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Evaluación de macrófitas autóctonas de flotación libre para su empleo en el tratamiento de aguas contaminadas con metales pesados
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zevallos, Wilfredo Tello Loureiro, Dana Belén Reeves, María Cecilia Yujnovsky, Fabiana Salvatierra, Lucas Matías Pérez, Leonardo Martín |
| Copyright Year | 2016 |
| Abstract | Plant-based systems for the treatment of contaminated environments (phytoremediation) have proven to be highly efficient in removing different substances, especially heavy metals. The range of plant species that are used in phytoremediation processes is generally reduced and is mainly restricted to hellophytes or emerging species. However, in strictly aquatic and high-flow treatment systems, the use of free floating plants could be more adequate. For a treatment system based on phytoremediation strategies be propitious and sustainable it is essential that the plant species used in the design are not only efficient in pollutants removal, but also abundant at the region, easily accessible and do not require special culture conditions. Considering these, at the present work we firstly evaluate different autochthonous aquatic macrophytes obtained from Paraná River in its capacity to growth, adapt and reproduce at laboratory «indoor» conditions. Later, we study plants potential to remove heavy metals from artificially-contaminated water samples. From the different pre-selected species, only Salvinia biloba Raddi (Salvinia herzogii) showed a wide capacity of adaptation and reproduction in greenhouse conditions. Moreover, S. biloba lead (Pb) removal capacity was also evaluated using water samples contaminated with three different metal concentrations and at different exposure times, demonstrating a high efficiency in the pollutant elimination for this plant. Additionally, the bioconcentration factor Energeia, Vol 14, Nro. 14, 2016, ISSN 1668-1622 32 (BCF) calculated for Pb indicates that S. biloba could be considered as a metal hyperaccumulator plant. Our results suggest that incorporation of these macrophytes in wastewater treatment systems design could be a successful strategy to efficiently remove heavy metals by bioremediation processes. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ri.conicet.gov.ar/bitstream/handle/11336/68960/CONICET_Digital_Nro.29c81965-64be-403a-909e-669e1da19fa3_A-2-7%20(1).pdf?isAllowed=y&sequence=8 |
| Alternate Webpage(s) | https://repositorio.uca.edu.ar/bitstream/123456789/5741/1/macrofitas-tratamiento-aguas-contaminadas.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
