Micropollutants removal and storage efficiencies in urban stormwater constructed wetland

The Science of the Total Environment
M WalaszekA Wanko

Abstract

Stormwaters is identified as a major source of pollution in waterbodies. Particularly, heavy metals (HMs) and Polycyclic Aromatic Hydrocarbons (PAHs) in stormwater are highly toxic compounds for living organisms. To limit the impact of these micropollutants on hydrosystems quality, stormwater constructed wetlands (SCWs) have been built worldwide. This study aims to i) assess the efficiency of a SCW that combines a sedimentation pond followed by a vertical flow sand filter in urban area (Strasbourg 67, France) and ii) determine micropollutants storage in water and soils during dry periods. Stormwater quality was analysed during 13 sampling sessions and the SCW storage ability during dry period was highlighted. The rainfall events sampled are characterized by very high variability: dry periods lasted from 5 h to 10 d, rain durations varied from 15 min to 22 h and the return periods were between 2 and 4 wk. and 3-6 mo. The inflow stormwater included a high amount of Zn and a variety of PAHs. Cu, Zn and some PAHs concentrations are impacted by hydrological characteristics. During a rain event, the filter catches the majority of both dissolved and particulate micropollutants and the mobilization of particulate micropollution by inco...Continue Reading

References

Jul 9, 2004·Journal of Contaminant Hydrology·Magali DechesneJean-Pascal Bardin
Jul 28, 2004·Journal of Colloid and Interface Science·Heike B Bradl
Dec 19, 2006·Journal of Contaminant Hydrology·P GöbelW G Coldewey
Sep 3, 2011·Environmental Technology·Katerine Lamprea, Véronique Ruban
Mar 14, 2014·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Christel SébastianRégis Visiedo
Sep 13, 2014·Journal of Environmental Management·D Michael RevittMartin Fairley
Jun 5, 2015·Water Research·Kefeng ZhangDavid T McCarthy

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Citations

Jun 28, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Carolyn M RodakJason R Vogel
Sep 19, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Umesh GhimireVeera Gnaneswar Gude
May 26, 2021·The Science of the Total Environment·Congcong ZhaoQian Wang
Jun 29, 2021·Journal of Environmental Management·Paul BoisAdrien Wanko

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