Print Email Facebook Twitter Near real-time detection of blockages in the proximity of combined sewer overflows using evolutionary ANNs and statistical process control Title Near real-time detection of blockages in the proximity of combined sewer overflows using evolutionary ANNs and statistical process control Author Rosin, T. R. (University of Exeter) Kapelan, Z. (TU Delft Sanitary Engineering; University of Exeter) Keedwell, E. (University of Exeter) Romano, M. (United Utilities) Date 2022 Abstract Blockages are a major issue for wastewater utilities around the world, causing loss of service, environmental pollution, and significant cleanup costs. Increasing telemetry in combined sewer overflows (CSOs) provides the opportunity for near real-time data-driven modelling of wastewater networks. This paper presents a novel methodology, designed to detect blockages and other unusual events in the proximity of CSO chambers in near real-time. The methodology utilises an evolutionary artificial neural network (EANN) model for short-term CSO level predictions and statistical process control (SPC) techniques to analyse unusual level behaviour. The methodology was evaluated on historic blockage events from several CSOs in the UK and was demonstrated to detect blockage events quickly and reliably, with a low number of false alarms. Subject blockage detectioncombined sewer overflowevolutionary artificial neural networkradar rainfall nowcastsstatistical process control To reference this document use: http://resolver.tudelft.nl/uuid:b0549d75-2d52-4ed5-8944-1a815477626e DOI https://doi.org/10.2166/hydro.2022.036 ISSN 1464-7141 Source Journal of Hydroinformatics, 24 (2), 259-273 Part of collection Institutional Repository Document type journal article Rights © 2022 T. R. Rosin, Z. Kapelan, E. Keedwell, M. Romano Files PDF jh0240259.pdf 751.34 KB Close viewer /islandora/object/uuid:b0549d75-2d52-4ed5-8944-1a815477626e/datastream/OBJ/view