EXPERIMENTAL ACID-BASE PURIFICATION OF CARBONIZED RICE HUSKS: EXPLORING THE ADSORPTION EFFECTIVENESS OF UNVALUED RICE INDUSTRY RESIDUE

Detalhes bibliográficos
Autor(a) principal: Crestani, Larissa
Data de Publicação: 2023
Outros Autores: Martins Sanderi, Danielli, Vieira, Yasmin, Luiz Dotto, Guilherme
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Holos
Texto Completo: http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16309
Resumo: The burning of rice husks produces natural silica and generates charcoal with excellent properties for the adsorption of different pollutants. The objective of this study was to enhance the adsorption properties of this industrial residue from burning rice husk through acid and base purifications. The raw coal (RC) was initially modified with HCl(aq.) and then with NaOH(aq.), and subsequently renamed MC. Efficiency was verified by the adsorption of methylene blue (MB) dye, considering a concentration of 10 mg L-1, dosage of 0.05 g L-1, pH 6.7, and 120 min. MB removal was 78% for RC and 97% for MC, with experimental capacities of 144.78 mg g-1 and 180.78 mg g-1, respectively. The kinetics were better adjusted by Avrami (R2 0.99, error <2.8%). The properties of charcoal improved with the modification, presenting a more porous structure, greater surface area and functional groups that contributed to adsorption, proving that simple purification methods, such as acid-base purification, can be crucial for waste reuse.  
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spelling EXPERIMENTAL ACID-BASE PURIFICATION OF CARBONIZED RICE HUSKS: EXPLORING THE ADSORPTION EFFECTIVENESS OF UNVALUED RICE INDUSTRY RESIDUEPURIFICAÇÃO ÁCIDO-BASE EXPERIMENTAL DE CASCAS DE ARROZ CARBONIZADAS: EXPLORANDO SUA EFICÁCIA NA ADSORÇÃO DE RESÍDUOS NÃO VALORIZADOS DA INDÚSTRIA DE ARROZactivated carbonmodificationremovaldyemethylene blueCarvão ativadomodificaçãoremoçãocoranteazul de metilenoThe burning of rice husks produces natural silica and generates charcoal with excellent properties for the adsorption of different pollutants. The objective of this study was to enhance the adsorption properties of this industrial residue from burning rice husk through acid and base purifications. The raw coal (RC) was initially modified with HCl(aq.) and then with NaOH(aq.), and subsequently renamed MC. Efficiency was verified by the adsorption of methylene blue (MB) dye, considering a concentration of 10 mg L-1, dosage of 0.05 g L-1, pH 6.7, and 120 min. MB removal was 78% for RC and 97% for MC, with experimental capacities of 144.78 mg g-1 and 180.78 mg g-1, respectively. The kinetics were better adjusted by Avrami (R2 0.99, error <2.8%). The properties of charcoal improved with the modification, presenting a more porous structure, greater surface area and functional groups that contributed to adsorption, proving that simple purification methods, such as acid-base purification, can be crucial for waste reuse.  A queima da casca de arroz produz sílica natural e gera um carvão com excelentes propriedades para adsorção de diferentes poluentes. O objetivo deste trabalho foi aprimorar as propriedades de adsorção desse resíduo carbonizado através de purificação ácida e básica. O carvão bruto (RC) foi modificado, primeiramente com HCl(aq.) e em seguida com NaOH(aq.), sendo re-nomeado MC. A eficiência foi investigada pela adsorção do corante azul de metileno (MB), considerando concentração 10 mg L-1, dosagem 0,05 g L-1, pH 6,7, e 120 min. A remoção de MB foi de 78% para RC e 97% para MC, com capacidades experimentais de 144,78 mg g-1 e 180,78 mg g-1, respectivamente. As cinéticas foram melhor ajustadas por Avrami (R2 0,99, erro <2,8%). As propriedades do carvão melhoraram com a modificação, apresentando estrutura mais porosa, maior área superficial e grupos funcionais que contribuíram para a adsorção, provando que métodos simples de purificação podem ser cruciais para a reutilização de resíduos.  Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte2023-12-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion"text""texto"application/pdfapplication/pdfhttp://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/1630910.15628/holos.2023.16309HOLOS; v. 5 n. 39 (2023): v.5 (2023)1807-1600reponame:Holosinstname:Instituto Federal do Rio Grande do Norte (IFRN)instacron:IFRNporenghttp://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16309/3858http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16309/3859Brazil, ContemporaneousBrasil, Contemporâneohttps://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessCrestani, LarissaMartins Sanderi, DanielliVieira, YasminLuiz Dotto, Guilherme2023-12-28T03:14:36Zoai:holos.ifrn.edu.br:article/16309Revistahttp://www2.ifrn.edu.br/ojs/index.php/HOLOSPUBhttp://www2.ifrn.edu.br/ojs/index.php/HOLOS/oaiholos@ifrn.edu.br||jyp.leite@ifrn.edu.br||propi@ifrn.edu.br1807-16001518-1634opendoar:2023-12-28T03:14:36Holos - Instituto Federal do Rio Grande do Norte (IFRN)false
