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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SES 1-4-3: Asset Management Location: HSB2 Session Chair: Franz Tscheikner-Gratl Session Chair: Emma Madeleine Girot | |
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4:30pm - 4:45pm
Evaluating and Modelling Hydraulic Effects Resulting from Wipe Blockages in Sewer Systems 1: Toronto Metropolitan University, Canada; 2: WSP Sewer networks face significant challenges from blockages caused by fats, oils, grease, tree roots, and non-biodegradable items like wet wipes. Increased flushing of wipes exacerbates blockages, while the hydraulic impacts of wipe accumulation and methods for modelling them in sewer remain underexplored. This study addresses this gap by simulating wipe accumulation in sewer defects under varying flow rates and blockage sizes. Results demonstrated that upstream water levels consistently increased as blockages grew. These hydraulic effects were modelled in the Storm Water Management Model (SWMM) using four methods: adjusting Manning’s roughness coefficient, filling the pipe, modifying the headloss coefficient, and incorporating an orifice. The simulation results quantified the dependency of model parameters on both flow rate and blockage size. This research provides practical guidance for modelling wipe-caused blockages, accounting for reduced sewer capacity and performance. The findings can be incorporated into sewer asset management practices to enhance system efficiency. | |