Artículo
A continuous method for arsenic removal from groundwater using hybrid biopolymer-iron-nanoaggregates: improvement through factorial designs
Batistelli, Marianela; Perez Mora, Barbara Edith
; Mangiameli, María Florencia; Mamana, Nadia
; Lopez, Gerardo; Goddio, María F.; Bellú, Sebastián Eduardo
; González, Juan Carlos
Fecha de publicación:
10/2020
Editorial:
John Wiley & Sons Ltd
Revista:
Journal of Chemical Technology and Biotechnology
ISSN:
0268-2575
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
BACKGROUND: Due to a variety of toxicological problems, the presence of As(V) in aquifers is a significant concern. Sorption using chitosan doped with iron nanoaggregates results in a green and cheap methodology for its elimination. RESULTS: The hybrid sorbent was characterized by SEM, EDS, TGA, XRD, and FTIR spectroscopy. Its stability against pH and time was determined by ICP-MS, while conventional analytical techniques verified its Fe content. The sum of an individual As(V) removal capacity by chitosan and iron nanoaggregates was smaller than that of the hybrid sorbent, indicating the existence of synergy. CONCLUSION: This study demonstrates the great capacity of the hybrid sorbent to eliminate As(V) working with a continuous system (columns). The additional use of a factorial design allows for determining of optimal operating values to optimize two responses. In other words, in this multi-response system, column service time (tb) was minimized and, at the same time, it maximized the volumes of purified water obtained ([As(V)] <0.05 m L−1) using desirability function.
Palabras clave:
ARSENIC
,
GROUNDWATER
,
IMPROVEMENT
,
IRON-NANOPARTICLE
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CEFOBI)
Articulos de CENTRO DE EST.FOTOSINTETICOS Y BIOQUIMICOS (I)
Articulos de CENTRO DE EST.FOTOSINTETICOS Y BIOQUIMICOS (I)
Articulos(IFIR)
Articulos de INST.DE FISICA DE ROSARIO (I)
Articulos de INST.DE FISICA DE ROSARIO (I)
Articulos(IQUIR)
Articulos de INST.DE QUIMICA ROSARIO
Articulos de INST.DE QUIMICA ROSARIO
Citación
Batistelli, Marianela; Perez Mora, Barbara Edith; Mangiameli, María Florencia; Mamana, Nadia; Lopez, Gerardo; et al.; A continuous method for arsenic removal from groundwater using hybrid biopolymer-iron-nanoaggregates: improvement through factorial designs; John Wiley & Sons Ltd; Journal of Chemical Technology and Biotechnology; 2020; 10-2020; 1-31
Compartir
Altmétricas