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Study of adsorption of lead II in lignin modified from corn waste

The use of heavy metals, especially in the industrial sector, has attracted attention for the impacts generated by the use of potentially toxic metals to the environment and public health. Adsorption is a process in which a substance (adsorbate) is physically or chemically attached to the surface of...

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Principais autores: Schafhauser, Bruno Henrique, Gonçalves, Thays Raphaella, Consolin, Marcilene Ferrari Barriquello, Almeida, Vitor Cinque de, Pineda, Edgardo Alfonso Gomez, Consolin-Filho, Nelson
Formato: Artigo
Idioma: Português
Publicado em: Universidade Tecnológica Federal do Paraná (UTFPR) 2015
Acesso em linha: http://periodicos.utfpr.edu.br/rebrapa/article/view/3459
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spelling peri-article-34592015-11-24T13:31:25Z Study of adsorption of lead II in lignin modified from corn waste Schafhauser, Bruno Henrique Gonçalves, Thays Raphaella Consolin, Marcilene Ferrari Barriquello Almeida, Vitor Cinque de Pineda, Edgardo Alfonso Gomez Consolin-Filho, Nelson Adsorption; Heavy Metals; Lead II. Polymers; Crosslinked Lignin The use of heavy metals, especially in the industrial sector, has attracted attention for the impacts generated by the use of potentially toxic metals to the environment and public health. Adsorption is a process in which a substance (adsorbate) is physically or chemically attached to the surface of the adsorbent component and currently this process can be seen as an alternative to remove toxic metals from waste of agro-industrial sectors. This article aims to conduct a study about the adsorption of lead II (Pb II) on a modified natural polymer (lignin) obtained from corn stover. For the extraction of the lignin from lignocellulosic material, it was isolated by pulping with formic acid (CH2O2) at 80% concentration, obtaining lignin formica (LFOR). LFOR already been crosslinked with hydrochloric acid (HCl) 37.0% to give the polymer adsorbent used in this study crosslinked lignin formica (LFRT). Adsorption tests were performed with different times of contact between adsorbent and the solution of 10.0 mgL-1 lead II, and the final concentration of the solution was measured by atomic absorption spectrophotometry (AAS). The results which was obtained with atomic adsorption proved the adsorbent polymer show a capability to retain ions of lead II, removing after 100 minutes 98.87% of the heavy metal in the initial solution. Therefore, the polymer LFRT can be used as a possible means to remove heavy metal from agro-industrial effluents. DOI: 10.14685/rebrapa.v6i1.186 Universidade Tecnológica Federal do Paraná (UTFPR) Fundação Araucária e CNPq 2015-03-24 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf http://periodicos.utfpr.edu.br/rebrapa/article/view/3459 10.14685/rebrapa.v6i1.186 Brazilian Journal of Food Research; v. 6, n. 1 (2015); 16 - 25 Brazilian Journal of Food Research; v. 6, n. 1 (2015); 16 - 25 2448-3184 10.14685/rebrapa.v6i1 por http://periodicos.utfpr.edu.br/rebrapa/article/view/3459/pdf http://periodicos.utfpr.edu.br/rebrapa/article/downloadSuppFile/3459/364
institution Universidade Tecnológica Federal do Paraná
collection PERI
language Português
format Artigo
author Schafhauser, Bruno Henrique
Gonçalves, Thays Raphaella
Consolin, Marcilene Ferrari Barriquello
Almeida, Vitor Cinque de
Pineda, Edgardo Alfonso Gomez
Consolin-Filho, Nelson
spellingShingle Schafhauser, Bruno Henrique
Gonçalves, Thays Raphaella
Consolin, Marcilene Ferrari Barriquello
Almeida, Vitor Cinque de
Pineda, Edgardo Alfonso Gomez
Consolin-Filho, Nelson
Study of adsorption of lead II in lignin modified from corn waste
author_sort Schafhauser, Bruno Henrique
title Study of adsorption of lead II in lignin modified from corn waste
title_short Study of adsorption of lead II in lignin modified from corn waste
title_full Study of adsorption of lead II in lignin modified from corn waste
title_fullStr Study of adsorption of lead II in lignin modified from corn waste
title_full_unstemmed Study of adsorption of lead II in lignin modified from corn waste
title_sort study of adsorption of lead ii in lignin modified from corn waste
description The use of heavy metals, especially in the industrial sector, has attracted attention for the impacts generated by the use of potentially toxic metals to the environment and public health. Adsorption is a process in which a substance (adsorbate) is physically or chemically attached to the surface of the adsorbent component and currently this process can be seen as an alternative to remove toxic metals from waste of agro-industrial sectors. This article aims to conduct a study about the adsorption of lead II (Pb II) on a modified natural polymer (lignin) obtained from corn stover. For the extraction of the lignin from lignocellulosic material, it was isolated by pulping with formic acid (CH2O2) at 80% concentration, obtaining lignin formica (LFOR). LFOR already been crosslinked with hydrochloric acid (HCl) 37.0% to give the polymer adsorbent used in this study crosslinked lignin formica (LFRT). Adsorption tests were performed with different times of contact between adsorbent and the solution of 10.0 mgL-1 lead II, and the final concentration of the solution was measured by atomic absorption spectrophotometry (AAS). The results which was obtained with atomic adsorption proved the adsorbent polymer show a capability to retain ions of lead II, removing after 100 minutes 98.87% of the heavy metal in the initial solution. Therefore, the polymer LFRT can be used as a possible means to remove heavy metal from agro-industrial effluents. DOI: 10.14685/rebrapa.v6i1.186
publisher Universidade Tecnológica Federal do Paraná (UTFPR)
publishDate 2015
url http://periodicos.utfpr.edu.br/rebrapa/article/view/3459
_version_ 1805294514986811392
score 10,814766

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