Non-traditional atrazine degradation induced by zero-valent-copper: process optimization by the Doehlert experimental design, intermediates detection and toxicity assessment

Página do item simplificado Estatísticas
dc.contributor.authorChiavone Filho, Osvaldo
dc.contributor.authorHollanda, Luana Rabelo
dc.contributor.authorGraça, Cátia A. L.
dc.contributor.authorAndrade, Lidiane M.
dc.contributor.authorMendes, Maria A.
dc.contributor.authorTeixeira, Antonio Carlos Silva Costa
dc.date.accessioned2021-11-29T14:41:52Z
dc.date.issued2018-11-01
dc.description.embargo2030
dc.description.resumoBACKGROUND Over recent years, several studies exploring new technologies capable of degrading persistent organochlorine compounds have been published. Special attention has been dedicated to atrazine (ATZ), due to its ecotoxicological relevance together with its frequent detection in the environment. Degradation of organochlorines via zero-valent metals has gained great importance given its practicality and versatility, zero-valent-iron (ZVI) being the most applied metal for this purpose. Alternatively, zero-valent-copper (ZVCu) was proved to exhibit higher reactivity against chlorinated aromatics, therefore deserving further investigation. RESULTS The optimum degradation conditions for ATZ removal with ZVCu were explored through a Doehlert experimental design. The same conditions were tested for the traditional ZVI, which confirmed that ZVCu was more reactive. The analysis of the degradation products suggests that both reductive and oxidative pathways coexist in the studied process. CONCLUSIONS ZVCu was effective in ATZ degradation, both by reductive and oxidation pathways, within a wide range of pH values, although faster in acidic media. The resulting solution from the experiment that promoted the fastest degradation is less toxic than ATZ against microalgae Chlorella vulgaris, which is a positive output regarding the application of this process as a pre-treatment step of ATZ-contaminated water matrices. © 2018 Society of Chemical Industrypt_BR
dc.identifier.citationHOLLANDA, Luana R.; GRAÇA, C. A. L.; ANDRADE, L. M.; MENDES, M. A.; CHIAVONE FILHO, Osvaldo; TEIXEIRA, A. C.S.C.. Non-traditional atrazine degradation induced by zero-valent-copper: process optimization by the Doehlert experimental design, intermediates detection and toxicity assessment. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, v. 94, p. 1156-1164, 2019. Disponível em: https://onlinelibrary.wiley.com/doi/epdf/10.1002/jctb.5862. Acesso em: 14 jul. 2021. https://doi.org/10.1002/jctb.5862.pt_BR
dc.identifier.doi10.1002/jctb.5862
dc.identifier.issn1097-4660
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/45053
dc.languageenpt_BR
dc.publisherJournal of Chemical Technology and Biotechnologypt_BR
dc.subjectZero-valent-copperpt_BR
dc.subjectAtrazinept_BR
dc.subjectMicroalgae toxicity assayspt_BR
dc.subjectOrganochlorinespt_BR
dc.subjectIntermediates identificationpt_BR
dc.titleNon-traditional atrazine degradation induced by zero-valent-copper: process optimization by the Doehlert experimental design, intermediates detection and toxicity assessmentpt_BR
dc.typearticlept_BR

Arquivos

Licença do Pacote

Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.45 KB
Formato:
Item-specific license agreed upon to submission
Nenhuma Miniatura disponível
Baixar

Coleções

CT - DEQ - Artigos publicados em periódicos
Repositório Institucional - UFRN Campus Universitário Lagoa NovaCEP 59078-970 Caixa postal 1524 Natal/RN - BrasilUniversidade Federal do Rio Grande do Norte© Copyright 2025. Todos os direitos reservados.
Contato+55 (84) 3342-2260 - R232Setor de Repositórios Digitaisrepositorio@bczm.ufrn.br
DSpaceIBICT
OasisBR
LAReferencia
Customizado pela CAT - BCZM