Chitosan as a Strategy in the Treatment of Effluent

Detalhes bibliográficos
Autor(a) principal: Macêdo, Marina de Oliveira Cardoso
Data de Publicação: 2022
Outros Autores: Macêdo, Haroldo Reis Alves de, Araújo, André Luís Calado
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/36819
Resumo: The treatment of effluents requires new methodologies for the treatment of the tailings. One option is the use of natural coagulants. Chitosan has amino groups in the polymeric chains that allow it to act as a cationic polyelectrolyte and present a high density of charges, which are easily adsorbed on negatively charged surfaces, which is the case for most colloidal impurities present in water. Thus, this work used chitosan in the coagulation/flocculation process to remove color, turbidity and suspension of solids, as a strategy in the treatment of effluents. For that, samples of effluents from the textile industry in the of State of Rio Grande do Norte and samples of effluents from stabilization Lagoons in the municipalities of Touros and Santa Cruz were used in the coagulation/flocculation tests using jar-test. The results proved to be efficient for the removal of color, turbidity and suspension of solids from the samples. The best dosages were 22.5 mg/L and 37.5 mg/L for textile industry effluents, 52.5 mg/L and 60 mg/L for Santa Cruz lagoon effluent; 30 mg/L and 37.5 mg/L for effluent from Touros lagoon. It was observed in this work that chitosan presented in an optimal proportion, that is, the addition of more chitosan did not provide greater removal and that it can be used as a coagulant/flocculant in the treatment of effluents from both the textile industry and domestic effluents, replacing the synthetic coagulants or being used together with them.
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spelling Chitosan as a Strategy in the Treatment of EffluentEl Chitosan como Esatrategia en el Tratamiento de Aguas ResidualesQuitosana como Estratégia no Tratamento de EfeluentesChitosánEfluente textileLaguna de estabilización.ChitosanTextile effluentStabilization lagoon.QuitosanaEfluente têxtilLagoa de estabilização.The treatment of effluents requires new methodologies for the treatment of the tailings. One option is the use of natural coagulants. Chitosan has amino groups in the polymeric chains that allow it to act as a cationic polyelectrolyte and present a high density of charges, which are easily adsorbed on negatively charged surfaces, which is the case for most colloidal impurities present in water. Thus, this work used chitosan in the coagulation/flocculation process to remove color, turbidity and suspension of solids, as a strategy in the treatment of effluents. For that, samples of effluents from the textile industry in the of State of Rio Grande do Norte and samples of effluents from stabilization Lagoons in the municipalities of Touros and Santa Cruz were used in the coagulation/flocculation tests using jar-test. The results proved to be efficient for the removal of color, turbidity and suspension of solids from the samples. The best dosages were 22.5 mg/L and 37.5 mg/L for textile industry effluents, 52.5 mg/L and 60 mg/L for Santa Cruz lagoon effluent; 30 mg/L and 37.5 mg/L for effluent from Touros lagoon. It was observed in this work that chitosan presented in an optimal proportion, that is, the addition of more chitosan did not provide greater removal and that it can be used as a coagulant/flocculant in the treatment of effluents from both the textile industry and domestic effluents, replacing the synthetic coagulants or being used together with them.El tratamiento de efluentes requiere de nuevas metodologías para el tratamiento de los relaves. Una opción es el uso de coagulantes naturales. El chiotosán tiene grupos amino en las cadenas poliméricas que le permiten actuar como un polielectrolito catiónico y presentar una alta densidad de cargas, las cuales son fácilmente adsorbidas en superficies cargadas negativamente, como es el caso de la mayoría de las impurezas coloidales presentes en el agua. Así, este trabajo utilizó chiotosán en el proceso de coagulación/floculación para remover color, turbidez y suspensión de sólidos, como estrategia en el tratamiento de efluentes. Para eso, se utilizaron muestras de efluentes de la industria textil en el Estado de Rio Grande do Norte y muestras de efluentes de Lagunas de Estabilización en los municipios de Touros y Santa Cruz en las pruebas de coagulación/floculación utilizando el jar-test. Los resultados demostraron ser eficientes para la remoción de color, turbidez y suspensión de sólidos de las muestras. Las mejores dosificaciones fueron 22,5 mg/L y 37,5 mg/L para efluentes de la industria textil, 52,5 mg/L y 60 mg/L para efluentes de la laguna Santa Cruz; 30 mg/L y 37,5 mg/L para efluentes de la laguna de Touros. Se observó en este trabajo que el chitosán se presentó en una proporción óptima, es decir, la adición de más chiotosán no proporcionó mayor remoción y que puede ser utilizado como coagulante/floculante en el tratamiento de efluentes tanto de la industria textil como domésticos. efluentes, reemplazando a los coagulantes sintéticos o utilizándose junto con ellos.O tratamento de efluentes requer novas metodologias para o tratamento dos rejeitos. Uma opção é o uso de coagulantes naturais. A quitosana possui grupos amino nas cadeias poliméricas que lhe permitem atuar como um polieletrólito catiônico e apresentar alta densidade de cargas, que são facilmente adsorvidas em superfícies carregadas negativamente, como é