Photo-fenton process for treating biological laboratory wastewater containing formaldehyde

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dc.contributor.authorFonseca, Janaína Conrado L. [UNESP]
dc.contributor.authorPupo Nogueira, Raquel F. [UNESP]
dc.contributor.authorMarchi, Mary Rosa Rodrigues [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-05-01T09:47:16Z
dc.date.available2022-05-01T09:47:16Z
dc.date.issued2010-01-01
dc.description.abstractLaboratories consume great amounts of hazardous chemicals substances and consequently generate wastewater containing them, for example formaldehyde. This substance is widely utilized to preserve biological samples generating many liters of this residue every year. The present work proposes the use of the photo-Fenton process to treat formaldehyde wastewater using sunlight irradiation. Some aspects were investigated such as the iron source, sample and hydrogen peroxide concentration and also the use of stirred systems. The use of ferrioxalate (0.5 mmol L-1) improved the efficiency of the process in relation to the use of iron nitrate, while at least 1.0 mol L-1 H2O2 is necessary to treat the sample of the 500 mg C L-1. Under these conditions, every formaldehyde detectable was degradeted and 89% of the dissolved organic carbon was removed in two hours of exposure to sunlight. These results are satisfaction considerate for São Paulo State Environmental Agency.en
dc.description.affiliationUNESP Waste Management Program UNESP – Univ Estadual Paulista Rectory Office
dc.description.affiliationInstitute of Chemistry UNESP – Univ Estadual Paulista, P.O.Box 355
dc.description.affiliationUnespUNESP Waste Management Program UNESP – Univ Estadual Paulista Rectory Office
dc.description.affiliationUnespInstitute of Chemistry UNESP – Univ Estadual Paulista, P.O.Box 355
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 02/07617-9
dc.format.extent25-33
dc.identifierhttp://dx.doi.org/10.26850/1678-4618EQJ.V35.1.2010.P25-33
dc.identifier.citationEcletica Quimica, v. 35, n. 1, p. 25-33, 2010.
dc.identifier.doi10.26850/1678-4618EQJ.V35.1.2010.P25-33
dc.identifier.issn1678-4618
dc.identifier.issn0100-4670
dc.identifier.scopus2-s2.0-85117196124
dc.identifier.urihttp://hdl.handle.net/11449/233685
dc.language.isoeng
dc.relation.ispartofEcletica Quimica
dc.sourceScopus
dc.subjectFormaldehyde
dc.subjectLaboratory wastewater treatment
dc.subjectPhoto-Fenton
dc.titlePhoto-fenton process for treating biological laboratory wastewater containing formaldehydeen
dc.typeArtigo

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Artigos - Química Analítica - IQ