BIOCONCENTRACIÓN DE Pb, Cd Y As EN BIOMASA DE Eleocharis macrostachya (CYPERACEAE)
| Autor: | María del Rosario Peralta-Pérez, Erasmo Orrantia-Borunda, María Cecilia Valles-Aragón, Brisa María Alderete-Suárez, Sunem Canales-Reyes |
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| Rok vydání: | 2019 |
| Předmět: |
Cadmium
biology chemistry.chemical_element Bioconcentration 010501 environmental sciences biology.organism_classification 01 natural sciences Pollution Metal Phytoremediation chemistry visual_art Environmental chemistry Eleocharis macrostachya visual_art.visual_art_medium Inductively coupled plasma Water pollution Waste Management and Disposal Arsenic 0105 earth and related environmental sciences |
| Zdroj: | Revista Internacional de Contaminación Ambiental. 35:93-101 |
| ISSN: | 0188-4999 |
| Popis: | The increasing problems of water pollution have created unhealthy spaces for inhabit. Phytoremediation is a technique that use plants to remediate water, soil and air. Therefore, the ability of Eleocharis macrostachya to remediate contaminated water with lead (Pb), cadmium (Cd) and arsenic (As) was analyzed. The plants were collected, washed and transplanted in sand and placed in pots by treatment groups: T1 (Control), T2 (As 2 mg/L, Cd 10 mg/L, Pb 20 mg/L), T3 (As 4 mg/L, Cd 100 mg/L, Pb 200 mg/L) and T4 (As 8 mg/L, Cd 200 mg/L, Pb 400 mg/L). The pots were irrigated for 210 days, at the end of the experiment soil and plants were separated for digestion and subsequent analysis by inductively coupled plasma - optical emission spectrometry (ICP-OES). The bioconcentration (BCF) and translocation (TF) factors were calculated by kind of metal and treatment. The BCF for the three elements was greater than 1 in all the treatments. For As, BCF varied from 5.4 to 4.0, Cd 36.5 to 19.6 and Pb 5.7 to 2.7. The TF for the three elements was lower than 1 in T2, and greater than 1 in T3 and T4. The TF range for As was 0.6 to 4.7, Cd 0.5 to 2.6 and Pb 0.3 to 3.2. E. macrostachya result to be phytoextractor, being able to accumulate and traslocate Pb, Cd and As; its capacity improved with the increase of metal concentrations in water. |
| Databáze: | OpenAIRE |
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