Iron nanoparticles based nanofluids for in situ environmental remediation

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In this work, stabilization of commercial nZVI (NANOFER STAR, hereafter NSTAR, provided by NANOIRON s.r.o.) with carboxymethyl cellulose (CMC) was studied. NFs prepared with CMC (CMC-NSTAR) were compared and with NFs prepared without CMC (b-NSTAR). Stabilization was evaluated by sedimentation rate a...

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Autores principales: Crespi, Julieta, Binetti Basterrechea, Gian Franco, Finoli, Agostina Sol, Montesinos, Victor Nahuel, Quici, Natalia
Formato: Documento de conferencia publisherVersion
Lenguaje:Inglés
Publicado: Oscar Pagola (Asociación Argentina de Ingenieros Químicos) 2024
Materias:
nanomateriales
remediación ambiental
nanopartículas de hierro cerovalente
nanofluidos
Cr(VI)
Acceso en línea:http://hdl.handle.net/20.500.12272/11117
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-11117
record_format dspace
spelling I68-R174-20.500.12272-111172024-07-10T23:06:33Z Iron nanoparticles based nanofluids for in situ environmental remediation Crespi, Julieta Binetti Basterrechea, Gian Franco Finoli, Agostina Sol Montesinos, Victor Nahuel Quici, Natalia nanomateriales remediación ambiental nanopartículas de hierro cerovalente nanofluidos Cr(VI) In this work, stabilization of commercial nZVI (NANOFER STAR, hereafter NSTAR, provided by NANOIRON s.r.o.) with carboxymethyl cellulose (CMC) was studied. NFs prepared with CMC (CMC-NSTAR) were compared and with NFs prepared without CMC (b-NSTAR). Stabilization was evaluated by sedimentation rate analysis of the nanoparticles in CMC-NSTAR versus b-NSTAR. The mobility of both stabilized and non-stabilized NFs was studied in columns filled with porous media at laboratory and pilot scale. NFs were injected upwards in the column with a peristaltic pump, and the nZVI concentration was monitored with turbidity measurement at the outlet stream. Then, NFs reactivity for the removal of aqueous Cr(VI) was tested in batch and columns experiments. In the batch experiments, 15 mg L-1 Cr(VI) solutions and the NFs were mixed with an orbital shaker, with a Fe:Cr molar ratio = 10. In the column experiments, a porous media bed was loaded with 0.5 g of n-NSTAR and then a 100 mg L-1 Cr(VI) solution was injected upwards. Crespi, Julieta. Instituto Sabato (UNSAM-CNEA). División Química de la Remediación Ambiental (CNEA). Centro de Tecnologías Químicas (UTN-FRBA); Argentina Binetti Basterrechea, Gian Franco. Centro de Tecnologías Químicas (UTN-FRBA); Argentina Finoli, Agostina Sol. Centro de Tecnologías Químicas (UTN-FRBA); Argentina Montesinos, Victor Nahuel. División Química de la Remediación Ambiental (CONICET-CNEA). Centro de Tecnologías Químicas (UTN-FRBA); Argentina Quici, Natalia. División Química de la Remediación Ambiental (CONICET-CNEA). Centro de Tecnologías Químicas (UTN-FRBA); Argentina 2024-07-10T23:06:31Z 2024-07-10T23:06:31Z 2024 info:eu-repo/semantics/conferenceObject publisherVersion Proceedings of WCCE11 – Book of abstracts 2953-5565 http://hdl.handle.net/20.500.12272/11117 eng openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Attribution-NonCommercial-NoDerivatives 4.0 Internacional Sin obras derivadas (“Creative Commons No Derivate Works”) pdf Oscar Pagola (Asociación Argentina de Ingenieros Químicos)
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic nanomateriales
remediación ambiental
nanopartículas de hierro cerovalente
nanofluidos
Cr(VI)
spellingShingle nanomateriales
remediación ambiental
nanopartículas de hierro cerovalente
nanofluidos
Cr(VI)
Crespi, Julieta
Binetti Basterrechea, Gian Franco
Finoli, Agostina Sol
Montesinos, Victor Nahuel
Quici, Natalia
Iron nanoparticles based nanofluids for in situ environmental remediation
topic_facet nanomateriales
remediación ambiental
nanopartículas de hierro cerovalente
nanofluidos
Cr(VI)
description In this work, stabilization of commercial nZVI (NANOFER STAR, hereafter NSTAR, provided by NANOIRON s.r.o.) with carboxymethyl cellulose (CMC) was studied. NFs prepared with CMC (CMC-NSTAR) were compared and with NFs prepared without CMC (b-NSTAR). Stabilization was evaluated by sedimentation rate analysis of the nanoparticles in CMC-NSTAR versus b-NSTAR. The mobility of both stabilized and non-stabilized NFs was studied in columns filled with porous media at laboratory and pilot scale. NFs were injected upwards in the column with a peristaltic pump, and the nZVI concentration was monitored with turbidity measurement at the outlet stream. Then, NFs reactivity for the removal of aqueous Cr(VI) was tested in batch and columns experiments. In the batch experiments, 15 mg L-1 Cr(VI) solutions and the NFs were mixed with an orbital shaker, with a Fe:Cr molar ratio = 10. In the column experiments, a porous media bed was loaded with 0.5 g of n-NSTAR and then a 100 mg L-1 Cr(VI) solution was injected upwards.
format Documento de conferencia
publisherVersion
author Crespi, Julieta
Binetti Basterrechea, Gian Franco
Finoli, Agostina Sol
Montesinos, Victor Nahuel
Quici, Natalia
author_facet Crespi, Julieta
Binetti Basterrechea, Gian Franco
Finoli, Agostina Sol
Montesinos, Victor Nahuel
Quici, Natalia
author_sort Crespi, Julieta
title Iron nanoparticles based nanofluids for in situ environmental remediation
title_short Iron nanoparticles based nanofluids for in situ environmental remediation
title_full Iron nanoparticles based nanofluids for in situ environmental remediation
title_fullStr Iron nanoparticles based nanofluids for in situ environmental remediation
title_full_unstemmed Iron nanoparticles based nanofluids for in situ environmental remediation
title_sort iron nanoparticles based nanofluids for in situ environmental remediation
publisher Oscar Pagola (Asociación Argentina de Ingenieros Químicos)
publishDate 2024
url http://hdl.handle.net/20.500.12272/11117
work_keys_str_mv AT crespijulieta ironnanoparticlesbasednanofluidsforinsituenvironmentalremediation
AT binettibasterrecheagianfranco ironnanoparticlesbasednanofluidsforinsituenvironmentalremediation
AT finoliagostinasol ironnanoparticlesbasednanofluidsforinsituenvironmentalremediation
AT montesinosvictornahuel ironnanoparticlesbasednanofluidsforinsituenvironmentalremediation
AT quicinatalia ironnanoparticlesbasednanofluidsforinsituenvironmentalremediation
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