Effect of Hydraulic Retention Time on Nitrification in an AirLift Biological Reactor

Detalhes bibliográficos
Autor(a) principal: Furtado,A.A.L.
Data de Publicação: 1998
Outros Autores: Albuquerque,R.T., Leite,S.G.F., Peçanha,R.P.
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=S0104-66321998000300008
Resumo: The occurrence of nitrogenous compounds in industrial effluents at concentration levels above legal limits, is a well-known and serious pollution problem for the receiving body. The biological process for the removal of these substances, commonly referred to as ammoniacal nitrogen, is known as nitrification. Bacteria involved are mainly of the genuses Nitrosomonas and Nitrobacter. The aim of the present work was to study the effect of the hydraulic retention time (HRT) on the efficiency of ammonia removal from a petroleum refinery effluent using activated carbon particles as a biofilm support in an airlift bioreactor. The experiments were carried out using HRTs, equal to six, eight and ten hours. The results show that HRT equal to 8 and 10 hours were enough to reduce ammoniacal nitrogen concentration to levels below permited legal limits (5mg/L NH3-N). The reactor nitrifying performance was maximized at 85% removal of ammoniacal nitrogen, for a HRT equal to 10 hours.
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spelling Effect of Hydraulic Retention Time on Nitrification in an AirLift Biological ReactorNitrificationairliftHRTThe occurrence of nitrogenous compounds in industrial effluents at concentration levels above legal limits, is a well-known and serious pollution problem for the receiving body. The biological process for the removal of these substances, commonly referred to as ammoniacal nitrogen, is known as nitrification. Bacteria involved are mainly of the genuses Nitrosomonas and Nitrobacter. The aim of the present work was to study the effect of the hydraulic retention time (HRT) on the efficiency of ammonia removal from a petroleum refinery effluent using activated carbon particles as a biofilm support in an airlift bioreactor. The experiments were carried out using HRTs, equal to six, eight and ten hours. The results show that HRT equal to 8 and 10 hours were enough to reduce ammoniacal nitrogen concentration to levels below permited legal limits (5mg/L NH3-N). The reactor nitrifying performance was maximized at 85% removal of ammoniacal nitrogen, for a HRT equal to 10 hours.Brazilian Society of Chemical Engineering1998-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66321998000300008Brazilian Journal of Chemical Engineering v.15 n.3 1998reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66321998000300008info:eu-repo/semantics/openAccessFurtado,A.A.L.Albuquerque,R.T.Leite,S.G.F.Peçanha,R.P.eng1998-10-27T00:00:00Zoai:scielo:S0104-66321998000300008Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:1998-10-27T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv Effect of Hydraulic Retention Time on Nitrification in an AirLift Biological Reactor
title Effect of Hydraulic Retention Time on Nitrification in an AirLift Biological Reactor
spellingShingle Effect of Hydraulic Retention Time on Nitrification in an AirLift Biological Reactor
Furtado,A.A.L.
Nitrification
airlift
HRT
title_short Effect of Hydraulic Retention Time on Nitrification in an AirLift Biological Reactor
title_full Effect of Hydraulic Retention Time on Nitrification in an AirLift Biological Reactor
title_fullStr Effect of Hydraulic Retention Time on Nitrification in an AirLift Biological Reactor
title_full_unstemmed Effect of Hydraulic Retention Time on Nitrification in an AirLift Biological Reactor
title_sort Effect of Hydraulic Retention Time on Nitrification in an AirLift Biological Reactor
author Furtado,A.A.L.
author_facet Furtado,A.A.L.
Albuquerque,R.T.
Leite,S.G.F.
Peçanha,R.P.
author_role author
author2 Albuquerque,R.T.
Leite,S.G.F.
Peçanha,R.P.
author2_role author
author
author
dc.contributor.author.fl_str_mv Furtado,A.A.L.
Albuquerque,R.T.
Leite,S.G.F.
Peçanha,R.P.
dc.subject.por.fl_str_mv Nitrification
airlift
HRT
topic Nitrification
airlift
HRT
description The occurrence of nitrogenous compounds in industrial effluents at concentration levels above legal limits, is a well-known and serious pollution problem for the receiving body. The biological process for the removal of these substances, commonly referred to as ammoniacal nitrogen, is known as nitrification. Bacteria involved are mainly of the genuses Nitrosomonas and Nitrobacter. The aim of the present work was to study the effect of the hydraulic retention time (HRT) on the efficiency of ammonia removal from a petroleum refinery effluent using activated carbon particles as a biofilm support in an airlift bioreactor. The experiments were carried out using HRTs, equal to six, eight and ten hours. The results show that HRT equal to 8 and 10 hours were enough to reduce ammoniacal nitrogen concentration to levels below permited legal limits (5mg/L NH3-N). The reactor nitrifying performance was maximized at 85% removal of ammoniacal nitrogen, for a HRT equal to 10 hours.
publishDate 1998
dc.date.none.fl_str_mv 1998-09-01
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=S0104-66321998000300008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66321998000300008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0104-66321998000300008
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.15 n.3 1998
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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