TY  - SER
AU  - Sobrinho, Nelson Moura Brasil do Amaral 
AU  - Andrade, André Fernão Martins de
AU  - Lima, Erica Souto Abreu 
AU  - Zonta, Everaldo 
AU  - Magalhães, Márcio Osvaldo Lima 
TI  - Metals Phytoextraction by Cordia africana from Soils Contaminated with Oil Drilling Waste
KW  - CONTAMINAÇÃO
KW  - METAL PESADO
KW  - SOLO
N1  - Publicação on-line; 27 ref.; 4 tables; 1 illus.; Summary (En)
N2  - 

Abstract

Oil exploration and production generate large quantities of waste, which may contain contaminants such as barium
and lead. Therefore, more studies aimed at decreasing the levels of heavy metals in contaminated sites, using methods
such as phytoremediation, are needed. In a preliminary assay, samples of soil contaminated with oil drilling waste were
incubated with different concentrations (2 or 6 mmol L-1) of ethylenediaminetetraacetic acid (EDTA). Subsequently,
an experiment was conducted in a greenhouse to evaluate the phytoremediation potential of the tree Cordia africana.
EDTA induced mobilization and translocation of lead, manganese, and iron into the C. africana leaves but had no
effect on barium. The quantity of heavy metal contaminants accumulated in the plant vegetative parts showed that
C. africana cannot be used as a phytoextractor for the tested metals; however, it can be used as a phytostabilizer.

Keywords: contamination, phytoremediation, heavy metals, EDTA
UR  - https://www.scielo.br/j/floram/a/fDDbj6R5qTsjcT3YPttNzXw/?format=pdf&lang=en
ER  -