DSpace About DSpace Software

DSpace Biblioteca Universidad de Talca (v1.5.2) >
Dirección de Investigación >
Artículos en publicaciones ISI - Universidad de Talca >

Please use this identifier to cite or link to this item: http://dspace.utalca.cl/handle/1950/9394

Title: Water phytoremediation of cadmium and copper using Azolla filiculoidesLam. in a hydroponic system
Authors: Valderrama, A.
Tapia, J.
Penailillo, P.
Carvajal, D.E.
Keywords: Azollaceae
heavy metals
hyperaccumulator plant
photosynthetic efficiency
waste water
Issue Date: Sep-2013
Publisher: WILEY-BLACKWELL, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
Citation: WATER AND ENVIRONMENT JOURNAL Volume: 27 Issue: 3 Pages: 293-300 DOI: 10.1111/wej.12015
Abstract: The aim of this work was to evaluate the utility of Azolla filiculoides growing in a hydroponic system for the phytoremediation of continental water polluted with cadmium and copper during 7 days of exposure. Cadmium and copper chloride were added to the medium at concentrations of 0.5-10mg/L and 0.1-25mg/L, respectively. Cadmium and copper levels were measured in each plant using flame atomic absorption spectrophotometry. The analytical methodology used to measure cadmium and copper levels was validated with standard reference material (SRM) - 1570 (spinach) National Institute of Standards and Technology. The results indicated that cadmium and copper phytoremediation was statistically significant with a maximum increase in plant tissue of 1623.20 and 6013.1g/g, respectively. This photosynthetic efficiency was chronically damaged when Azolla filiculoides were exposed to 10mg/L of Cd and 25mg/L of Cu. The Azolla plants were not affected in the other phytoremediation treatments with copper.
Description: Valderrama, A (Valderrama, Aly)[ 1 ]; Tapia, J (Tapia, Jaime)[ 1 ]; Penailillo, P (Penailillo, Patricio)[ 2 ]. [ 1 ] Univ Talca, Inst Quim Recursos Nat, Lab Quim Ambiental, Talca 3465548, Region Del Maul, Chile. [ 2 ] Univ Talca, Inst Biol Vegetal & Biotecnol, Talca 3465548, Region Del Maul, Chile
URI: http://dspace.utalca.cl/handle/1950/9394
ISSN: 1747-6585
Appears in Collections:Artículos en publicaciones ISI - Universidad de Talca

Files in This Item:

File Description SizeFormat

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Valid XHTML 1.0! DSpace Software Copyright © 2002-2009  The DSpace Foundation - Feedback