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The influence of Lemna sp. and Spirogyra sp. on the removal of pharmaceuticals and endocrine disruptors in treated wastewaters

The presence of pharmaceuticals and endocrine-disrupting chemicals (EDCs) in wastewater treatment plant effluents is an issue of great concern due to the negative effects that these compounds may have on human health and ecosystems. The present study aims to assess the capacity of two aquatic plants (Lemna sp. and Spirogyra sp.), commonly found in polishing ponds, for removing six pharmaceutical compounds (diclofenac, acetaminophen, ibuprofen, carbamazepine, clofibric acid, and propranolol), two EDCs (17α-ethinylestradiol and bisphenol A), and one stimulant (caffeine) under laboratory-scale conditions. Planted and unplanted reactors fed with secondary-treated wastewater or ultrapure water in both covered and uncovered conditions were studied. The highest removal efficiencies, which ranged from 31 to 100 %, were achieved in uncovered planted systems containing secondary-treated wastewater after 20 days of incubation. The results demonstrated that non-charged compounds with a log Kow between 2 and 4 were affected by the presence of vegetation, probably due to their plant uptake, whereas negatively charged compounds were not. This highlights that the presence of plants in polishing ponds plays an important role in the removal of pharmaceuticals and EDCs

The financial support of the Ministerio de Ciencia e Inovacion through project CTM2011-28765-C02-02 is gratefully acknowledged. Aida Garcia-Rodriguez thanks the University of Girona for research Grant BR2011/27

© International Journal of Environmental Science and Technology, 2015, vol. 12, núm. 7, p. 2327-2338

Springer Verlag

Author: Garcia-Rodríguez, Aida
Matamoros, Víctor
Fontàs Rigau, Clàudia
Salvadó Martín, Victòria
Date: 2015 June 7
Abstract: The presence of pharmaceuticals and endocrine-disrupting chemicals (EDCs) in wastewater treatment plant effluents is an issue of great concern due to the negative effects that these compounds may have on human health and ecosystems. The present study aims to assess the capacity of two aquatic plants (Lemna sp. and Spirogyra sp.), commonly found in polishing ponds, for removing six pharmaceutical compounds (diclofenac, acetaminophen, ibuprofen, carbamazepine, clofibric acid, and propranolol), two EDCs (17α-ethinylestradiol and bisphenol A), and one stimulant (caffeine) under laboratory-scale conditions. Planted and unplanted reactors fed with secondary-treated wastewater or ultrapure water in both covered and uncovered conditions were studied. The highest removal efficiencies, which ranged from 31 to 100 %, were achieved in uncovered planted systems containing secondary-treated wastewater after 20 days of incubation. The results demonstrated that non-charged compounds with a log Kow between 2 and 4 were affected by the presence of vegetation, probably due to their plant uptake, whereas negatively charged compounds were not. This highlights that the presence of plants in polishing ponds plays an important role in the removal of pharmaceuticals and EDCs
The financial support of the Ministerio de Ciencia e Inovacion through project CTM2011-28765-C02-02 is gratefully acknowledged. Aida Garcia-Rodriguez thanks the University of Girona for research Grant BR2011/27
Format: application/pdf
ISSN: 1735-1472 (versió paper)
1735-2630 (versió electrònica)
Document access: http://hdl.handle.net/10256/11532
Language: eng
Publisher: Springer Verlag
Collection: MICINN/PN 2012-2012/CTM2011-28765-C02-02
Reproducció digital del document publicat a: http://dx.doi.org/10.1007/s13762-014-0632-x
Articles publicats (D-Q)
Is part of: © International Journal of Environmental Science and Technology, 2015, vol. 12, núm. 7, p. 2327-2338
Rights: Tots els drets reservats
Subject: Aigües residuals -- Eliminació
Sewage disposal
Aigües residuals -- Plantes de tractament
Sewage disposal plants
Title: The influence of Lemna sp. and Spirogyra sp. on the removal of pharmaceuticals and endocrine disruptors in treated wastewaters
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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