Occurrence and genetic diversity of Cryptosporidium and Giardia in urban wastewater treatment plants in north-eastern Spain
| Autor: | Caridad Sánchez-Acedo, Joaquín Quílez, Emilio del Cacho, Ana Ramo |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Secondary treatment Veterinary medicine Environmental Engineering 030106 microbiology Cryptosporidium Sewage Wastewater 010501 environmental sciences 01 natural sciences Microbiology 03 medical and health sciences parasitic diseases Animals Environmental Chemistry Waste Management and Disposal Effluent 0105 earth and related environmental sciences biology business.industry Giardia Oocysts Genetic Variation biology.organism_classification Pollution Spain Sewage treatment business Sludge |
| Zdroj: | Zaguán. Repositorio Digital de la Universidad de Zaragoza instname |
| ISSN: | 0048-9697 |
| DOI: | 10.1016/j.scitotenv.2017.04.097 |
| Popis: | This study was designed to investigate the presence and removal efficiency of Cryptosporidium and Giardia in wastewater treatment plants at the 20 most populated towns in Aragón (north-eastern Spain). Samples of influent and effluent wastewater and dewatered sewage sludge were collected seasonally from 23 plants and processed according to USEPA Method 1623. All samples from raw and treated wastewater tested positive for Giardia, at an average concentration of 3247 ± 2039 cysts/l and 50 ± 28 cysts/l, respectively. Cryptosporidium was identified in most samples from both raw (85/92) and treated (78/92) wastewaters in a concentration significantly lower than Giardia, at both influent (96 ± 105 oocysts/l) and effluent samples (31 ± 70 oocysts/l) (P |
| Databáze: | OpenAIRE |
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