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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Application of alginate extraction residue for Al(III) ions biosorption: a complete batch system evaluation

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Autor(es):
de Sa Costa, Heloisa Pereira [1] ; Carlos da Silva, Meuris Gurgel [1] ; Adeodato Vieira, Melissa Gurgel [1]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Estadual Campinas, Sch Chem Engn, Dept Proc & Prod Design, Albert Einstein Av 500, BR-13083852 Campinas, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: Environmental Science and Pollution Research; v. 28, n. 37, p. 51826-51840, OCT 2021.
Citações Web of Science: 0
Resumo

The residue derived from the alginate extraction from S. filipendula was applied for the biosorption of aluminum from aqueous medium. The adsorptive capacity of the residue (RES) was completely evaluated in batch mode. The effect of pH, contact time, initial concentration, and temperature was assessed through kinetic, equilibrium, and thermodynamic studies. The biosorbent was characterized prior and post-Al biosorption by N-2 physisorption, Hg porosimetry, He pycnometry, and thermogravimetry analyses. Equilibrium was achieved in 60 min. Kinetics obeys pseudo-second-order model at aluminum higher concentrations. Isotherms followed Freundlich model at low temperature (293.15 K) and D-R or Langmuir model at higher temperatures (303 and 313 K). Data modeling indicated the occurrence of both chemical and physical interactions in the aluminum adsorption mechanism using RES. The maximum adsorption capacity obtained was 1.431 mmol/g at 293 K. The biosorption showed a spontaneous, favorable, and exotherm character. A simplified batch design was performed, indicating that the residue is a viable biosorbent, achieving high percentages of removal using low biomass dosage. (AU)

Processo FAPESP: 17/18236-1 - Recuperação de íons metálicos nobres e íons terras-raras presentes em soluções aquosas por bioadsorção em partículas de blenda de sericina e alginato
Beneficiário:Melissa Gurgel Adeodato Vieira
Modalidade de apoio: Auxílio à Pesquisa - Regular
Processo FAPESP: 19/11353-8 - Centro Brasileiro de Pesquisa em Água (BWRC)
Beneficiário:Lauro Tatsuo Kubota
Modalidade de apoio: Auxílio à Pesquisa - Programa Centros de Pesquisa em Engenharia