Urban centres - IRIDRA's solutions
From small settlments (hundreds of inhabitants) up to small-middle towns (up to 20,000 inhabitants), IRIDRA proposes the following technical solutions
Classical constructed wetlands
- Constructed wetlands with horizontal subsurface flow (HF)
- Constructed wetlands with horizontal subsurface flow (HF)
- Constructed wetlands with free water surface (FWS)
- Hybrid constructed wetlands (HF + VF, HF + FWS, HF + VF + HF, HF + VF + HF + FWS, VF + HF)
Intensified constructed wetlands (Constructed wetlands 2.0)
Additional integrated solutions
Technological compact solutions
- Activated sludge
- Sequencing Batch Reactor - SBR
- Membrane Biological Reactor - MBR
IRIDRA's experience
Among the most representative examples of IRIDRA's experience in this field are following reported.
Municipality of Castelluccio di Norcia (PG - Italy) Treated person equivalent
1000 PE
Chosen Nature-based solution
FRB + VF + FWS
Peculiarity
Sited in an area of high naturalistic value (Natural Park of Monti Sibillini)
Year of realization
2012
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Orhei Municipality (Moldova) Treated person equivalent
20,000 PE
Chosen Nature-based solution
FRB + VF
Peculiarity
Biggest nature-based solution for primary and secondary treatment in Europe and among the biggest worldwide. Project financed by the World Bank
Year of realization
2013
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Antissa, Lesvos island (Greece)
Treated wastewater load
10 m3/d off season - 100 m3/d touristic season
Chosen Nature-based solution
UASB + saturated VF + unsaturated VF
Peculiarity
HYDRO 1 pilot site of the HYDROUSA project, aimed to reuse wastewater in the context of circular economy, recovering energy, sludge (UASB), and treated wastewater rich in nutrients for fertigation of an agroforestry site (HYDRO 2)
Year of realization
2021
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Sarra village, Nablus (Palestine) Treated person equivalent
4300 PE
Chosen Nature-based solution
VF + HF
Peculiarity
Sanitation improvement and treated wastewater reuse for irrigation of olive trees. Project financed by the European Union
Year of realization
2012-2013
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Municipality of Dicomano (FI - Italy) Treated person equivalent
3500 PE
Chosen Nature-based solution
HF + VF + HF + FWS
Year of realization
2003
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Municipal dog shelter of Lavello (PZ - Italy) Users
300 dogs
Chosen Nature-based solution
HF + VF + VF
Year of realization
2006
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Celle sul Rigo district, Municipality of San Casciano dei Bagni (SI - Italy) Treated person equivalent
620 PE
Chosen Nature-based solution
HF
Year of realization
2004
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Lago Santo, Cembra (TN - Italy)
Treated person equivalent
450 PE
Chosen Nature-based solution
HF
Year of realization
2008
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Chorfech village (Tunisi) Treated person equivalent
450 PE
Chosen Nature-based solution
HF + VF + HF
Peculiarity
Nature-based solution realized under the European funded project Zer0-M
Year of realization
2008
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Municipality of Spannocchia (SI - Italy) Treated person equivalent
60 PE
Chosen Nature-based solution
HF + FWS
Year of realization
1999
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Municipality of Dozza (BO - Italy) Treated person equivalent
120 PE
Chosen Nature-based solution
HF
Year of realization
2002
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Prison of Isola di Gorgona (LI - Italy) Treated person equivalent
100-400 PE
Chosen Nature-based solution
HF
Year of realization
1996
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Hajja village (Palestine) Treated person equivalent
1000 PE
Chosen Nature-based solution
VF + HF
Year of realization
2013
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Marciola district, Scandicci (FI - Italy) Treated person equivalent
125 PE
Chosen Nature-based solution
HF
Year of realization
2001
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Municipality of Montecarotto (AN - Italy)
Treated person equivalent
180 PE
Chosen Nature-based solution
HF
Year of realization
2001
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Mosciano district, Municipality of Scandicci (FI - Italy) Treated person equivalent
60 PE
Chosen Nature-based solution
HF
Year of realization
2001
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Olle district, Municipality of Finale Ligure (SV)
Treated person equivalent
200 PE
Chosen Nature-based solution
HF + VF + HF + FWS
Year of realization
2000
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Palazzone district, Municipality of San Casciano dei Bagni (SI - Italy) Treated person equivalent
600 PE
Chosen Nature-based solution
HF
Year of realization
2005
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Ponte a Rigo district, Municipality of San Casciano dei Bagni (SI - Italy) Treated person equivalent
120 PE
Chosen Nature-based solution
HF
Year of realization
2002
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Villa Marchese district, Municipality of Guado Cattaneo (PG - Italy) Treated person equivalent
150 PE
Chosen Nature-based solution
HF
Year of realization
2003-2004
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Shirvan village, Hajigabul lake (Azerbaijan) Treated person equivalent
325 PE (referred to organic load)
Chosen Nature-based solution
FWS
Year of realization
2020
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