Does water flow type influence performances of reed based constructed wetland for wastewater treatment?

The application of Phragmites australis based constructed wetlands (CW) have been widely used in various climates and also used for secondary treatment of diverse wastewater and polluted water. This work compares the treatment performance of two Phragmites-based mesocosms: the first with surface horizontal flow (SF), and the other with subsurface horizontal flow (SSF), in the same conditions of feeding and climate. The results showed a significantly high mineral content of the effluent water exiting SSF-CW.

Nitrogen and phosphorus uptake and biomass production in four riparian plants grown in subsurface flow constructed wetlands for urban wastewater treatment.

Riparian woodlands play a multiple ecological and environmental role, including control of non-point source pollution and increasing of nutrients retention. Four riparian species (Arundo donax L., Salix purpurea L.

Performance of Lemna gibba bioreactor for nitrogen and phosphorus retention, and biomass production in Mediterranean climate.

Lemna gibba (Lemnaceae) had been experimented in Morocco to develop macrophyte-based wastewater treatment systems adapted to the local climatic and socio-economic circumstances. This species growing on pre-treated urban wastewater, in a lagoon (Lemna bioreactor) operating in fed-batch, generates a net productivity of 28.39 t dw.