Irton Water Treatment Works
Sweco as part of the Morgan Sindall Sweco Joint Venture (MS2JV) was appointed by Yorkshire Water to undertake works to resolve water quality issues at Irton WTW.
Through the implementation of a rigorous Risk and Value process, Sweco designed a solution that addressed the Clients business risks and provided a £17m saving against the notional solution.
The project was designed in a digital environment utilising Revit. The 3D model being utilised to to allow operators to undertake a virtual site inspection to identify / mitigate any operational issues ahead of construction.
Feasibility Study, Process Design, Optioneering, BIM, Geotechnical Investigations, Environmental Surveys, Environmental permit applications, Stakeholder Management, Hydraulic Analysis, Civil & Structural Engineering Design, MEICA Design, Cost Assessments.
Irton WTW supplies two Service Reservoirs in the Scarborough area; Springhill and Low Mount, these feed Scarborough and the surrounding area. Demand profiles are seasonably variable. The site has an abstraction licence for 23.5TCMD. On average, the works supplies around 16TCMD.
The investigation, risk and value process concluded that the Ozonation stage would not provide good value. The solution at Irton included:
- Modifications to Actiflo distribution
- New inlet manifold to RGFs for equal flow distribution
- New interstage pumping station
- New Granular Activated Carbon (GAC) plant
- New contact tanks
- Chemical delivery, storage and dosing installations
- Ancillary works, static mixer chambers, new internal roads and a de-chlorination chamber
- HV / LV power upgrade
The solution provided by MS2JV contained innovative processes and construction materials new to Yorkshire Water. These included adsorbion vessels constructed in steel for the GAC process and cylindrical above ground HDPE weholite tanks for the contact tanks.