Conference Agenda
Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).
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Daily Overview |
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Poster session: Poster session with drinks and snacks Location: HSB3 | |
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Poster
Impact of high-resolution rainfall spatial and temporal dynamics on combined sewer overflows in Brussels, Belgium 1: Vrije Universiteit Brussel, Department of Electronics and Informatics, Brussels, Belgium; 2: Vrije Universiteit Brussel, Department of Water and Climate, Brussels, Belgium; 3: HYDRIA, Brussels, Belgium; 4: Royal Meteorological Institute of Belgium, Scientific Service Observations, Brussels, Belgium Brussels' complex sewer network, with around hundred regularly-spilling combined sewer overflows (CSOs), contributes significantly to its surface water courses pollution, threatening compliance with the European Water Framework and the new Urban Wastewater Treatment Directives. Identifying which specific rainfall events trigger different CSO occurrences is essential for implementing solutions like real-time control. However, many studies on CSOs rely on sparse or low-resolution rainfall data. This study investigates CSO occurrences for rainfall events in 2023 and 2024 using high-resolution rainfall data in the Brussels Capital Region, specifically radar-based precipitation with 1 km spatial and 5-minute temporal resolution. Nine overflow locations were selected, which discharge into two different surface water bodies at varying frequencies. We quantify overflow frequency and duration, and link these to rainfall event metrics. Future work will include more overflow locations, and will aim at identifying specific rainfall patterns that disproportionately contribute to CSO at the different locations. | |