globalchange  > 气候减缓与适应
DOI: 10.1016/j.watres.2017.10.039
Scopus记录号: 2-s2.0-85034840626
论文题名:
Impacts from urban water systems on receiving waters – How to account for severe wet-weather events in LCA?
作者: Risch E.; Gasperi J.; Gromaire M.-C.; Chebbo G.; Azimi S.; Rocher V.; Roux P.; Rosenbaum R.K.; Sinfort C.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 128
起始页码: 412
结束页码: 423
语种: 英语
英文关键词: Combined sewer overflows ; Life Cycle Assessment ; Stormwater ; Temporal variability ; Urban wastewater systems ; Wet-weather emissions
Scopus关键词: Effluents ; Eutrophication ; Life cycle ; Public health ; Rain ; Sanitation ; Sewage ; Sewers ; Storms ; Water ; Weather information services ; Combined sewer overflows ; Life Cycle Assessment (LCA) ; Stormwaters ; Temporal variability ; Urban wastewater system ; Wet weather ; River pollution ; fresh water ; river water ; water ; rain ; environmental impact assessment ; extreme event ; life cycle analysis ; performance assessment ; pollution control ; sanitation ; sewer network ; temporal variation ; urban area ; urban drainage ; wastewater treatment ; wet season ; Article ; ecotoxicity ; effluent ; eutrophication ; life cycle assessment ; pollutant ; priority journal ; sanitation ; urban area ; waste water ; water supply ; weather ; analysis ; city ; France ; sanitation ; sewage ; waste water ; water pollutant ; weather ; France ; Ile de France ; Paris ; Ville de Paris ; Cities ; Drainage, Sanitary ; Eutrophication ; Fresh Water ; Paris ; Rain ; Sewage ; Waste Water ; Water Pollutants ; Weather
英文摘要: Sewage systems are a vital part of the urban infrastructure in most cities. They provide drainage, which protects public health, prevents the flooding of property and protects the water environment around urban areas. On some occasions sewers will overflow into the water environment during heavy rain potentially causing unacceptable impacts from releases of untreated sewage into the environment. In typical Life Cycle Assessment (LCA) studies of urban wastewater systems (UWS), average dry-weather conditions are modelled while wet-weather flows from UWS, presenting a high temporal variability, are not currently accounted for. In this context, the loads from several storm events could be important contributors to the impact categories freshwater eutrophication and ecotoxicity. In this study we investigated the contributions of these wet-weather-induced discharges relative to average dry-weather conditions in the life cycle inventory for UWS. In collaboration with the Paris public sanitation service (SIAAP) and Observatory of Urban Pollutants (OPUR) program researchers, this work aimed at identifying and comparing contributing flows from the UWS in the Paris area by a selection of routine wastewater parameters and priority pollutants. This collected data is organized according to archetypal weather days during a reference year. Then, for each archetypal weather day and its associated flows to the receiving river waters (Seine), the parameters of pollutant loads (statistical distribution of concentrations and volumes) were determined. The resulting inventory flows (i.e. the potential loads from the UWS) were used as LCA input data to assess the associated impacts. This allowed investigating the relative importance of episodic wet-weather versus “continuous” dry-weather loads with a probabilistic approach to account for pollutant variability within the urban flows. The analysis at the scale of one year showed that storm events are significant contributors to the impacts of freshwater eutrophication and ecotoxicity compared to those arising from treated effluents. At the rain event scale the wet-weather contributions to these impacts are even more significant, accounting for example for up to 62% of the total impact on freshwater ecotoxicity. This also allowed investigating and discussing the ecotoxicity contribution of each class of pollutants among the broad range of inventoried substances. Finally, with such significant contributions of pollutant loads and associated impacts from wet-weather events, further research is required to better include temporally-differentiated emissions when evaluating eutrophication and ecotoxicity. This will provide a better understanding of how the performance of an UWS system affects the receiving environment for given local weather conditions. © 2017 Elsevier Ltd
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被引频次[WOS]:32   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113141
Appears in Collections:气候减缓与适应

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作者单位: ITAP, Irstea, Montpellier SupAgro, Univ Montpellier, Montpellier, France; Université Paris-Est, LEESU, UMR MA 102 – AgroParisTech, Créteil, 94010, France; Université Paris-Est, LEESU, UMR MA 102 – AgroParisTech, Marne-la-Vallée, 77455, France; SIAAP, Direction du Développement et de La Prospective, Colombes, 92700, France

Recommended Citation:
Risch E.,Gasperi J.,Gromaire M.-C.,et al. Impacts from urban water systems on receiving waters – How to account for severe wet-weather events in LCA?[J]. Water Research,2018-01-01,128
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