Water Quality and Parasites Biodiversity in Treated Wastewater

THE PRESENT study aims to evaluate the performance of Helwan wastewater treatment plant, Cairo, Egypt with parasites biodiversity. The study included water quality after treatment and the occurrence of parasites. The treated wastewater (tww) samples were monthly obtained as well as tap wate was monthly examined for water quality parameters. Diagnosis of parasite eggs and larvae were also achieved. The results showed that, the physico-chemical parameters value were markedly higher in tww compared to tap water Entamoeba histolytica cysts and Ascaris eggs were detected during all the time of examination. Coccidia oocysts and nematode larvae were recorded during June to August. Fasciola encysted metacercariae were also detected and for the first time during September to March. At the same time tap water samples were free from such parasites