Potential of Lemna minor and Eichhornia crassipes for the phytoremediation of water contaminated with Nickel (II)

Phytoextraction of Nickel (II) in water by two types of aquatic macrophytes ( Lemna minor and Eichhornia crassipes ) was investigated using synthetic aqueous solutions of NiSO 4 at concentrations of 0.5, 1.5 and 2.5 mg/L. The toxic effects of nickel salt in plants were evaluated through the presence...

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Published in:Environmental monitoring and assessment 2023-01, Vol.195 (1), p.119-119, Article 119
Main Authors: Moreno-Rubio, Nataly, Ortega-Villamizar, Daniela, Marimon-Bolívar, Wilfredo, Bustillo-Lecompte, Ciro, Tejeda-Benítez, Lesly Patricia
Format: Article
Language:English
Subjects:
Aquatic plants
Aqueous solutions
Atmospheric Protection/Air Quality Control/Air Pollution
Bioaccumulation
Biological magnification
Bioremediation
Chlorosis
Duckweed
Earth and Environmental Science
Ecology
Ecotoxicology
Eichhornia crassipes
Environment
Environmental Management
Environmental monitoring
Environmental science
Freshwater plants
Kinetics
Lemna minor
Macrophytes
Mathematical analysis
Monitoring/Environmental Analysis
Necrosis
Nickel
Phytoremediation
Removal
Water pollution
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Summary:Phytoextraction of Nickel (II) in water by two types of aquatic macrophytes ( Lemna minor and Eichhornia crassipes ) was investigated using synthetic aqueous solutions of NiSO 4 at concentrations of 0.5, 1.5 and 2.5 mg/L. The toxic effects of nickel salt in plants were evaluated through the presence of necrosis and chlorosis. The bioconcentration factor, Nickel (II) removal efficiency and kinetics of removal were also calculated. Results of this study show bioconcentration factors higher than 1000, which categorize L. minor and E. crassipes as hyperaccumulators. Besides, L. minor presented a removal percentage higher than 68%, compared to E. crassipes that did not exceed 50% in any of the three concentrations studied. However, E. crassipes showed better resistance to the effects of nickel and obtained a greater removal capacity during the phytoremediation process that lasted for 10 days. In contrast, L. minor suffered necrosis and chlorosis in a concentration-dependent way. Consequently, both macrophytes are sustainable alternatives for nickel removal from contaminated water.
ISSN:0167-6369
1573-2959
DOI:10.1007/s10661-022-10688-3