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The presence of radionuclides in wastewater treatment plants in spain and their effect on human health
Montaña Gurrera, Montserrat; Camacho García, Antonia; Devesa, Ricard; Valles Murciano, M. Isabel; Cespedes, R.; Serrano Carreño, M. Isabel; Blázquez Pérez, Sonia M.; Barjola Molina, Vanessa
Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques; Universitat Politècnica de Catalunya. GREENER - Grup de recerca d´estudis energètics i de les radiacions
Wastewater treatment facilities can produce sludge containing measurable amounts of radioactivity. The radionuclides that are concentrated may originate from radionuclides present in the original source of water or from water treatment. This treated water ends up most frequently in the aquatic environment, but it may also receive further application, for instance, as irrigation water in agriculture. Therefore, evaluation of its quality is essential to both protect the health of the environment and also of humans. The aim of the present work is to study the radioactivity in liquids and sludge generated at 11 wastewater treatment plants in Spain, working under a variety of conditions, as there is an increase in usage of wastewater treatment plants in Spain as a result of frequent drought periods. Gross alpha and gross beta activities were determined in influent and effluent liquids and sludge by ZnS solid scintillation detectors and low-background gas-flow counters. Natural and artificial gamma radionuclides in the sludge were analyzed with a germanium semi-conductor detector. The results indicate that the radiological characteristics of the effluents and sludge do not present a significant radiological risk and make them suitable for future applications.
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament de l'aigua
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Desenvolupament humà::Aigua i sanejament
Radioactivity
Water treatment plants
Gross alpha activity
Gross beta activity
Natural and artificial gamma radionuclides
Sludge
Wastewater
Aigües residuals -- Plantes de tractament
Radioactivitat
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/publishedVersion
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