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Monte Carlo simulation for localisation and volume estimation of wastewater contamination in stormwater sewers
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.ORCID iD: 0000-0002-5979-5608
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.
Number of Authors: 4
2016 (English)In: NOVATECH 2016, 2016Conference paper, (Refereed)
Abstract [en]

In separate sewerage systems the sewage may find its way into the stormwater sewer network, impairing the quality and increasing the risks to public health and aquatic organisms. Detecting the presence and localising the point of ingress of wastewater in stormwater systems can be a challenging task because of the variable sources, regularity, consistency and flow rates of incoming wastewater. This paper suggests a method for the estimation of the volumes of wastewater inflow to a stormwater system and localising its point of ingress by using Monte Carlo simulation. The developed method showed varying efficiency depending on the selected combination of pollutant parameters. More experiments on the rates of concentration changes of parameters over the travel distance are suggested to increase the accuracy of the method.

Abstract [fr]

Dans un système d’égout séparatif, il arrive qu’une partie des eaux usées trouve son chemin jusqu’au réseau de drainage des eaux de pluies. Il en résulte une dégradation de la qualité des eaux de pluie déchargées, ce qui augmente le risque sanitaire pour la population et la flore aquatique environnante. Détecter et localiser les points d’entrée des eaux usées dans le système de gestion des eaux pluviales peut être particulièrement difficile. En effet, l’entrée des eaux usées peut se faire à différents débits, de manière plus ou moins régulière, et depuis différentes sources. Cet article propose une méthode pour la localisation de ces points d’entrée ainsi que l’estimation des volumes associés, ceci en utilisant la simulation Monte Carlo. La méthode développée montre différents niveaux d’efficacité suivant la combinaison de paramètres de pollution choisie. Pour améliorer la précision de cette approche, de futurs travaux sont suggérés concernant la diminution des concentrations de chaque paramètre le long de l’écoulement.

Place, publisher, year, edition, pages
2016.
National Category
Water Engineering
Research subject
Urban Water Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-61546OAI: oai:DiVA.org:ltu-61546DiVA: diva2:1066811
Conference
9th International Conference NOVATECH Lyon, Planning and technologies for sustainable urban water management, June 28 - July 1, 2016
Available from: 2017-01-19 Created: 2017-01-19 Last updated: 2017-02-21Bibliographically approved

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