Treatment of dairy wastewater with a membrane bioreactor
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 Chemical Engineering |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322013000400008 |
Resumo: | Among the food industries, the dairy industry is considered to be the most polluting one because of the large volume of wastewater generated and its high organic load. In this study, an aerobic membrane bioreactor (MBR) was used for the treatment of wastewater from a large dairy industry and two hydraulic retention times (HRT), 6 and 8 hours, were evaluated. For both HRTs removal efficiencies of organic matter of 99% were obtained. Despite high permeate flux (27.5 L/h.m²), the system operated fairly stablely. The molecular weight distribution of feed, permeate and mixed liquor showed that only the low molecular weight fraction is efficiently degraded by biomass and that the membrane has an essential role in producing a permeate of excellent quality. |
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Brazilian Journal of Chemical Engineering |
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Treatment of dairy wastewater with a membrane bioreactorMembrane Bioreactor (MBR)Dairy wastewaterMolecular weight distributionHydraulic Retention Time (HRT)Dynamic membraneSoluble Microbial Products (SMP)Extracellular Polymeric Substances (EPS)Among the food industries, the dairy industry is considered to be the most polluting one because of the large volume of wastewater generated and its high organic load. In this study, an aerobic membrane bioreactor (MBR) was used for the treatment of wastewater from a large dairy industry and two hydraulic retention times (HRT), 6 and 8 hours, were evaluated. For both HRTs removal efficiencies of organic matter of 99% were obtained. Despite high permeate flux (27.5 L/h.m²), the system operated fairly stablely. The molecular weight distribution of feed, permeate and mixed liquor showed that only the low molecular weight fraction is efficiently degraded by biomass and that the membrane has an essential role in producing a permeate of excellent quality.Brazilian Society of Chemical Engineering2013-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322013000400008Brazilian Journal of Chemical Engineering v.30 n.4 2013reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322013000400008info:eu-repo/semantics/openAccessAndrade,L. H.Motta,G. E.Amaral,M. C. S.eng2014-01-10T00:00:00Zoai:scielo:S0104-66322013000400008Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2014-01-10T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Treatment of dairy wastewater with a membrane bioreactor |
title |
Treatment of dairy wastewater with a membrane bioreactor |
spellingShingle |
Treatment of dairy wastewater with a membrane bioreactor Andrade,L. H. Membrane Bioreactor (MBR) Dairy wastewater Molecular weight distribution Hydraulic Retention Time (HRT) Dynamic membrane Soluble Microbial Products (SMP) Extracellular Polymeric Substances (EPS) |
title_short |
Treatment of dairy wastewater with a membrane bioreactor |
title_full |
Treatment of dairy wastewater with a membrane bioreactor |
title_fullStr |
Treatment of dairy wastewater with a membrane bioreactor |
title_full_unstemmed |
Treatment of dairy wastewater with a membrane bioreactor |
title_sort |
Treatment of dairy wastewater with a membrane bioreactor |
author |
Andrade,L. H. |
author_facet |
Andrade,L. H. Motta,G. E. Amaral,M. C. S. |
author_role |
author |
author2 |
Motta,G. E. Amaral,M. C. S. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Andrade,L. H. Motta,G. E. Amaral,M. C. S. |
dc.subject.por.fl_str_mv |
Membrane Bioreactor (MBR) Dairy wastewater Molecular weight distribution Hydraulic Retention Time (HRT) Dynamic membrane Soluble Microbial Products (SMP) Extracellular Polymeric Substances (EPS) |
topic |
Membrane Bioreactor (MBR) Dairy wastewater Molecular weight distribution Hydraulic Retention Time (HRT) Dynamic membrane Soluble Microbial Products (SMP) Extracellular Polymeric Substances (EPS) |
description |
Among the food industries, the dairy industry is considered to be the most polluting one because of the large volume of wastewater generated and its high organic load. In this study, an aerobic membrane bioreactor (MBR) was used for the treatment of wastewater from a large dairy industry and two hydraulic retention times (HRT), 6 and 8 hours, were evaluated. For both HRTs removal efficiencies of organic matter of 99% were obtained. Despite high permeate flux (27.5 L/h.m²), the system operated fairly stablely. The molecular weight distribution of feed, permeate and mixed liquor showed that only the low molecular weight fraction is efficiently degraded by biomass and that the membrane has an essential role in producing a permeate of excellent quality. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-12-01 |
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=S0104-66322013000400008 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322013000400008 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322013000400008 |
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 |
Brazilian Society of Chemical Engineering |
publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
dc.source.none.fl_str_mv |
Brazilian Journal of Chemical Engineering v.30 n.4 2013 reponame:Brazilian Journal of Chemical Engineering instname:Associação Brasileira de Engenharia Química (ABEQ) instacron:ABEQ |
instname_str |
Associação Brasileira de Engenharia Química (ABEQ) |
instacron_str |
ABEQ |
institution |
ABEQ |
reponame_str |
Brazilian Journal of Chemical Engineering |
collection |
Brazilian Journal of Chemical Engineering |
repository.name.fl_str_mv |
Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ) |
repository.mail.fl_str_mv |
rgiudici@usp.br||rgiudici@usp.br |
_version_ |
1754213174220947456 |