o caso da maioria das impurezas coloidais presentes na água. Assim, este trabalho utilizou quitosana no processo de coagulação/floculação para remoção de cor, turbidez e suspensão de sólidos, como estratégia no tratamento de efluentes. Para tanto, amostras de efluentes da indústria têxtil do Estado do Rio Grande do Norte e amostras de efluentes de lagoas de estabilização dos municípios de Touros e Santa Cruz foram utilizadas nos testes de coagulação/floculação utilizando jar-test. Os resultados mostraram-se eficientes na remoção de cor, turbidez e suspensão de sólidos das amostras. As melhores dosagens foram 22,5 mg/L e 37,5 mg/L para efluentes da indústria têxtil, 52,5 mg/L e 60 mg/L para efluentes da lagoa Santa Cruz; 30 mg/L e 37,5 mg/L para o efluente da lagoa dos Touros. Observou-se neste trabalho que a quitosana apresentou-se em proporção ótima, ou seja, a adição de mais quitosana não proporcionou maior remoção e que pode ser utilizada como coagulante/floculante no tratamento de efluentes tanto da indústria têxtil como doméstica efluentes, substituindo os coagulantes sintéticos ou sendo utilizados em conjunto com eles.Research, Society and Development2022-11-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/3681910.33448/rsd-v11i16.36819Research, Society and Development; Vol. 11 No. 16; e22111636819Research, Society and Development; Vol. 11 Núm. 16; e22111636819Research, Society and Development; v. 11 n. 16; e221116368192525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/36819/31364Copyright (c) 2022 Marina de Oliveira Cardoso Macêdo; Haroldo Reis Alves de Macêdo; André Luís Calado Araújohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessMacêdo, Marina de Oliveira CardosoMacêdo, Haroldo Reis Alves de Araújo, André Luís Calado 2022-12-18T18:26:42Zoai:ojs.pkp.sfu.ca:article/36819Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:51:14.417127Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Chitosan as a Strategy in the Treatment of Effluent
El Chitosan como Esatrategia en el Tratamiento de Aguas Residuales
Quitosana como Estratégia no Tratamento de Efeluentes
title Chitosan as a Strategy in the Treatment of Effluent
spellingShingle Chitosan as a Strategy in the Treatment of Effluent
Macêdo, Marina de Oliveira Cardoso
Chitosán
Efluente textile
Laguna de estabilización.
Chitosan
Textile effluent
Stabilization lagoon.
Quitosana
Efluente têxtil
Lagoa de estabilização.
title_short Chitosan as a Strategy in the Treatment of Effluent
title_full Chitosan as a Strategy in the Treatment of Effluent
title_fullStr Chitosan as a Strategy in the Treatment of Effluent
title_full_unstemmed Chitosan as a Strategy in the Treatment of Effluent
title_sort Chitosan as a Strategy in the Treatment of Effluent
author Macêdo, Marina de Oliveira Cardoso
author_facet Macêdo, Marina de Oliveira Cardoso
Macêdo, Haroldo Reis Alves de
Araújo, André Luís Calado
author_role author
author2 Macêdo, Haroldo Reis Alves de
Araújo, André Luís Calado
author2_role author
author
dc.contributor.author.fl_str_mv Macêdo, Marina de Oliveira Cardoso
Macêdo, Haroldo Reis Alves de
Araújo, André Luís Calado
dc.subject.por.fl_str_mv Chitosán
Efluente textile
Laguna de estabilización.
Chitosan
Textile effluent
Stabilization lagoon.
Quitosana
Efluente têxtil
Lagoa de estabilização.
topic Chitosán
Efluente textile
Laguna de estabilización.
Chitosan
Textile effluent
Stabilization lagoon.
Quitosana
Efluente têxtil
Lagoa de estabilização.
description The treatment of effluents requires new methodologies for the treatment of the tailings. One option is the use of natural coagulants. Chitosan has amino groups in the polymeric chains that allow it to act as a cationic polyelectrolyte and present a high density of charges, which are easily adsorbed on negatively charged surfaces, which is the case for most colloidal impurities present in water. Thus, this work used chitosan in the coagulation/flocculation process to remove color, turbidity and suspension of solids, as a strategy in the treatment of effluents. For that, samples of effluents from the textile industry in the of State of Rio Grande do Norte and samples of effluents from stabilization Lagoons in the municipalities of Touros and Santa Cruz were used in the coagulation/flocculation tests using jar-test. The results proved to be efficient for the removal of color, turbidity and suspension of solids from the samples. The best dosages were 22.5 mg/L and 37.5 mg/L for textile industry effluents, 52.5 mg/L and 60 mg/L for Santa Cruz lagoon effluent; 30 mg/L and 37.5 mg/L for effluent from Touros lagoon. It was observed in this work that chitosan presented in an optimal proportion, that is, the addition of more chitosan did not provide greater removal and that it can be used as a coagulant/flocculant in the treatment of effluents from both the textile industry and domestic effluents, replacing the synthetic coagulants or being used together with them.
publishDate 2022
dc.date.none.fl_str_mv 2022-11-28
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/36819
10.33448/rsd-v11i16.36819
url https://rsdjournal.org/index.php/rsd/article/view/36819
identifier_str_mv 10.33448/rsd-v11i16.36819
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/36819/31364
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 11 No. 16; e22111636819
Research, Society and Development; Vol. 11 Núm. 16; e22111636819
Research, Society and Development; v. 11 n. 16; e22111636819
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
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