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Appl. Sci. 2017, 7(8), 834; doi:10.3390/app7080834

Longitudinal Removal of Bisphenol-A and Nonylphenols from Pretreated Domestic Wastewater by Tropical Horizontal Sub-SurfaceConstructed Wetlands

1
Grupo de Saneamiento Ambiental, Instituto Cinara, Unversidad del Valle, Cali 100-00, Colombia
2
Doctorado en Ciencias Ambientales, Universidad del Cauca, Popayán 190001, Colombia
3
Escuela EIDENAR-Facultad de Ingeniería, Universidad del Valle, Cali 100-00, Colombia
4
UNESCO-IHE Institute for Water Education, 2611 AX Delft, The Netherlands
5
Department of Chemistry, University of Texas at El Paso, El Paso, TX 79968, USA
6
Department of Civil Engineering, University of Texas at El Paso, El Paso, TX 79968, USA
*
Author to whom correspondence should be addressed.
Received: 30 June 2017 / Revised: 20 July 2017 / Accepted: 20 July 2017 / Published: 15 August 2017
(This article belongs to the Special Issue Wastewater Treatment and Reuse Technologies)
View Full-Text   |   Download PDF [1656 KB, uploaded 15 August 2017]   |  

Abstract

Bisphenol A (BPA) and nonylphenols (NPs), with a high potential to cause endocrine disruption, have been identified at levels of nanograms per liter and even micrograms per liter in effluents from wastewater treatment plants. Constructed wetlands (CWs) are a cost-effective wastewater treatment alternative due to the low operational cost, reduced energy consumption, and lower sludge production, and have shown promising performance for treating these compounds. A CW pilot study was undertaken todetermine its potential to remove BPA and NP from municipal wastewater. Three CWs were used: the first CW was planted with Heliconia sp., a second CW was planted with Phragmites sp., and the third CW was an unplanted control. The removal efficiency of the Heliconia-CW was 73 ± 19% for BPA and 63 ± 20% for NP, which was more efficient than the Phragmites-CW (BPA 70 ± 28% and NP 52 ± 23%) and the unplanted-CW (BPA 62 ± 33% and NP 25 ± 37%). The higher capacity of the Heliconia-CW for BPA and NP removal suggests that a native plant from the tropics can contribute to a better performance of CW for removing these compounds. View Full-Text
Keywords: municipal wastewater; constructed wetlands; Bisphenol A; nonylphenol; biodegradation; tropical environment municipal wastewater; constructed wetlands; Bisphenol A; nonylphenol; biodegradation; tropical environment
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Toro-Vélez, A.; Madera-Parra, C.; Peña-Varón, M.; García-Hernández, H.; Lee, W.Y.; Walker, S.; Lens, P. Longitudinal Removal of Bisphenol-A and Nonylphenols from Pretreated Domestic Wastewater by Tropical Horizontal Sub-SurfaceConstructed Wetlands. Appl. Sci. 2017, 7, 834.

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