Influence of chemical speciation on the separation of metal ions from chelating agents by nanofiltration membranes

The simultaneous separation of various metal ions (nickel, copper, calcium, and iron) from chelating agents (EDTA and citric acid in water streams using Nanofiltration membranes is analyzed. Assuming that multiply-charged species are highly rejected, chemical speciation com-10 putations reproduce th...

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Detalles Bibliográficos
Autores: Balanya Martí, Teresa|||0000-0001-6485-5145, Labanda Angulo, Jordi, Llorens Llacuna, Joan, Sabaté Reboll, José|||0000-0003-4977-1941
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/176960
Acceso en línea:https://hdl.handle.net/2117/176960
https://dx.doi.org/10.1080/01496395.2018.1502781
Access Level:acceso abierto
Palabra clave:Membrane separation
Nanofiltration
Metal
Chelate
Speciation
Separació de membranes
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Impacte ambiental
Descripción
Sumario:The simultaneous separation of various metal ions (nickel, copper, calcium, and iron) from chelating agents (EDTA and citric acid in water streams using Nanofiltration membranes is analyzed. Assuming that multiply-charged species are highly rejected, chemical speciation com-10 putations reproduce the observed patterns of metal and ligand rejection at different pH values and concentrations.