Exploring global Cryptosporidium emissions to surface water

Hofstra, Nynke; Bouwman, A. F.; Beusen, Arthur; Medema, Gertjan

doi:10.1016/j.scitotenv.2012.10.013

Cited by 67 publications

(87 citation statements)

References 87 publications

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“…Para cada sistema é necessário realizar uma avaliação cautelosa da qualidade do efluente final para o conhecimento das taxas de remoção e a necessidade de inclusão de um tratamento terciário adicional para evitar a contaminação ambiental devido a presença de protozoários patogênicos mesmo em efluentes tratados como já demostrado em diversos estudos (Nasser et al 2012;Hofstra et al, 2013;Taran-Benshoshan et al, 2015;Nasser, 2016).…”

Section: Parâmetros Físicos Químicos E Microbiológicosunclassified

Remoção de cistos de Giardia spp. e oocistos de Cryptosporidium spp. na Estação de Tratamento de Esgoto Garcia, no município de Blumenau, SC, Brasil

Miglioli¹,

Zuanazzi²,

Silva³

et al. 2017

Rev. ambiente água

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Giardia spp. and Cryptosporidium spp. are responsible for a number of outbreaks of gastroenteritis, particularly associated with the consumption of contaminated water. The cysts and oocysts of these protozoa are resistant to environmental variations, as well as to most of the physical, chemical and microbiological processes used in water treatment and sewage plants. This study therefore aimed to detect and evaluate the removal of Giardia spp. and Cryptosporidium spp. in a combined system anaerobic / aerobic Waste Water Treatment Plant (WWTP) located in the city of Blumenau, SC, Brazil. For the study of cysts and oocysts, samples of effluents and sludge from the WWTP were concentrated by filtration using a membrane of cellulose esters and by centrifugation, followed by direct immuno-fluorescence assay (RID) using the Merifluor diagnostic kit. The analysis followed the standards published in APHA (2012) to obtain the physical, chemical and microbiological parameters. High concentrations of Giardia spp. (Max. 900,000 L -1 cysts) were detected in 83.3% of the analyzed points. Oocysts Cryptosporium spp. were detected at high concentrations (max. 300,000 oocysts L -1 ) in 66.6% of the analyzed points. Neither cysts nor oocysts were detected in treated effluent samples. Thus, the combined system of the Garcia WWTP showed a 99.9% efficiency rate for the removal of resistant forms of pathogens, contributing to the reduction of environmental contamination by these pathogens present in the domestic sewage of Blumenau, SC.

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Section: Parâmetros Físicos Químicos E Microbiológicosunclassified

Remoção de cistos de Giardia spp. e oocistos de Cryptosporidium spp. na Estação de Tratamento de Esgoto Garcia, no município de Blumenau, SC, Brasil

Miglioli¹,

Zuanazzi²,

Silva³

et al. 2017

Rev. ambiente água

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“…An analogous model could be developed for more diffuse emission sources, e.g. pesticides or veterinary pharmaceuticals, or for other contaminants such as pathogens (Hofstra et al, 2013). This study modeled single parent compounds.…”

Section: Possibilities For Further Improvement Of the Analysis Toolmentioning

confidence: 99%

Towards spatially smart abatement of human pharmaceuticals in surface waters: Defining impact of sewage treatment plants on susceptible functions

et al. 2015

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Section: Pesquisa De Cisto De Giardia Spp E Oocistos De Cryptosporidunclassified

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2017

Rev. ambiente água

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Exploring global Cryptosporidium emissions to surface water

Cited by 67 publications

References 87 publications

Remoção de cistos de Giardia spp. e oocistos de Cryptosporidium spp. na Estação de Tratamento de Esgoto Garcia, no município de Blumenau, SC, Brasil

Remoção de cistos de Giardia spp. e oocistos de Cryptosporidium spp. na Estação de Tratamento de Esgoto Garcia, no município de Blumenau, SC, Brasil

Towards spatially smart abatement of human pharmaceuticals in surface waters: Defining impact of sewage treatment plants on susceptible functions

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