Photo-fenton process for treating biological laboratory wastewater containing formaldehyde
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.26850/1678-4618EQJ.V35.1.2010.P25-33 http://hdl.handle.net/11449/233685 |
Resumo: | Laboratories 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. |
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Repositório Institucional da UNESP |
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Photo-fenton process for treating biological laboratory wastewater containing formaldehydeFormaldehydeLaboratory wastewater treatmentPhoto-FentonLaboratories 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.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)UNESP Waste Management Program UNESP – Univ Estadual Paulista Rectory OfficeInstitute of Chemistry UNESP – Univ Estadual Paulista, P.O.Box 355UNESP Waste Management Program UNESP – Univ Estadual Paulista Rectory OfficeInstitute of Chemistry UNESP – Univ Estadual Paulista, P.O.Box 355FAPESP: 02/07617-9Universidade Estadual Paulista (UNESP)Fonseca, Janaína Conrado L. [UNESP]Pupo Nogueira, Raquel F. [UNESP]Marchi, Mary Rosa Rodrigues [UNESP]2022-05-01T09:47:16Z2022-05-01T09:47:16Z2010-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article25-33http://dx.doi.org/10.26850/1678-4618EQJ.V35.1.2010.P25-33Ecletica Quimica, v. 35, n. 1, p. 25-33, 2010.1678-46180100-4670http://hdl.handle.net/11449/23368510.26850/1678-4618EQJ.V35.1.2010.P25-332-s2.0-85117196124Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEcletica Quimicainfo:eu-repo/semantics/openAccess2022-05-01T09:47:16Zoai:repositorio.unesp.br:11449/233685Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-05-01T09:47:16Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Photo-fenton process for treating biological laboratory wastewater containing formaldehyde |
title |
Photo-fenton process for treating biological laboratory wastewater containing formaldehyde |
spellingShingle |
Photo-fenton process for treating biological laboratory wastewater containing formaldehyde Fonseca, Janaína Conrado L. [UNESP] Formaldehyde Laboratory wastewater treatment Photo-Fenton |
title_short |
Photo-fenton process for treating biological laboratory wastewater containing formaldehyde |
title_full |
Photo-fenton process for treating biological laboratory wastewater containing formaldehyde |
title_fullStr |
Photo-fenton process for treating biological laboratory wastewater containing formaldehyde |
title_full_unstemmed |
Photo-fenton process for treating biological laboratory wastewater containing formaldehyde |
title_sort |
Photo-fenton process for treating biological laboratory wastewater containing formaldehyde |
author |
Fonseca, Janaína Conrado L. [UNESP] |
author_facet |
Fonseca, Janaína Conrado L. [UNESP] Pupo Nogueira, Raquel F. [UNESP] Marchi, Mary Rosa Rodrigues [UNESP] |
author_role |
author |
author2 |
Pupo Nogueira, Raquel F. [UNESP] Marchi, Mary Rosa Rodrigues [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Fonseca, Janaína Conrado L. [UNESP] Pupo Nogueira, Raquel F. [UNESP] Marchi, Mary Rosa Rodrigues [UNESP] |
dc.subject.por.fl_str_mv |
Formaldehyde Laboratory wastewater treatment Photo-Fenton |
topic |
Formaldehyde Laboratory wastewater treatment Photo-Fenton |
description |
Laboratories 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. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-01-01 2022-05-01T09:47:16Z 2022-05-01T09:47:16Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.26850/1678-4618EQJ.V35.1.2010.P25-33 Ecletica Quimica, v. 35, n. 1, p. 25-33, 2010. 1678-4618 0100-4670 http://hdl.handle.net/11449/233685 10.26850/1678-4618EQJ.V35.1.2010.P25-33 2-s2.0-85117196124 |
url |
http://dx.doi.org/10.26850/1678-4618EQJ.V35.1.2010.P25-33 http://hdl.handle.net/11449/233685 |
identifier_str_mv |
Ecletica Quimica, v. 35, n. 1, p. 25-33, 2010. 1678-4618 0100-4670 10.26850/1678-4618EQJ.V35.1.2010.P25-33 2-s2.0-85117196124 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ecletica Quimica |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
25-33 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964632205492224 |