The metabolic versatility of PAOs as an opportunity to obtain a highly P-enriched stream for further P-recovery

The effects of two sequencing batch reactor operation strategies for phosphorus stream enrichment over the biological phosphorus removal performance have been studied. The objective of both strategies is of performing an extraction cycle in order to obtain a new stream highly enriched with phosphoru...

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Autores: Acevedo Juárez, Brenda, Camiña, C., Corona, J. E., Borrás Falomir, Luis, Barat, Ramón|||0000-0003-0484-3614
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/62943
Acceso en línea:https://riunet.upv.es/handle/10251/62943
Access Level:acceso abierto
Palabra clave:Phosphorus recovery
Polyphosphate (poly-P)
Polyphosphate accumulating metabolism (PAM)
Glycogen accumulating metabolism (GAM)
Enhanced biological phosphorus removal (EBPR)
Sequencing batch reactor (SBR)
TECNOLOGIA DEL MEDIO AMBIENTE
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spelling The metabolic versatility of PAOs as an opportunity to obtain a highly P-enriched stream for further P-recoveryAcevedo Juárez, BrendaCamiña, C.Corona, J. E.Borrás Falomir, LuisBarat, Ramón|||0000-0003-0484-3614Phosphorus recoveryPolyphosphate (poly-P)Polyphosphate accumulating metabolism (PAM)Glycogen accumulating metabolism (GAM)Enhanced biological phosphorus removal (EBPR)Sequencing batch reactor (SBR)TECNOLOGIA DEL MEDIO AMBIENTEThe effects of two sequencing batch reactor operation strategies for phosphorus stream enrichment over the biological phosphorus removal performance have been studied. The objective of both strategies is of performing an extraction cycle in order to obtain a new stream highly enriched with phosphorus. In the 1st strategy the amount of influent volatile fatty acids (VFAs) is the same in each cycle; while in the 2nd strategy the influent VFAs concentration is increased during phosphorus extraction experiments. Despite the strong decrease of the stored poly-P inside the cells in both strategies after the recovery cycles, the ability of the systems to remove phosphorus was not affected. The P-release/HAcuptake ratio (changing from 0.73 to 0.21 mmol P mmol C-1) together with FISH analyses (around 85% of Accumulibacter through the experimental period) confirmed that a shift from PAM to GAM occurred after phosphorus enrichment in the 2nd strategy experiments. These results suggest that energy required for VFA uptake by polyphosphate-accumulating organisms (PAO5) was not only derived from polyphosphates degradation, but also from glycogen degradation. FISH also revealed that Type II Accumulibacter species are responsible of the metabolic shift. The strategy based on increasing influent VFAs concentration during phosphorus extraction experiments showed a higher extraction efficiency (from 46% to 76%), as higher phosphorus concentration within supernatant can be achieved (from 113.9 to 198.7 mg Pl(-1)). Following this strategy, it is possible to concentrate up to 81% of the incoming phosphorus in a single enriched stream. This suggests that, despite the extra addition of carbon source needed (9%), this strategy is more appropriate if phosphorus recovery for reuse purposes is required. (C) 2015 Elsevier BM. All rights reserved.This research work has been supported by the Generalitat Valenciana (GVPRE/2008/044) and the Polytechnic University of Valencia (PAID-06-08-3227), which are gratefully acknowledged. Special acknowledgements to Consejo Nacional de la Ciencia y la Tecnologia de Mexico (CONACYT) No. 207966.ElsevierDepartamento de Ingeniería Hidráulica y Medio AmbienteInstituto Universitario de Ingeniería del Agua y del Medio AmbienteEscuela Técnica Superior de Ingeniería de Caminos, Canales y PuertosGeneralitat ValencianaUniversitat Politècnica de ValènciaRepositorio Institucional de la Universitat Politècnica de València Riunet20152015-06-15journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/62943reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengGeneralitat Valenciana https://doi.org/10.13039/501100003359 GVPRE%2F2008%2F044Universitat Politècnica de València https://doi.org/10.13039/501100004233 PAID-06-08-3227open accesshttp://purl.org/coar/access_right/c_abf2Reserva de todos los derechoshttp://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/629432026-06-13T07:49:27Z
dc.title.none.fl_str_mv The metabolic versatility of PAOs as an opportunity to obtain a highly P-enriched stream for further P-recovery
title The metabolic versatility of PAOs as an opportunity to obtain a highly P-enriched stream for further P-recovery
spellingShingle The metabolic versatility of PAOs as an opportunity to obtain a highly P-enriched stream for further P-recovery
Acevedo Juárez, Brenda
Phosphorus recovery
Polyphosphate (poly-P)
Polyphosphate accumulating metabolism (PAM)
Glycogen accumulating metabolism (GAM)
Enhanced biological phosphorus removal (EBPR)
Sequencing batch reactor (SBR)
TECNOLOGIA DEL MEDIO AMBIENTE
title_short The metabolic versatility of PAOs as an opportunity to obtain a highly P-enriched stream for further P-recovery
title_full The metabolic versatility of PAOs as an opportunity to obtain a highly P-enriched stream for further P-recovery
title_fullStr The metabolic versatility of PAOs as an opportunity to obtain a highly P-enriched stream for further P-recovery
title_full_unstemmed The metabolic versatility of PAOs as an opportunity to obtain a highly P-enriched stream for further P-recovery
title_sort The metabolic versatility of PAOs as an opportunity to obtain a highly P-enriched stream for further P-recovery
dc.creator.none.fl_str_mv Acevedo Juárez, Brenda
Camiña, C.
