Diclofenac abatement using modified solar photo-fenton process with ammonium iron(III) citrate

Detalhes bibliográficos
Autor(a) principal: Trovó,Alam G.
Data de Publicação: 2011
Outros Autores: Nogueira,Raquel F. P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000600005
Resumo: The influence of pH on the degradation of the pharmaceutical diclofenac (DCF) by the solar/photo-Fenton process was investigated using ammonium iron(III) citrate complex (FecitNH4). Although the degradation efficiency decreased as the pH increased (in the pH range 5 to 8), the DCF concentration was lower than its limit of detection after 45 min irradiation while 77% of the total organic carbon was removed after 150 min irradiation at initial pH 7 (without further adjustment). A pseudo-first-order kinetics of DCF degradation was observed, which kinetic constant increased with the increase of the concentrations of FecitNH4 and H2O2. Lower DCF degradation was observed when present in a sewage treatment plant (STP) effluent sample, mainly due to the high concentration of carbonate and bicarbonate at pH 7. However, after adjusting the pH to 5, the DCF concentration was lower than its detection limit after 75 min irradiation.
id SBQ-2_56a99ecf3e88efd8c6e0bb3f7a46829f
oai_identifier_str oai:scielo:S0103-50532011000600005
network_acronym_str SBQ-2
network_name_str Journal of the Brazilian Chemical Society (Online)
repository_id_str
spelling Diclofenac abatement using modified solar photo-fenton process with ammonium iron(III) citratepharmaceuticalwastewateradvanced oxidation processiron complexThe influence of pH on the degradation of the pharmaceutical diclofenac (DCF) by the solar/photo-Fenton process was investigated using ammonium iron(III) citrate complex (FecitNH4). Although the degradation efficiency decreased as the pH increased (in the pH range 5 to 8), the DCF concentration was lower than its limit of detection after 45 min irradiation while 77% of the total organic carbon was removed after 150 min irradiation at initial pH 7 (without further adjustment). A pseudo-first-order kinetics of DCF degradation was observed, which kinetic constant increased with the increase of the concentrations of FecitNH4 and H2O2. Lower DCF degradation was observed when present in a sewage treatment plant (STP) effluent sample, mainly due to the high concentration of carbonate and bicarbonate at pH 7. However, after adjusting the pH to 5, the DCF concentration was lower than its detection limit after 75 min irradiation.Sociedade Brasileira de Química2011-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000600005Journal of the Brazilian Chemical Society v.22 n.6 2011reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532011000600005info:eu-repo/semantics/openAccessTrovó,Alam G.Nogueira,Raquel F. P.eng2011-06-10T00:00:00Zoai:scielo:S0103-50532011000600005Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2011-06-10T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Diclofenac abatement using modified solar photo-fenton process with ammonium iron(III) citrate
title Diclofenac abatement using modified solar photo-fenton process with ammonium iron(III) citrate
spellingShingle Diclofenac abatement using modified solar photo-fenton process with ammonium iron(III) citrate
Trovó,Alam G.
pharmaceutical
wastewater
advanced oxidation process
iron complex
title_short Diclofenac abatement using modified solar photo-fenton process with ammonium iron(III) citrate
title_full Diclofenac abatement using modified solar photo-fenton process with ammonium iron(III) citrate
title_fullStr Diclofenac abatement using modified solar photo-fenton process with ammonium iron(III) citrate
title_full_unstemmed Diclofenac abatement using modified solar photo-fenton process with ammonium iron(III) citrate
title_sort Diclofenac abatement using modified solar photo-fenton process with ammonium iron(III) citrate
author Trovó,Alam G.
author_facet Trovó,Alam G.
Nogueira,Raquel F. P.
author_role author
author2 Nogueira,Raquel F. P.
author2_role author
dc.contributor.author.fl_str_mv Trovó,Alam G.
Nogueira,Raquel F. P.
dc.subject.por.fl_str_mv pharmaceutical
wastewater
advanced oxidation process
iron complex
topic pharmaceutical
wastewater
advanced oxidation process
iron complex
description The influence of pH on the degradation of the pharmaceutical diclofenac (DCF) by the solar/photo-Fenton process was investigated using ammonium iron(III) citrate complex (FecitNH4). Although the degradation efficiency decreased as the pH increased (in the pH range 5 to 8), the DCF concentration was lower than its limit of detection after 45 min irradiation while 77% of the total organic carbon was removed after 150 min irradiation at initial pH 7 (without further adjustment). A pseudo-first-order kinetics of DCF degradation was observed, which kinetic constant increased with the increase of the concentrations of FecitNH4 and H2O2. Lower DCF degradation was observed when present in a sewage treatment plant (STP) effluent sample, mainly due to the high concentration of carbonate and bicarbonate at pH 7. However, after adjusting the pH to 5, the DCF concentration was lower than its detection limit after 75 min irradiation.
publishDate 2011
dc.date.none.fl_str_mv 2011-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000600005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000600005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532011000600005
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.22 n.6 2011
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
_version_ 1750318172283600896

Registros relacionados