Effects of ferric ions on the catalytic ozonation process on sanitary landfill leachates
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Ambiente & Água |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2013000100005 |
Resumo: | Leachates exhibiting an unstable ratio of biochemical oxygen demand (BOD) and chemical oxygen demand (COD) of approximately 0.45 are typical of new landfills in the City of Cachoeira Paulista, Brazil. Although the organic matter portion is bio-treatable, the presence of refractory leached organic material requires unconventional effluent-treatment processes. Leachate treatment with ozone oxidation, in the presence of ferric ions, acts as catalyst in the formation of hydroxyl radicals. Ozone was obtained by corona-discharge from high-purity O2 gas. The treatment was performed in natura in a jacketed borosilicate glass reactor containing 900 ml of leachate. The analyzed response variable was expressed as the concentration of dissolved organic carbon (DOC). In order to determine the optimal proportions to produce the greatest degradation rate for organic materials, variations in experimental O2 flow-fed to the generator, the Fe(iii) concentration, and the output of the ozonator were conducted over two experimental runs. Experimental models showed a DOC degradation on the order of 81.25%. |
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Effects of ferric ions on the catalytic ozonation process on sanitary landfill leachatesWastewater treatmentleachateadvanced oxidation processescatalytic ozonationdesign of experimentsLeachates exhibiting an unstable ratio of biochemical oxygen demand (BOD) and chemical oxygen demand (COD) of approximately 0.45 are typical of new landfills in the City of Cachoeira Paulista, Brazil. Although the organic matter portion is bio-treatable, the presence of refractory leached organic material requires unconventional effluent-treatment processes. Leachate treatment with ozone oxidation, in the presence of ferric ions, acts as catalyst in the formation of hydroxyl radicals. Ozone was obtained by corona-discharge from high-purity O2 gas. The treatment was performed in natura in a jacketed borosilicate glass reactor containing 900 ml of leachate. The analyzed response variable was expressed as the concentration of dissolved organic carbon (DOC). In order to determine the optimal proportions to produce the greatest degradation rate for organic materials, variations in experimental O2 flow-fed to the generator, the Fe(iii) concentration, and the output of the ozonator were conducted over two experimental runs. Experimental models showed a DOC degradation on the order of 81.25%.Instituto de Pesquisas Ambientais em Bacias Hidrográficas2013-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2013000100005Revista Ambiente & Água v.8 n.1 2013reponame:Revista Ambiente & Águainstname:Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)instacron:IPABHI10.4136/ambi-agua.958info:eu-repo/semantics/openAccessSouza,André Luiz deIzário Filho,Hélcio JoséPeixoto,André Luiz de CastroGuimarães,Oswaldo Luiz CobraLoures,Carla Cristina AlmeidaSamanamud,Gisella Rossana LamasSilva,Messias Borgeseng2013-10-08T00:00:00Zoai:scielo:S1980-993X2013000100005Revistahttp://www.ambi-agua.net/PUBhttps://old.scielo.br/oai/scielo-oai.php||ambi.agua@gmail.com1980-993X1980-993Xopendoar:2013-10-08T00:00Revista Ambiente & Água - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)false |
dc.title.none.fl_str_mv |
Effects of ferric ions on the catalytic ozonation process on sanitary landfill leachates |
title |
Effects of ferric ions on the catalytic ozonation process on sanitary landfill leachates |
spellingShingle |
Effects of ferric ions on the catalytic ozonation process on sanitary landfill leachates Souza,André Luiz de Wastewater treatment leachate advanced oxidation processes catalytic ozonation design of experiments |
title_short |
Effects of ferric ions on the catalytic ozonation process on sanitary landfill leachates |
title_full |
Effects of ferric ions on the catalytic ozonation process on sanitary landfill leachates |
title_fullStr |
Effects of ferric ions on the catalytic ozonation process on sanitary landfill leachates |
title_full_unstemmed |
Effects of ferric ions on the catalytic ozonation process on sanitary landfill leachates |
title_sort |
Effects of ferric ions on the catalytic ozonation process on sanitary landfill leachates |
author |
Souza,André Luiz de |
author_facet |
Souza,André Luiz de Izário Filho,Hélcio José Peixoto,André Luiz de Castro Guimarães,Oswaldo Luiz Cobra Loures,Carla Cristina Almeida Samanamud,Gisella Rossana Lamas Silva,Messias Borges |
author_role |
author |
author2 |
Izário Filho,Hélcio José Peixoto,André Luiz de Castro Guimarães,Oswaldo Luiz Cobra Loures,Carla Cristina Almeida Samanamud,Gisella Rossana Lamas Silva,Messias Borges |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Souza,André Luiz de Izário Filho,Hélcio José Peixoto,André Luiz de Castro Guimarães,Oswaldo Luiz Cobra Loures,Carla Cristina Almeida Samanamud,Gisella Rossana Lamas Silva,Messias Borges |
dc.subject.por.fl_str_mv |
Wastewater treatment leachate advanced oxidation processes catalytic ozonation design of experiments |
topic |
Wastewater treatment leachate advanced oxidation processes catalytic ozonation design of experiments |
description |
Leachates exhibiting an unstable ratio of biochemical oxygen demand (BOD) and chemical oxygen demand (COD) of approximately 0.45 are typical of new landfills in the City of Cachoeira Paulista, Brazil. Although the organic matter portion is bio-treatable, the presence of refractory leached organic material requires unconventional effluent-treatment processes. Leachate treatment with ozone oxidation, in the presence of ferric ions, acts as catalyst in the formation of hydroxyl radicals. Ozone was obtained by corona-discharge from high-purity O2 gas. The treatment was performed in natura in a jacketed borosilicate glass reactor containing 900 ml of leachate. The analyzed response variable was expressed as the concentration of dissolved organic carbon (DOC). In order to determine the optimal proportions to produce the greatest degradation rate for organic materials, variations in experimental O2 flow-fed to the generator, the Fe(iii) concentration, and the output of the ozonator were conducted over two experimental runs. Experimental models showed a DOC degradation on the order of 81.25%. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-04-01 |
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=S1980-993X2013000100005 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2013000100005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.4136/ambi-agua.958 |
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 |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas |
publisher.none.fl_str_mv |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas |
dc.source.none.fl_str_mv |
Revista Ambiente & Água v.8 n.1 2013 reponame:Revista Ambiente & Água instname:Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI) instacron:IPABHI |
instname_str |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI) |
instacron_str |
IPABHI |
institution |
IPABHI |
reponame_str |
Revista Ambiente & Água |
collection |
Revista Ambiente & Água |
repository.name.fl_str_mv |
Revista Ambiente & Água - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI) |
repository.mail.fl_str_mv |
||ambi.agua@gmail.com |
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1752129748601929728 |