Distributed Temperature Sensing - Anglian Water Trial
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Distributed Temperature Sensing - Anglian Water Trial. Fola Ogunyoye 18 th March 2013. Royal HaskoningDHV. Global engineering and environmental consultancy Largest engineering consultancy in Peterborough Leader in water’s edge sustainability and innovation
Distributed Temperature Sensing - Anglian Water Trial
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Distributed Temperature Sensing - Anglian Water Trial Fola Ogunyoye 18th March 2013
Royal HaskoningDHV • Global engineering and environmental consultancy • Largest engineering consultancy in Peterborough • Leader in water’s edge sustainability and innovation • Top 10 of independently owned, non-listed companies • 8,000 staff worldwide
Introduction to DTS DTS = Distributed Temperature Sensing Measuring temperature along a fibre-optic cable in a sewer pipe Method to identify inflows in sewer pipes
Why DTS • Very rich and visual data, allowing targeted response • Unprecedented type of information from sewer system • Significant detail in both time and space – not a snapshot • Low level of interference and cost effective • Intelligent identification of problem within sewer system • Successful where many other approaches have failed
Methods of deployment Standard monitoring set-up Riooloctopus
Applications: storm sewers flow direction wastewater entering a storm water system
Applications: foul sewers Large inflow (creek)
DTS projects • Netherlands: • 15+ projects for municipalities (Eindhoven, Den Haag, Breda, Almere, etc.) • on-going research projects • Germany: • 2 projects for Water Utilities (Wuppertal, Emmerich) • 1 research project (initiative) • Denmark: • 1 project / research for municipality (Aarhus) • UK: • 1 pilot project for Water Utility (Anglian Water)
Typical reasons for using DTS • Illicit connection or inflows to storm/foul sewers systems • capacity improvement -> sewer: reduce CSOs -> WwTP: prevent expansion • flooding of sewers or pumping stations • reduction in energy consumption, pump wear, dosing chemicals (sewer, WwTP) • reduction in pollutant load via WwTP effluent
Particular UK issues • Transfer of private sewers regulation 2011 • Achievement of Environmental discharge consents • Operational efficiency • Looking towards AMP 6
Trial Site – Little Wakering (Southend) • Suffers from frequent flooding • Local pumping station exceeding capacity • Previous attempt to identify inflows inconclusive
Trial Site – Little Wakering • Deployment of DTS in partnership with Kwakernaak (Dutch) and Barhale contractors • 2 monitoring cables deployed (650m & 950m) • Sewer monitored for 4 weeks • Initial results have identified a number of storm water inflows