The wetland unit was planted with three kinds of plants namely; Canna, Phragmitesaustralisand Cyprus papyrus. The wetland unit was fed with primary treated municipal wastewater at influent flow rate of 20 m3/day and surface loading rate ranged between 26.2 kg BOD ha−1 day−1 and 76.5 kg BOD ha−1 day−1 and a detention time of 7.7 days