Corona, J. E.
Borrás Falomir, Luis
Barat, Ramón|||0000-0003-0484-3614
author Acevedo Juárez, Brenda
author_facet Acevedo Juárez, Brenda
Camiña, C.
Corona, J. E.
Borrás Falomir, Luis
Barat, Ramón|||0000-0003-0484-3614
author_role author
author2 Camiña, C.
Corona, J. E.
Borrás Falomir, Luis
Barat, Ramón|||0000-0003-0484-3614
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Hidráulica y Medio Ambiente
Instituto Universitario de Ingeniería del Agua y del Medio Ambiente
Escuela Técnica Superior de Ingeniería de Caminos, Canales y Puertos
Generalitat Valenciana
Universitat Politècnica de València
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Phosphorus recovery
Polyphosphate (poly-P)
Polyphosphate accumulating metabolism (PAM)
Glycogen accumulating metabolism (GAM)
Enhanced biological phosphorus removal (EBPR)
Sequencing batch reactor (SBR)
TECNOLOGIA DEL MEDIO AMBIENTE
topic Phosphorus recovery
Polyphosphate (poly-P)
Polyphosphate accumulating metabolism (PAM)
Glycogen accumulating metabolism (GAM)
Enhanced biological phosphorus removal (EBPR)
Sequencing batch reactor (SBR)
TECNOLOGIA DEL MEDIO AMBIENTE
description The effects of two sequencing batch reactor operation strategies for phosphorus stream enrichment over the biological phosphorus removal performance have been studied. The objective of both strategies is of performing an extraction cycle in order to obtain a new stream highly enriched with phosphorus. In the 1st strategy the amount of influent volatile fatty acids (VFAs) is the same in each cycle; while in the 2nd strategy the influent VFAs concentration is increased during phosphorus extraction experiments. Despite the strong decrease of the stored poly-P inside the cells in both strategies after the recovery cycles, the ability of the systems to remove phosphorus was not affected. The P-release/HAcuptake ratio (changing from 0.73 to 0.21 mmol P mmol C-1) together with FISH analyses (around 85% of Accumulibacter through the experimental period) confirmed that a shift from PAM to GAM occurred after phosphorus enrichment in the 2nd strategy experiments. These results suggest that energy required for VFA uptake by polyphosphate-accumulating organisms (PAO5) was not only derived from polyphosphates degradation, but also from glycogen degradation. FISH also revealed that Type II Accumulibacter species are responsible of the metabolic shift. The strategy based on increasing influent VFAs concentration during phosphorus extraction experiments showed a higher extraction efficiency (from 46% to 76%), as higher phosphorus concentration within supernatant can be achieved (from 113.9 to 198.7 mg Pl(-1)). Following this strategy, it is possible to concentrate up to 81% of the incoming phosphorus in a single enriched stream. This suggests that, despite the extra addition of carbon source needed (9%), this strategy is more appropriate if phosphorus recovery for reuse purposes is required. (C) 2015 Elsevier BM. All rights reserved.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-06-15
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/62943
url https://riunet.upv.es/handle/10251/62943
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Generalitat Valenciana https://doi.org/10.13039/501100003359 GVPRE%2F2008%2F044
Universitat Politècnica de València https://doi.org/10.13039/501100004233 PAID-06-08-3227
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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