Potential of phytomining for the sustainable recovery of Ni and other critical elements from abandoned mine wastes

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 to...

Descripción completa

Detalles Bibliográficos
Autor: Cerdeira Pérez, Andrea
Tipo de recurso: tesis doctoral
Fecha de publicación:2022
País:España
Institución:Universidad de Santiago de Compostela (USC)
Repositorio:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
Idioma:inglés
OAI Identifier:oai:minerva.usc.gal:10347/28938
Acceso en línea:http://hdl.handle.net/10347/28938
Access Level:acceso abierto
Palabra clave:Materias::Investigación::25 Ciencias de la tierra y del espacio::2511 Ciencias del suelo (Edafología)::251106 Conservación de suelos
Descripción
Sumario: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.