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SimTejo Implements Real-time Integrated System to Accurately Predict Sewer Overflows in Lisbon’s Water Network

SimTejo Implements Real-time Integrated System to Accurately Predict Sewer Overflows in Lisbon’s Water Network
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SimTejo Implements Real-time Integrated System to Accurately Predict Sewer Overflows in Lisbon’s Water Network - 1

CASE STUDY Project Summary Organization: SimTejo Solution: Water and Wastewater Location: Lisbon, Portugal Project Objective: • Address overflow and flooding issues related to the wastewater system and tide • Integrate the large amount of information generated by the sewer, meteorology, and estuary models into an integrated system • Enable proactive operational management while simplifying the presentation of results enough for non-specialists Products used: SewerGEMS WaterObjects.NET Fast Facts • Regular flooding occurred due to uncontrolled stormwater, tide impact, and huge quantities of grit and coarse solids entering the sewerage systems • SimTejo directed Hidromod to develop AQUASAFE for integrated management of SimTejo’s drainage and wastewater treatment • AQUASAFE integrates data and software, including SewerGEMS, to generate accurate forecasts for the management and operations teams at SimTejo ROI • The availability of simplified data and reports accounts for €120,000 savings per year in specialized engineers and consulting • The automated integration of models and data saves €200,000 annually • The functional failure of pumping stations was reduced by 61 percent, saving €100,000 per year in maintenance and €30,000 in penalties annually • Improved efficiency for 90 pumping stations is expected to yield a 2 percent reduction in energy consumption, saving approximately €160,000 SimTejo Implements Real-time Integrated System to Accurately Predict Sewer Overflows in Lisbon’s Water Network Bentley’s WaterObjects.NET Technology Enables AQUASAFE Solution to Automate and Connect SewerGEMS to Real-time Data and Weather Forecast Frequent Flooding Drives Need for Forecasting From Reactive to Proactive Operational Management Lisbon Portugal’s sewerage network, which is managed by Saneamento Integrado dos Municípios do Tejo e Trancão (SimTejo), comprises separate sanitary sewers and combined wastewater systems, as well as partially separate systems. As is typical in the Mediterranean region, Lisbon experiences short, intense periods of heavy rainfall that often lead to flash floods, which when combined with high tides often cause the network to fail. Although SimTejo had access to large amounts of infrastructure and operational data from their water network, they needed a way to consolidate and integrate the huge amount of information into useful, actionable data. To provide real-time data for modeling emergency and planning scenarios, and real-time operations, SimTejo chose Bentley developer partner Hidromod to help create a tool that enabled management of drainage and wastewater treatment. SimTejo realized it needed to be able to consolidate a huge amount of information, including SCADA data, sampling data, data from quality probes, as well as other sources, such as hydraulic model results from SewerGEMS. SimTejo was already using modeling tools such as SewerGEMS for planning activities, but wanted a way to use these tools to enable real-time forecasting potential overflows, uncontrolled discharges, and flows into the wastewater treatment plant. In addition, to increase efficiency and improve planning, SimTejo needed a system that could not only integrate all available information, but also provide non-specialist staff with clear, simple reporting that would be customized according to the users’ needs and skills. SimTejo worked with Hidromod, a member of Bentley’s developer network, creating AQUASAFE according to SimTejo’s needs and requirements, to integrate the management of drainage, wastewater treatment, and disposal information. Using AQUASAFE provides SimTejo with integrated models and real-time data, enabling proactive management, including forecasting and short-term planning, while simplifying the presentation of results for non-specialist and operations staff. The sewerage systems managed by SimTejo were all constructed using different materials and components such as inverted siphons and pumping stations. These components were installed at different time periods, and consequently parts of the system are in better condition than others. The network flooded regularly at sewers, pumping stations, and wastewater treatment plants, as uncontrolled stormwater and huge quantities of grit and coarse solids entered the sewerage AQUASAFE was first Wastewater flows calculated by SewerGEMS are systems. In addition, Lisbon’s automated by AQUASAFE. applied in the pilot system topographic and geographic of Beirolas, an area in characteristics cause the tide the north of Lisbon with a to affect the downtown river front, where permanent population of about 204,000, which includes a wastewater tide valves had to be installed to prevent flooding when treatment plant, eight pumping stations, heavy concentrated rainfall coincided with high tides. and 18 kilometers of sewer mains.

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SimTejo Implements Real-time Integrated System to Accurately Predict Sewer Overflows in Lisbon’s Water Network - 2

“Further savings were achieved from improved operations and maintenance, which reduced the number of man-hours required for maintenance processes...” – Pedro Povoa, SimTejo R&D Project Manager Find out about Bentley at: www.bentley.com Contact Bentley 1-800-BENTLEY (1-800-236-8539) Outside the US +1 610-458-5000 Global Office Listings www.bentley.com/contact Real-time Information Making Models Available to Operators AQUASAFE automated the execution of Bentley’s SewerGEMS and connected it to real-time data and weather forecasts. SewerGEMS – used for the analysis of the sewer system,...

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