dc.title.none.fl_str_mv EXPERIMENTAL ACID-BASE PURIFICATION OF CARBONIZED RICE HUSKS: EXPLORING THE ADSORPTION EFFECTIVENESS OF UNVALUED RICE INDUSTRY RESIDUE
PURIFICAÇÃO ÁCIDO-BASE EXPERIMENTAL DE CASCAS DE ARROZ CARBONIZADAS: EXPLORANDO SUA EFICÁCIA NA ADSORÇÃO DE RESÍDUOS NÃO VALORIZADOS DA INDÚSTRIA DE ARROZ
title EXPERIMENTAL ACID-BASE PURIFICATION OF CARBONIZED RICE HUSKS: EXPLORING THE ADSORPTION EFFECTIVENESS OF UNVALUED RICE INDUSTRY RESIDUE
spellingShingle EXPERIMENTAL ACID-BASE PURIFICATION OF CARBONIZED RICE HUSKS: EXPLORING THE ADSORPTION EFFECTIVENESS OF UNVALUED RICE INDUSTRY RESIDUE
Crestani, Larissa
activated carbon
modification
removal
dye
methylene blue
Carvão ativado
modificação
remoção
corante
azul de metileno
title_short EXPERIMENTAL ACID-BASE PURIFICATION OF CARBONIZED RICE HUSKS: EXPLORING THE ADSORPTION EFFECTIVENESS OF UNVALUED RICE INDUSTRY RESIDUE
title_full EXPERIMENTAL ACID-BASE PURIFICATION OF CARBONIZED RICE HUSKS: EXPLORING THE ADSORPTION EFFECTIVENESS OF UNVALUED RICE INDUSTRY RESIDUE
title_fullStr EXPERIMENTAL ACID-BASE PURIFICATION OF CARBONIZED RICE HUSKS: EXPLORING THE ADSORPTION EFFECTIVENESS OF UNVALUED RICE INDUSTRY RESIDUE
title_full_unstemmed EXPERIMENTAL ACID-BASE PURIFICATION OF CARBONIZED RICE HUSKS: EXPLORING THE ADSORPTION EFFECTIVENESS OF UNVALUED RICE INDUSTRY RESIDUE
title_sort EXPERIMENTAL ACID-BASE PURIFICATION OF CARBONIZED RICE HUSKS: EXPLORING THE ADSORPTION EFFECTIVENESS OF UNVALUED RICE INDUSTRY RESIDUE
author Crestani, Larissa
author_facet Crestani, Larissa
Martins Sanderi, Danielli
Vieira, Yasmin
Luiz Dotto, Guilherme
author_role author
author2 Martins Sanderi, Danielli
Vieira, Yasmin
Luiz Dotto, Guilherme
author2_role author
author
author
dc.contributor.author.fl_str_mv Crestani, Larissa
Martins Sanderi, Danielli
Vieira, Yasmin
Luiz Dotto, Guilherme
dc.subject.por.fl_str_mv activated carbon
modification
removal
dye
methylene blue
Carvão ativado
modificação
remoção
corante
azul de metileno
topic activated carbon
modification
removal
dye
methylene blue
Carvão ativado
modificação
remoção
corante
azul de metileno
description The burning of rice husks produces natural silica and generates charcoal with excellent properties for the adsorption of different pollutants. The objective of this study was to enhance the adsorption properties of this industrial residue from burning rice husk through acid and base purifications. The raw coal (RC) was initially modified with HCl(aq.) and then with NaOH(aq.), and subsequently renamed MC. Efficiency was verified by the adsorption of methylene blue (MB) dye, considering a concentration of 10 mg L-1, dosage of 0.05 g L-1, pH 6.7, and 120 min. MB removal was 78% for RC and 97% for MC, with experimental capacities of 144.78 mg g-1 and 180.78 mg g-1, respectively. The kinetics were better adjusted by Avrami (R2 0.99, error <2.8%). The properties of charcoal improved with the modification, presenting a more porous structure, greater surface area and functional groups that contributed to adsorption, proving that simple purification methods, such as acid-base purification, can be crucial for waste reuse.  
publishDate 2023
dc.date.none.fl_str_mv 2023-12-18
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
"text"
"texto"
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16309
10.15628/holos.2023.16309
url http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16309
identifier_str_mv 10.15628/holos.2023.16309
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16309/3858
http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16309/3859
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.coverage.none.fl_str_mv Brazil, Contemporaneous
Brasil, Contemporâneo
dc.publisher.none.fl_str_mv Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte
publisher.none.fl_str_mv Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte
dc.source.none.fl_str_mv HOLOS; v. 5 n. 39 (2023): v.5 (2023)
1807-1600
reponame:Holos
instname:Instituto Federal do Rio Grande do Norte (IFRN)
instacron:IFRN
instname_str Instituto Federal do Rio Grande do Norte (IFRN)
instacron_str IFRN
institution IFRN
reponame_str Holos
collection Holos
repository.name.fl_str_mv Holos - Instituto Federal do Rio Grande do Norte (IFRN)
repository.mail.fl_str_mv holos@ifrn.edu.br||jyp.leite@ifrn.edu.br||propi@ifrn.edu.br
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