Parasitological analysis in effluents from wastewater treatment plants
DOI:
https://doi.org/10.5216/rpt.v41i3.20752Keywords:
Helminths, Water reuse, Wastewater treatment, Public health.Abstract
The reuse of treated wastewater in agriculture has been established worldwide as a way to mitigate the decreased availability of good quality water in the world. However, this practice presents public health risks due to pathogens that maycan survive in sewage. Among these pathogens, the WHO highlights protozoa and helminths that parasites man. The present work aimed to detect the presence of intestinal parasites of public health importance present in treated sewage and to verify the potential risks in accordance to WHO guidelines. Effluent samples were collected from two treatment plants located in the city of Piracicaba – SP. The average helminth eggs for the study
period in the treatment plants CECAP and Piracicamirim was 3.78 and 0.89 eggs/L, respectively. Therefore, effluents from the CECAP meet the conditions of reuse contemplated in category C and the Piracicamirim station comply with the conditions of reuse contemplated in categories A and B, in which, according to the WHO guidelines values ? 1 egg/L are required.
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