Constructed wetlands (CW) are treatment systems that use natural processes involving wetland vegetation, soils and their associated microbial assemblages to improve water quality i.e. treating municipal or industrial wastewater, grey-water or storm-water runoff.

A free-water surface constructed wetland (FWS_CW) is a series of flooded planted channels or basins.

How? → ● As water slowly flows through the wetland, particles settle, pathogens are destroyed, and organisms and plants utilize the nutrients. Pre-treating of wastewater in e.g. a septic tank is necessary to avoid excess accumulation of solids and garbage. ●Plants grown on the wetland may be used for composting or as biomass for energy production whereas the effluent can be used for aquaculture and irrigation

Where? → FWS_CW is commonly used as an advanced treatment after secondary or tertiary treatment processes. Appropriate for small sections of urban areas (e.g. decentralised treatment for a community) and for peri-urban and rural communities Risk of mosquito breeding if not properly designed.

Ploutochori belongs to the Municipality of Andrichaina-Krestena, Helia Prefecture, Region of Western Greece. According to the 2011 census by ELSTAT the population is 249 people. The CW (A) is located north of the village (~800m distance) outside residential area and away from protected areas

Choletria is a village in the Paphos District of Cyprus, located 22 km east of Paphos. The village is located at an attitude of 150 meter receiving an average rainfall of about 480 cm.
The CW (B) is located south east of the village (~900m distance) outside residential area and away from protected areas