Potential of phytomining for the sustainable recovery of Ni and other critical elements from abandoned mine wastes
- Cerdeira Pérez, Andrea
- Ángeles Prieto Fernández Doktorvater/Doktormutter
Universität der Verteidigung: Universidade de Santiago de Compostela
Fecha de defensa: 17 von Juni von 2022
- Paula María Lima Castro Präsident/in
- Vanessa Álvarez López Sekretärin
- Celestino Quintela Sabarís Vocal
Art: Dissertation
Zusammenfassung
Phytomining is an environmentally-friendly green technology for obtaining industrially relevant trace elements from natural metal-enriched soils or metal-contaminated soils or wastes. In mine-affected soils, this technique could provide a secondary source of Ni while at the same time contributing towards soil remediation. A three-year field study was conducted in a serpentine quarry in Galicia evaluating the performance of different Ni hyperaccumulating plant species and its optimisation using soil amendments and bioaugmentation. Secondly, bioprospecting activities were conducted in two abandoned mine areas in the NW Spain to study the plant-bacteria-soil system in soils enriched in critical or strategic elements with the view of develop phytomining techniques for the recovery of these valuable elements.