Biological phosphate removal using a degradable carbon source produced by hydrothermal treatment of excess sludge
Autor(a) principal: | |
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Data de Publicação: | 2006 |
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=S0104-66322006000100004 |
Resumo: | The possibility of reusing excess sludge treated by hydrothermal reaction for the purpose of improving the efficiency of the enhanced biological phosphate removal (EBPR) process was investigated. Excess sludge from a fish-processing industry located in Japan was treated in high-temperature and high-pressure water, at a reaction temperature ranging from 200 to 400ºC, a pressure of 1.8 to 30MPa and a constant reaction time of 7 min. For the conditions tested, the results showed that when the reaction temperature was increased the content of readily biodegradable substrate in the total COD Cr increased. In addition, the amount of some volatile fatty acids (VFAs) produced by the hydrothermal reaction increased as reaction temperature increased. From the phosphate release tests under anaerobic conditions, it was possible to demonstrate that not only the VFAs, but also the readily and slowly biodegradable substrates are used as potential carbon source by the phosphate-accumulating organisms (PAOs). |
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Brazilian Journal of Chemical Engineering |
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Biological phosphate removal using a degradable carbon source produced by hydrothermal treatment of excess sludgeCOD Cr characterization enhanced biological phosphate removal (EBPR)Excess sludgeHydrothermal reactionReadily biodegradable substrateThe possibility of reusing excess sludge treated by hydrothermal reaction for the purpose of improving the efficiency of the enhanced biological phosphate removal (EBPR) process was investigated. Excess sludge from a fish-processing industry located in Japan was treated in high-temperature and high-pressure water, at a reaction temperature ranging from 200 to 400ºC, a pressure of 1.8 to 30MPa and a constant reaction time of 7 min. For the conditions tested, the results showed that when the reaction temperature was increased the content of readily biodegradable substrate in the total COD Cr increased. In addition, the amount of some volatile fatty acids (VFAs) produced by the hydrothermal reaction increased as reaction temperature increased. From the phosphate release tests under anaerobic conditions, it was possible to demonstrate that not only the VFAs, but also the readily and slowly biodegradable substrates are used as potential carbon source by the phosphate-accumulating organisms (PAOs).Brazilian Society of Chemical Engineering2006-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322006000100004Brazilian Journal of Chemical Engineering v.23 n.1 2006reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322006000100004info:eu-repo/semantics/openAccessHaraguchi,L. H.Fujita,M.Daimon,H.Fujie,K.Mohamed,R. S.eng2006-07-07T00:00:00Zoai:scielo:S0104-66322006000100004Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2006-07-07T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Biological phosphate removal using a degradable carbon source produced by hydrothermal treatment of excess sludge |
title |
Biological phosphate removal using a degradable carbon source produced by hydrothermal treatment of excess sludge |
spellingShingle |
Biological phosphate removal using a degradable carbon source produced by hydrothermal treatment of excess sludge Haraguchi,L. H. COD Cr characterization enhanced biological phosphate removal (EBPR) Excess sludge Hydrothermal reaction Readily biodegradable substrate |
title_short |
Biological phosphate removal using a degradable carbon source produced by hydrothermal treatment of excess sludge |
title_full |
Biological phosphate removal using a degradable carbon source produced by hydrothermal treatment of excess sludge |
title_fullStr |
Biological phosphate removal using a degradable carbon source produced by hydrothermal treatment of excess sludge |
title_full_unstemmed |
Biological phosphate removal using a degradable carbon source produced by hydrothermal treatment of excess sludge |
title_sort |
Biological phosphate removal using a degradable carbon source produced by hydrothermal treatment of excess sludge |
author |
Haraguchi,L. H. |
author_facet |
Haraguchi,L. H. Fujita,M. Daimon,H. Fujie,K. Mohamed,R. S. |
author_role |
author |
author2 |
Fujita,M. Daimon,H. Fujie,K. Mohamed,R. S. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Haraguchi,L. H. Fujita,M. Daimon,H. Fujie,K. Mohamed,R. S. |
dc.subject.por.fl_str_mv |
COD Cr characterization enhanced biological phosphate removal (EBPR) Excess sludge Hydrothermal reaction Readily biodegradable substrate |
topic |
COD Cr characterization enhanced biological phosphate removal (EBPR) Excess sludge Hydrothermal reaction Readily biodegradable substrate |
description |
The possibility of reusing excess sludge treated by hydrothermal reaction for the purpose of improving the efficiency of the enhanced biological phosphate removal (EBPR) process was investigated. Excess sludge from a fish-processing industry located in Japan was treated in high-temperature and high-pressure water, at a reaction temperature ranging from 200 to 400ºC, a pressure of 1.8 to 30MPa and a constant reaction time of 7 min. For the conditions tested, the results showed that when the reaction temperature was increased the content of readily biodegradable substrate in the total COD Cr increased. In addition, the amount of some volatile fatty acids (VFAs) produced by the hydrothermal reaction increased as reaction temperature increased. From the phosphate release tests under anaerobic conditions, it was possible to demonstrate that not only the VFAs, but also the readily and slowly biodegradable substrates are used as potential carbon source by the phosphate-accumulating organisms (PAOs). |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-03-01 |
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=S0104-66322006000100004 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322006000100004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322006000100004 |
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.23 n.1 2006 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 |
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1754213171943440384 |