Sourwater treatment by fenton process and its effect on phytotoxicity with Lactuca sativa

Detalhes bibliográficos
Autor(a) principal: Takashina, Thiago Atsushi
Data de Publicação: 2019
Outros Autores: Tavares, Celia Regina Granhen, Mafra, Marcos Rogério, Kolicheski, Mônica Beatriz, Igarashi-Mafra, Luciana
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Acta scientiarum. Technology (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/41288
Resumo: In this work, degradation of stripped sourwater by Fenton´s oxidation process was investigated by a central composite design and response surface methodology. The effects of initial concentrations of H2O2 and Fe2+ on the total phenols degradation was studied in a batch reactor. The optimum total phenols degradation was 92% achieved within an H2O2 concentration of 4.4 g L-1 and iron concentration of 162 mg L-1. The mathematical kinetic model adequately represented the experimental results. The results indicated that the Fenton oxidation rate (1/m) and removal efficiency (1/b) were more dependent on iron concentration than H2O2 concentration. After the Fenton process, the sourwater presented a seed germination rate (L. sativa) above 80%, indicating reduced phytotoxicity of the treated effluent. It was also observed that the H2O2 concentration significantly affected the inhibition concentration (IC50).
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spelling Sourwater treatment by fenton process and its effect on phytotoxicity with Lactuca sativapetroleum effluentadvanced oxidative processtotal phenolsbioassaysexperimental design.3.06.03.00-5In this work, degradation of stripped sourwater by Fenton´s oxidation process was investigated by a central composite design and response surface methodology. The effects of initial concentrations of H2O2 and Fe2+ on the total phenols degradation was studied in a batch reactor. The optimum total phenols degradation was 92% achieved within an H2O2 concentration of 4.4 g L-1 and iron concentration of 162 mg L-1. The mathematical kinetic model adequately represented the experimental results. The results indicated that the Fenton oxidation rate (1/m) and removal efficiency (1/b) were more dependent on iron concentration than H2O2 concentration. After the Fenton process, the sourwater presented a seed germination rate (L. sativa) above 80%, indicating reduced phytotoxicity of the treated effluent. It was also observed that the H2O2 concentration significantly affected the inhibition concentration (IC50).Universidade Estadual De Maringá2019-07-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/4128810.4025/actascitechnol.v41i1.41288Acta Scientiarum. Technology; Vol 41 (2019): Publicação Contínua; e41288Acta Scientiarum. Technology; v. 41 (2019): Publicação Contínua; e412881806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/41288/pdfCopyright (c) 2019 Acta Scientiarum. Technologyhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessTakashina, Thiago AtsushiTavares, Celia Regina GranhenMafra, Marcos RogérioKolicheski, Mônica BeatrizIgarashi-Mafra, Luciana2019-07-17T11:54:34Zoai:periodicos.uem.br/ojs:article/41288Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2019-07-17T11:54:34Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Sourwater treatment by fenton process and its effect on phytotoxicity with Lactuca sativa
title Sourwater treatment by fenton process and its effect on phytotoxicity with Lactuca sativa
spellingShingle Sourwater treatment by fenton process and its effect on phytotoxicity with Lactuca sativa
Takashina, Thiago Atsushi
petroleum effluent
advanced oxidative process
total phenols
bioassays
experimental design.
3.06.03.00-5
title_short Sourwater treatment by fenton process and its effect on phytotoxicity with Lactuca sativa
title_full Sourwater treatment by fenton process and its effect on phytotoxicity with Lactuca sativa
title_fullStr Sourwater treatment by fenton process and its effect on phytotoxicity with Lactuca sativa
title_full_unstemmed Sourwater treatment by fenton process and its effect on phytotoxicity with Lactuca sativa
title_sort Sourwater treatment by fenton process and its effect on phytotoxicity with Lactuca sativa
author Takashina, Thiago Atsushi
author_facet Takashina, Thiago Atsushi
Tavares, Celia Regina Granhen
Mafra, Marcos Rogério
Kolicheski, Mônica Beatriz
Igarashi-Mafra, Luciana
author_role author
author2 Tavares, Celia Regina Granhen
Mafra, Marcos Rogério
Kolicheski, Mônica Beatriz
Igarashi-Mafra, Luciana
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Takashina, Thiago Atsushi
Tavares, Celia Regina Granhen
Mafra, Marcos Rogério
Kolicheski, Mônica Beatriz
Igarashi-Mafra, Luciana
dc.subject.por.fl_str_mv petroleum effluent
advanced oxidative process
total phenols
bioassays
experimental design.
3.06.03.00-5
topic petroleum effluent
advanced oxidative process
total phenols
bioassays
experimental design.
3.06.03.00-5
description In this work, degradation of stripped sourwater by Fenton´s oxidation process was investigated by a central composite design and response surface methodology. The effects of initial concentrations of H2O2 and Fe2+ on the total phenols degradation was studied in a batch reactor. The optimum total phenols degradation was 92% achieved within an H2O2 concentration of 4.4 g L-1 and iron concentration of 162 mg L-1. The mathematical kinetic model adequately represented the experimental results. The results indicated that the Fenton oxidation rate (1/m) and removal efficiency (1/b) were more dependent on iron concentration than H2O2 concentration. After the Fenton process, the sourwater presented a seed germination rate (L. sativa) above 80%, indicating reduced phytotoxicity of the treated effluent. It was also observed that the H2O2 concentration significantly affected the inhibition concentration (IC50).
publishDate 2019
dc.date.none.fl_str_mv 2019-07-04
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 http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/41288
10.4025/actascitechnol.v41i1.41288
url http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/41288
identifier_str_mv 10.4025/actascitechnol.v41i1.41288
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/41288/pdf
dc.rights.driver.fl_str_mv Copyright (c) 2019 Acta Scientiarum. Technology
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2019 Acta Scientiarum. Technology
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 Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Technology; Vol 41 (2019): Publicação Contínua; e41288
Acta Scientiarum. Technology; v. 41 (2019): Publicação Contínua; e41288
1806-2563
1807-8664
reponame:Acta scientiarum. Technology (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta scientiarum. Technology (Online)
collection Acta scientiarum. Technology (Online)
repository.name.fl_str_mv Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actatech@uem.br
_version_ 1799315336896446464

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