First flush stormwater treatment - IRIDRA's solutions
For the treatment of first flush runoff, IRIDRA proposes the following technical solutions
Classical constructed wetlands
- Constructed wetlands with horizontal subsurface flow (HF)
- Constructed wetlands with vertical subsurface flow (VF)
- Constructed wetlands with free water surface (FWS)
- Hybrid constructed wetlands (HF + FWS, VF + FWS)
Intensified constructed wetlands (Constructed wetlands 2.0)
Sustainable Drainage Systems(SuDS)
- Ponds
- Rain garden
- Bioretention systems
IRIDRA's experience
Among the most representative examples of IRIDRA's experience in this field are following reported.
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Villese-Gorizie highway, Veneto Region (Italy)
Chosen Nature-based solution
Off-line treatment: First flush tank + HF + FWS + Detention and infiltration basin
On-line: HF/VF
Peculiarity
Multipurpose nature-based solution: environmental impact mitigation, landscaping improvement of highway. Designed by IRIDRA for Autovie Venete
Year of realization
2015
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Environmental education centre of Rispescia, Grosseto (GR - Italy)
Chosen Nature-based solution
HF + FWS
Peculiarity
Nature-based solution sited in an area of high naturalistic value (Maremma regional park)
Year of realization
2001
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Centro di ricerche Kerakoll research centre, Sassuolo (MO - Italy)
Chosen Nature-based solution
Rain garden
Peculiarity
Nature-based solution sited in proximity of a building of high landscaping value
Year of realization
2012
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Decentralised agricultural runoff treatment in the Sapanca lake watershed, KAMAG project (Turkey)
Chosen Nature-based solution
Sediment forbay + constructed wetland
Peculiarity
NBS realized under the umbrella of the KAMAG project
Year of realization
2011
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Residential area, Preganziol (TV - Italy)
Chosen Nature-based solution
Rain Garder
Year of realization
2009
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