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Evaluation of Cr(VI) Removal from Tanning Effluents Using Magnetic Nanoparticles of Fe3O4 Synthesized with Olea europaea Bone Extract.
Bejarano-Meza, Maria; Deza-Carrasco, Fabricio Eduardo; Salinas-Herrera, Sofia; Flores-Calla, Susan; Jimenez-Pacheco, Hugo Guillermo.
Afiliação
  • Bejarano-Meza M; Universidad Católica de Santa María, Urbanization San Jose s/n, Umacollo, Arequipa 04013, Peru.
  • Deza-Carrasco FE; Universidad Católica de Santa María, Urbanization San Jose s/n, Umacollo, Arequipa 04013, Peru.
  • Salinas-Herrera S; Universidad Católica de Santa María, Urbanization San Jose s/n, Umacollo, Arequipa 04013, Peru.
  • Flores-Calla S; Universidad Católica de Santa María, Urbanization San Jose s/n, Umacollo, Arequipa 04013, Peru.
  • Jimenez-Pacheco HG; Universidad Católica de Santa María, Urbanization San Jose s/n, Umacollo, Arequipa 04013, Peru.
Molecules ; 29(2)2024 Jan 22.
Article em En | MEDLINE | ID: mdl-38276611
ABSTRACT
The tanning industry generates effluents with high chromium content, which require treatment prior to discharge into the sewage system. This article explores the use of magnetic magnetite nanoparticles (MNPs) to remove Cr(VI) from aqueous solutions, such as tanning effluents. The MNPs were synthesized by coprecipitation reaction using the Olea europaea extract as a reducing agent. Subsequently, they were characterized by dynamic light scattering spectroscopy (DLS), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). MNPs with irregular morphology and diameters ranging from 73.28 to 162.90 nm were obtained. Cr(VI) removal was performed using jar test methodology, and its efficiency was evaluated in the laboratory for different initial Cr(VI) (mg/L) concentration and nanoparticle (g/L) concentration. A kinetic study was developed and indicated that the equilibrium adsorption mechanism corresponds to a pseudo-second-order model. Furthermore, the isotherm analysis revealed that chromium adsorption best fits the Langmuir isotherm. Finally, Cr(VI) removal rates from 85% to 100% were achieved in tanning and retanning effluents.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Purificação da Água / Olea / Nanopartículas de Magnetita Idioma: En Revista: Molecules Assunto da revista: BIOLOGIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Peru País de publicação: Suíça
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Purificação da Água / Olea / Nanopartículas de Magnetita Idioma: En Revista: Molecules Assunto da revista: BIOLOGIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Peru País de publicação: Suíça