UVA/persulfate-driven nonylphenol polyethoxylate degradation

Página do item simplificado
dc.contributor.authorNUNES, R.F.pt_BR
dc.contributor.authorTOMINAGA, F.K.pt_BR
dc.contributor.authorBORRELY, S.I.pt_BR
dc.contributor.authorTEIXEIRA, A.C.S.C.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2022-01-27T11:02:18Z
dc.date.available2022-01-27T11:02:18Z
dc.date.issued2022pt_BR
dc.description.abstractUV/persulfate (UV/PS) technologies have gained increased attention as efficient alternatives for removing pollutants from different classes, although processes based on the UVA-driven S2O2−8 (PS) activation have not yet been discussed in the literature for the removal of the nonionic surfactant nonylphenol polyethoxylate (NPEO). The present study investigated the simultaneous effect of the initial persulfate concentration ([PS]0) and specific photon emission rate (EP,0) on NPEO degradation by UVA/PS following a Doehlert experimental design. The results for [NPEO]0 = (4.65 ± 0.15) mg L−1 indicated more than 97.8% NPEO removal after 2 h, with pseudo first-order specific degradation rate (kobs) of 0.0320 min−1, for [PS]0 = 7.75 mmol L−1 and EP,0 = 0.437 μmol photons L−1 s−1. Under these conditions, NPEO half-life time was about 22 min, and the EC50-48 h (% v/v) values for Daphnia similis before and after treatment did not differ significantly. Higher values of EP,0 would influence NPEO removal for [PS]0 not higher than 8–10 mmol L−1, although lower degradation efficiencies were obtained with higher [NPEO]0 or real wastewater, except for longer reaction times. Additionally, UVA/PS showed to be efficient for tensoactivity removal, despite the negligible total organic carbon (TOC) removal achieved. Finally, UVC and UVA resulted in NPEO degradation higher than 96% and similar tensoactivity removals when UVA/PS was conducted under optimal conditions ([PS]0 = 10 mmol L−1; EP,0 = 0.324 μmol photons L−1 s−1), suggesting that UVA radiation available in solar light could be advantageously employed for NPEO removal at concentrations usually found in wastewater.pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipIDCNPq: 140657/2018-5pt_BR
dc.format.extent286-300pt_BR
dc.identifier.citationNUNES, R.F.; TOMINAGA, F.K.; BORRELY, S.I.; TEIXEIRA, A.C.S.C. UVA/persulfate-driven nonylphenol polyethoxylate degradation: effect of process conditions. <b>Environmental Technology</b>, v. 43, n. 2, p. 286-300, 2022. DOI: <a href="https://dx.doi.org/10.1080/09593330.2020.1786166">10.1080/09593330.2020.1786166</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/32665.
dc.identifier.doi10.1080/09593330.2020.1786166pt_BR
dc.identifier.fasciculo2pt_BR
dc.identifier.issn0959-3330pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9692-5539
dc.identifier.percentilfi41.1pt_BR
dc.identifier.percentilfiCiteScore71.67pt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/32665
dc.identifier.vol43pt_BR
dc.relation.ispartofEnvironmental Technologypt_BR
dc.rightsopenAccesspt_BR
dc.subjectsurfactants
dc.subjectpollution control
dc.subjectbiodegradation
dc.subjectpersulfates
dc.subjectultraviolet radiation
dc.subjectsurface tension
dc.titleUVA/persulfate-driven nonylphenol polyethoxylate degradationpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorSUELI IVONE BORRELY
ipen.autorFLAVIO KIYOSHI TOMINAGA
ipen.codigoautor150
ipen.codigoautor12754
ipen.contributor.ipenauthorSUELI IVONE BORRELY
ipen.contributor.ipenauthorFLAVIO KIYOSHI TOMINAGA
ipen.date.recebimento22-01
ipen.identifier.fi2.8pt_BR
ipen.identifier.fiCiteScore6.4pt_BR
ipen.identifier.ipendoc28433pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.identifier.ods6
ipen.range.fi1.500 - 2.999
ipen.range.percentilfi25.00 - 49.99
ipen.subtituloeffect of process conditionspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication76171e20-c8ac-475f-9006-27402113c92f
relation.isAuthorOfPublicationaa4a15b8-4ad7-4bb6-a280-c0de5cf947d6
relation.isAuthorOfPublication.latestForDiscoveryaa4a15b8-4ad7-4bb6-a280-c0de5cf947d6
sigepi.autor.atividadeBORRELY, S.I.:150:220:Npt_BR
sigepi.autor.atividadeTOMINAGA, F.K.:12754:220:Npt_BR
Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
28433.pdf
Tamanho:
2.9 MB
Formato:
Adobe Portable Document Format
Descrição:
Baixar
Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Baixar
Coleções
Periódicos