Sustainable managment: Grey water reuse
For the treatment and reuse of grey water, IRIDRA proposes the following solutions
Classical constructed wetlands
- Horizontal subsurface flow systems (HF)
- Vertical subsurface flow systems (VF)
- Free water surface systems (FWS)
- Hybrid systems (HF + VF, HF + FWS, HF + VF + HF + FWS)
Green architectural nature-based solutions
- Roof wetlands
- Vertical gardens o Green Walls
- Green roofs
Combination with water saving devices in buildings
- Hand basins and shower water saving devices
- Water saving solutions for toilet flushing
- Low water footprint scelta appliances
IRIDRA's experience
Among the most representative examples of IRIDRA's experience in this field are following reported.
Residential area in Preganziol (TV - Italy) Treated person equivalent
280 PE
Chosen Nature-based solution
HF
Peculiarity
Separation, treatment, and reuse of greywater for toilet flushing
Year of realization
2009
|
|
Beduin village in Westbank (Palestine) Treated person equivalent
70-120 PE
Chosen Nature-based solution
VF
Peculiarity
Separation, treatment with a constructed wetland, and reuse of greywater from a Beduin village in Palestine. The treated greywater is reused for irrigation of olive trees and fodder. The nature-based solution was designed by IRIDRA, commissioned by the NGO OXFAM Italy, and funded by EU ECHO, FAO, and Sardinia Region
Year of realization
2011-2012
|
|
Margarita beach, Marina di Ragusa (RG - Italy) Maximum trated greywater quantity
0.5 l/s (Pilot plant)
Chosen Nature-based solution
Green wall
Peculiarity
Gardening reuse of treated greywater. Designed by IRIDRA for Svi.med, partner of the project CONSUME-LESS (Interreg MED)
Year of realization
2018
|
|
Restoration of a residential area in Alliste (LE - Italy) Treated person equivalent
100 PE
Chosen Nature-based solution
HF + VF
Peculiarity
Irrigation reuse of treated greywater.
Year of design
2010
|
"La Cava" camping, Arezzo (AR - Italy) Treated person equivalent
80 PE
Chosen Nature-based solution
HF
Peculiarity
Separation, treatment with a constructed wetland, and reuse of greywater for irrigation. Nature-based solution realiazed under the EU funded project SWAMP
Year of realization
2004
|
Hostel campus of the College of Engineering, Pune (India) Treated greywater quantity
40 m3/day
Chosen Nature-based solution
VF
Peculiarity
Separation, treatment with a constructed wetland, and reuse of greywater for toilet flushing. Nature-based solution realiazed under the EU funded project NaWaTech
Year of realization
2015
|
San Carlo settlement, San Vincenzo (LI - Italy) Treated wastewater quantit
30 m3/day
Chosen Nature-based solution
HF + VF
Peculiarity
Tertiary treatment for reuse purposes. Treated wastewater is reused to irrigate vegetation used for restoration of a dismissed querry.
Year of design
2010
|
Resort in Grumenti community, Serengeti (Tanzania) Treated greywater quantity
4 m3/day
Chosen Nature-based solution
roof wetland
Peculiarity
Irrigation reuse of treated greywater.
Year of realization
2015
|
Maharashtra Jeevan Pradhikaran head office, Pune (India) Treated person equivalent
0.125 - 0.25 m3/day (Pilot plant)
Chosen Nature-based solution
Green wall
Peculiarity
Investigation of possible reuse of greywater treated by a green wall. Nature-based solution realiazed under the EU funded project NaWaTech
Year of realization
2014
|
Wedding facility "Luna Nuova", Sternatia (LE - Italy) Treated person equivalent
615 PE
Chosen Nature-based solution
HF + VF + HF + FWS
Peculiariy
Irrigation reuse of treated greywater.
Year of realization
2004
|
Residential buildings in Località ex oratorio del Monte, Vicchio (FI - Italy) Treated person equivalent
30 PE
Chosen Nature-based solution
HF
Peculiarity
Separation, treatment with a constructed wetland, and reuse of greywater for irrigation and toilet flushing
Year of design
2008
|