Comprehensive study of electrokinetic-assisted phytoextraction of metals from mine tailings by applying direct and alternate current

Medina-Díaz, Hassay Lizeth; López‐Bellido, Francisco J.; Alonso-Azcárate, Jacinto; Fernández-Morales, Francisco Jesús; Rodríguez, Luis Carbajal

doi:10.1016/j.electacta.2023.142051

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Cited by 6 publications

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“…Therefore, the values required to calculate the EC of the solutions are C i , z i , and λ i , where z i and λ i are the inherent ion values of four species generated or consumed during the reactions (Table ). − …”

Section: Experiments and Calculationmentioning

confidence: 99%

Estimation of the Amount of CO₂ Chemically Absorbed in Real Time by Measuring the Electrical Conductivity Variation of Monoethanol-Amine Aqueous Solutions

Han,

Wee

2023

Energy Fuels

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Section: Experiments and Calculationmentioning

confidence: 99%

Estimation of the Amount of CO₂ Chemically Absorbed in Real Time by Measuring the Electrical Conductivity Variation of Monoethanol-Amine Aqueous Solutions

Han,

Wee

2023

Energy Fuels

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Can rare earth elements be recovered from abandoned mine tailings by means of electrokinetic-assisted phytoextraction?

Medina-Díaz,

López-Bellido,

Alonso-Azcárate

et al. 2024

Environ Sci Pollut Res

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Given the high impact of traditional mining, the recovery of rare earth elements (REEs) from hazardous waste materials could become an option for the future in accordance with the principles of the circular economy. In this work, the technical feasibility of REEs recovery from metal mine tailings has been explored using electrokinetic-assisted phytoremediation with ryegrass (Lolium perenne L.). Phytoextraction combined with both AC current and DC current with reversal polarity was applied (1 V cm−1, 8 h day−1) to real mine tailings containing a total concentration of REEs (Sc, Y, La, Ce, Pr, and Nd) of around 146 mg kg−1. Changes in REEs geochemical fractionation and their concentrations in the soil pore water showed the mobilization of REEs caused by plants and electric current; REE availability was increased to a higher extent for combined electrokinetic-assisted phytoextraction treatments showing the relevant role of plants in the process. Our results demonstrated the initial hypothesis that it is feasible to recover REEs from real metal mining waste by phytoextraction and that the performance of this technology can be significantly improved by applying electric current, especially of the AC type, which increased REE accumulation in ryegrass in the range 57–68% as compared to that of the treatment without electric field application.

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Removal of heavy metals from mine tailings by in-situ bioleaching coupled to electrokinetics

Acosta Hernández,

Muñoz Morales,

Fernández Morales

et al. 2023

Environmental Research

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Comprehensive study of electrokinetic-assisted phytoextraction of metals from mine tailings by applying direct and alternate current

Cited by 6 publications

References 46 publications

Estimation of the Amount of CO₂ Chemically Absorbed in Real Time by Measuring the Electrical Conductivity Variation of Monoethanol-Amine Aqueous Solutions

Estimation of the Amount of CO₂ Chemically Absorbed in Real Time by Measuring the Electrical Conductivity Variation of Monoethanol-Amine Aqueous Solutions

Can rare earth elements be recovered from abandoned mine tailings by means of electrokinetic-assisted phytoextraction?

Removal of heavy metals from mine tailings by in-situ bioleaching coupled to electrokinetics

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Comprehensive study of electrokinetic-assisted phytoextraction of metals from mine tailings by applying direct and alternate current

Cited by 6 publications

References 46 publications

Estimation of the Amount of CO2 Chemically Absorbed in Real Time by Measuring the Electrical Conductivity Variation of Monoethanol-Amine Aqueous Solutions

Estimation of the Amount of CO2 Chemically Absorbed in Real Time by Measuring the Electrical Conductivity Variation of Monoethanol-Amine Aqueous Solutions

Can rare earth elements be recovered from abandoned mine tailings by means of electrokinetic-assisted phytoextraction?

Removal of heavy metals from mine tailings by in-situ bioleaching coupled to electrokinetics

Contact Info

Product

Resources

About

Estimation of the Amount of CO₂ Chemically Absorbed in Real Time by Measuring the Electrical Conductivity Variation of Monoethanol-Amine Aqueous Solutions

Estimation of the Amount of CO₂ Chemically Absorbed in Real Time by Measuring the Electrical Conductivity Variation of Monoethanol-Amine Aqueous Solutions