Evaluation of nutrient and chlorinated organics removal and their bioaccumulation pathways with the floating plant Eichhornia crassipes exposed to pulp mill effluents

Authors

  • Diana Margarita Míguez Caramés Laboratorio Tecnológico del Uruguay http://orcid.org/0000-0001-5364-5951
  • Anabel Martínez-Bengochea Laboratorio Tecnológico del Uruguay
  • María Victoria Carrara Balbi Laboratorio Tecnológico del Uruguay
  • Natalia Ferreira Unidad Fray Bentos, Laboratorio Tecnológico del Uruguay
  • Katherine Bombi Haedo Unidad Fray Bentos, Laboratorio Tecnológico del Uruguay
  • Elise Cartmell Cranfield Water Institute, School of Applied Sciences, Cranfield University

DOI:

https://doi.org/10.26461/09.03

Keywords:

Eichhornia crassipes, Effluent, Phytoremediation, Chlorinated organics, Bioaccumulation

Abstract

The aim of this pilot study was to evaluate the bioaccumulation processes of Eichhornia crassipes exposed to a secondary effluent obtained from a Kraft pulp mill that drains the effluents into the River Uruguay, near Fray Bentos city, Rio Negro, Uruguay. The effluent was characterized before and after the Eichhornia culture, and organic halogens concentrations were determined in control and exposed specimens. Macroscopic changes were observed in the plant and the bioaccumulation routes were studied, the higher chlorinated organic compounds were found in the leaves (at a concentration of 9,4 µg/g by comparison to 2,1 µg/g of the control biomass). Nutrient removal was in the order of 90%. The results suggest that phytoremediation with floating plants can be advantageously alternative as a tertiary treatment methodology in subtropical and tropical countries to diminish the concentration of recalcitrant chlorinated organics and also to remove nitrate and phosphate from pulp mill effluents.

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Published

2014-11-21

How to Cite

Míguez Caramés, D. M., Martínez-Bengochea, A., Carrara Balbi, M. V., Ferreira, N., Bombi Haedo, K., & Cartmell, E. (2014). Evaluation of nutrient and chlorinated organics removal and their bioaccumulation pathways with the floating plant Eichhornia crassipes exposed to pulp mill effluents. INNOTEC, (9 ene-dic), 19–23. https://doi.org/10.26461/09.03

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Articles