Evaluation of Enydra anagallis remediation at a contaminated watercourse in south Brazil.

Autor: Demarco CF; Science and Engineering of Materials Postgraduate Program, Technological Development Center, UFPel, Pelotas, Brazil., Afonso TF; Science and Engineering of Materials Postgraduate Program, Technological Development Center, UFPel, Pelotas, Brazil., Pieniz S; Environmental Sciences Postgraduate Program, Engineering Center, UFPel, Pelotas, Brazil., Quadro MS; Environmental Sciences Postgraduate Program, Engineering Center, UFPel, Pelotas, Brazil., de Oliveira Camargo FA; Department of Soil Science, Agronomy Faculty Federal, University of Rio Grande do Sul, Porto Alegre, Brazil., Andreazza R; Science and Engineering of Materials Postgraduate Program, Technological Development Center, UFPel, Pelotas, Brazil.
Jazyk: angličtina
Zdroj: International journal of phytoremediation [Int J Phytoremediation] 2020; Vol. 22 (12), pp. 1216-1223. Date of Electronic Publication: 2020 Apr 16.
DOI: 10.1080/15226514.2020.1754759
Abstrakt: The aim of this study was to investigate the phytoremediation potential promoted by Enydra anagallis at anthropogenic polluted area - Santa Bárbara Stream, south Brazil. The watercourse was selected considering it is the main source of water to Pelotas city and the presence of high levels of nutrients and toxic metals. The phytoremediation indexes as bioconcentration factor (BCF), translocation factor (TF), and plant effective number (PEN) were estimated. The results highlighted the possibility of application of E. anagallis in phytoextraction of Ca, K, Mg and P, showing the ability of maintaining high levels of elements in aerial parts of the plant. It was also detected the rhizofiltration mechanism (BCF > 1.0 and TF < 1.0), with possible application for the removal of aluminum, arsenic, chromium, copper, iron, manganese, sodium, nickel, lead, sulfur, vanadium and zinc. Regarding the Plant Effective Number (PEN), it can be highlighted the values found for Al (55 plants), P (38 plants) and S (56 plants), being the number of plants needed for removal of 1 g. Thus, E. anagallis showed natural potential for removing contaminants from the aquatic environment and along with further studies, it could be a good recovery alternative for other contaminated watercourses.
Databáze: MEDLINE
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