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Universidade Federal do Rio Grande do Sul (2010)

Ocorrência de desreguladores endócrinos em cultura de milho irrigada com efluentes urbanos tratados

Barros de Castro Carmen Maria

Titre : Ocorrência de desreguladores endócrinos em cultura de milho irrigada com efluentes urbanos tratados

Auteur : Barros de Castro Carmen Maria

Université de soutenance : Universidade Federal do Rio Grande do Sul

Grade : Doutorado 2010

Résumé
Due to the scarcity of fresh water resources, effluents from wastewater treatment plants have increasingly been reclaimed and reused around the world. In some arid and semiarid regions, in particular, reclaimed water has been recognized as a valuable resource for non-potable use such as irrigating crops. However, depending on the nature of application, there is concern about potential risks associated with pathogens and organic contaminants to the environment and human health. A wide range of organic contaminants may be present in wastewater and the environment receiving it. These include natural and synthetic estrogens have the potential to disrupt the normal function (s) of endocrine systems in organisms and thus causing health effects on wildlife and humans. In the present work, developed at “Estação Experimental de Tratamento de Águas Residuárias Urbanas do IPH/UFRGS”, located on the ETE São João – Navegantes /DMAE / Porto Alegre /RS, was investigated the occurrence of natural and synthetic hormones in corn’s grain (Zea mays) cultivated by furrow irrigation of treated domestic effluents. The analytic method used for the hormones quantification was the High Performance Liquid Chromatography (HPLC). The results confirm the presence of natural and synthetic hormones on the untreated and treated effluents, although with a very low concentration and not indicated accumulation of this one to the corn’s grain.

Mots clés : Hormones ; Hormônios ; Esgotos domésticos ; Endocrine disrupting compounds ; Sewage ; Zea mays ; Reclaimed water ; Reúso da água ; Irrigacao : Sulcos ; Furrow irrigation ; Efluentes urbanos ; Zea mays

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Page publiée le 16 juin 2013, mise à jour le 4 juillet 2017