In the MENAWARA project, an innovative approach has been used for the Constructed Wetlands (CW) to: 

- Increase outlet performances: by designing hybrid configurations (subsurface vertical with horizontal and vertical with surface);

- Ensure effective areas of the sub-surface vertical CW: by laying the feed pipes above the substrate to avoid burying them.

In synergie with another European project (LIFE INTEXT), two innovative wetlands have been used:

• Intermittent and aerated vertical-horizontal CW. The CW is innovative not only for its configuration and intensification of the process, but also because it works as a primary treatment, receiving pre-treated water;
• Floating macrophytes, with the possibility of operating with aeration and recirculation, with several aerated and non-aerated zones.