Epicoccum nigrum and Cladosporium sp. for the treatment of oily effluent in an air-lift reactor
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Microbiology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200041 |
Resumo: | The metalworking industry is responsible for one of the most complex and difficult to handle oily effluents. These effluents consist of cutting fluids, which provide refrigeration and purification of metallic pieces in the machining system. When these effluents are biologically treated, is important to do this with autochthonous microorganisms; the use of these microorganisms (bioaugmentation) tends to be more efficient because they are already adapted to the existing pollutants. For this purpose, this study aimed to use two indigenous microorganisms, Epicoccum nigrum and Cladosporium sp. for metalworking effluent treatment using an air-lift reactor; the fungus Aspergillus niger (laboratory strain) was used as a reference microorganism. The original effluent characterization presented considerable pollutant potential. The color of the effluent was 1495 mg Pt/L, and it contained 59 mg/L H2O2, 53 mg/L total phenols, 2.5 mgO2/L dissolved oxygen (DO), and 887 mg/L oil and grease. The COD was 9147 mgO2/L and the chronic toxicity factor was 1667. Following biotreatment, the fungus Epicoccum nigrum was found to be the most efficient in reducing (effective reduction) the majority of the parameters (26% COD, 12% H2O2, 59% total phenols, and 40% oil and grease), while Cladosporium sp. was more efficient in color reduction (77%). |
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Epicoccum nigrum and Cladosporium sp. for the treatment of oily effluent in an air-lift reactorEpicoccum nigrumCladosporium sp.metalworking effluentair-lift reactorThe metalworking industry is responsible for one of the most complex and difficult to handle oily effluents. These effluents consist of cutting fluids, which provide refrigeration and purification of metallic pieces in the machining system. When these effluents are biologically treated, is important to do this with autochthonous microorganisms; the use of these microorganisms (bioaugmentation) tends to be more efficient because they are already adapted to the existing pollutants. For this purpose, this study aimed to use two indigenous microorganisms, Epicoccum nigrum and Cladosporium sp. for metalworking effluent treatment using an air-lift reactor; the fungus Aspergillus niger (laboratory strain) was used as a reference microorganism. The original effluent characterization presented considerable pollutant potential. The color of the effluent was 1495 mg Pt/L, and it contained 59 mg/L H2O2, 53 mg/L total phenols, 2.5 mgO2/L dissolved oxygen (DO), and 887 mg/L oil and grease. The COD was 9147 mgO2/L and the chronic toxicity factor was 1667. Following biotreatment, the fungus Epicoccum nigrum was found to be the most efficient in reducing (effective reduction) the majority of the parameters (26% COD, 12% H2O2, 59% total phenols, and 40% oil and grease), while Cladosporium sp. was more efficient in color reduction (77%).Sociedade Brasileira de Microbiologia2013-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200041Brazilian Journal of Microbiology v.44 n.2 2013reponame:Brazilian Journal of Microbiologyinstname:Sociedade Brasileira de Microbiologia (SBM)instacron:SBM10.1590/S1517-83822013000200041info:eu-repo/semantics/openAccessQueissada,Daniel DelgadoSilva,Flávio Teixeira daPenido,Juliana SundfeldSiqueira,Carolina Dell'AquilaPaiva,Tereza Cristina Brazil deeng2013-10-09T00:00:00Zoai:scielo:S1517-83822013000200041Revistahttps://www.scielo.br/j/bjm/ONGhttps://old.scielo.br/oai/scielo-oai.phpbjm@sbmicrobiologia.org.br||mbmartin@usp.br1678-44051517-8382opendoar:2013-10-09T00:00Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM)false |
dc.title.none.fl_str_mv |
Epicoccum nigrum and Cladosporium sp. for the treatment of oily effluent in an air-lift reactor |
title |
Epicoccum nigrum and Cladosporium sp. for the treatment of oily effluent in an air-lift reactor |
spellingShingle |
Epicoccum nigrum and Cladosporium sp. for the treatment of oily effluent in an air-lift reactor Queissada,Daniel Delgado Epicoccum nigrum Cladosporium sp. metalworking effluent air-lift reactor |
title_short |
Epicoccum nigrum and Cladosporium sp. for the treatment of oily effluent in an air-lift reactor |
title_full |
Epicoccum nigrum and Cladosporium sp. for the treatment of oily effluent in an air-lift reactor |
title_fullStr |
Epicoccum nigrum and Cladosporium sp. for the treatment of oily effluent in an air-lift reactor |
title_full_unstemmed |
Epicoccum nigrum and Cladosporium sp. for the treatment of oily effluent in an air-lift reactor |
title_sort |
Epicoccum nigrum and Cladosporium sp. for the treatment of oily effluent in an air-lift reactor |
author |
Queissada,Daniel Delgado |
author_facet |
Queissada,Daniel Delgado Silva,Flávio Teixeira da Penido,Juliana Sundfeld Siqueira,Carolina Dell'Aquila Paiva,Tereza Cristina Brazil de |
author_role |
author |
author2 |
Silva,Flávio Teixeira da Penido,Juliana Sundfeld Siqueira,Carolina Dell'Aquila Paiva,Tereza Cristina Brazil de |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Queissada,Daniel Delgado Silva,Flávio Teixeira da Penido,Juliana Sundfeld Siqueira,Carolina Dell'Aquila Paiva,Tereza Cristina Brazil de |
dc.subject.por.fl_str_mv |
Epicoccum nigrum Cladosporium sp. metalworking effluent air-lift reactor |
topic |
Epicoccum nigrum Cladosporium sp. metalworking effluent air-lift reactor |
description |
The metalworking industry is responsible for one of the most complex and difficult to handle oily effluents. These effluents consist of cutting fluids, which provide refrigeration and purification of metallic pieces in the machining system. When these effluents are biologically treated, is important to do this with autochthonous microorganisms; the use of these microorganisms (bioaugmentation) tends to be more efficient because they are already adapted to the existing pollutants. For this purpose, this study aimed to use two indigenous microorganisms, Epicoccum nigrum and Cladosporium sp. for metalworking effluent treatment using an air-lift reactor; the fungus Aspergillus niger (laboratory strain) was used as a reference microorganism. The original effluent characterization presented considerable pollutant potential. The color of the effluent was 1495 mg Pt/L, and it contained 59 mg/L H2O2, 53 mg/L total phenols, 2.5 mgO2/L dissolved oxygen (DO), and 887 mg/L oil and grease. The COD was 9147 mgO2/L and the chronic toxicity factor was 1667. Following biotreatment, the fungus Epicoccum nigrum was found to be the most efficient in reducing (effective reduction) the majority of the parameters (26% COD, 12% H2O2, 59% total phenols, and 40% oil and grease), while Cladosporium sp. was more efficient in color reduction (77%). |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01-01 |
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=S1517-83822013000200041 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200041 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1517-83822013000200041 |
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 Microbiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Microbiologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Microbiology v.44 n.2 2013 reponame:Brazilian Journal of Microbiology instname:Sociedade Brasileira de Microbiologia (SBM) instacron:SBM |
instname_str |
Sociedade Brasileira de Microbiologia (SBM) |
instacron_str |
SBM |
institution |
SBM |
reponame_str |
Brazilian Journal of Microbiology |
collection |
Brazilian Journal of Microbiology |
repository.name.fl_str_mv |
Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM) |
repository.mail.fl_str_mv |
bjm@sbmicrobiologia.org.br||mbmartin@usp.br |
_version_ |
1752122205246849024 |