Evaluation of the efficiency of wastewater treatment plant in removal of parasitic eggs in Kashan University of Medical Sciences

摘要

The results showed that the monthly average of Ascaris lumbricoides eggs, Enterobius vermicularis, free-living nematodes and Dicrocoelium dendriticum in the effluent of wastewater treatment plant, were 9.86, 2.64, 2.89 and 8.47 eggs per liter, respectively. The average number of parasitic eggs in the effluent of wastewater treatment plant was less than one. As a result, the efficiency of the treatment plant in their removal was 95.61, 100, 97.25, and 95.70%, respectively and can easily meet the standards for reuse in agricultural irrigation (Angleburg Index: Nematode Egg: >1 in liters).