifecycle,

• Cover