Effect of operating conditions on the chemical phosphorus removal using ferric chloride by evaluating orthophosphate precipitation and sedimentation of formed precipitates in batch...

Autores
Caravelli, Alejandro Horacio; de Gregorio, Carolina; Zaritzky, Noemi Elisabet
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Chemical phosphate removal by Fe(III) involves the precipitation of ferric phosphate and subsequent sedimentation of Fe-P particles. Physical-chemical factors that affect the phosphorus (P) precipitation are well known; however, the factors affecting the sedimentation of Fe-P precipitates have been poorly studied. The aims of this work were: (a) To study the effect of pH, presence of biomass (3.0. g TSS/L) and settling time on the orthophosphate precipitation by ferric chloride in a batch system. (b) To determine the effect of these factors on the sedimentation of the formed Fe-P particles. (c) To evaluate the performance of a laboratory-scale continuous activated sludge (AS) reactor operated with phosphorus simultaneous precipitation by ferric chloride under the optimum operating conditions determined from previous batch assays. Results from batch studies showed that presence of AS biomass and prolonged settling times favored the P removal. According to the proposed equation, in presence of biomass, the settling rate of the Fe-P precipitates was 3-7 times higher than that corresponding to phosphate buffer system. In the continuous system, Fe-P precipitates were gradually incorporated to the biomass, improving the reactor performance. However, a gradual shift of the size distribution from large to poorly settling small flocs was observed. The system operated at a sludge age of 21. days achieved more rapidly better performance than at 40. days. This last system showed bad flocculation exhibiting smaller flocs than the reactor with younger sludge. Simultaneous determination of the accumulation rate of fixed solids, and floc size distribution allows monitoring these systems.
Fil: Caravelli, Alejandro Horacio. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: de Gregorio, Carolina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: Zaritzky, Noemi Elisabet. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Materia
Phosphorus Simultaneous Precipitation
Sedimentation
Ferric Chloride
Activated Sludge
Sludge Age
Image Analysis
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/82923
Acceder
id CONICETDig_8b3df42fae20345e2f98b02ee0804fa8
oai_identifier_str oai:ri.conicet.gov.ar:11336/82923
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effect of operating conditions on the chemical phosphorus removal using ferric chloride by evaluating orthophosphate precipitation and sedimentation of formed precipitates in batch and continuous systemsCaravelli, Alejandro Horaciode Gregorio, CarolinaZaritzky, Noemi ElisabetPhosphorus Simultaneous PrecipitationSedimentationFerric ChlorideActivated SludgeSludge AgeImage Analysishttps://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2Chemical phosphate removal by Fe(III) involves the precipitation of ferric phosphate and subsequent sedimentation of Fe-P particles. Physical-chemical factors that affect the phosphorus (P) precipitation are well known; however, the factors affecting the sedimentation of Fe-P precipitates have been poorly studied. The aims of this work were: (a) To study the effect of pH, presence of biomass (3.0. g TSS/L) and settling time on the orthophosphate precipitation by ferric chloride in a batch system. (b) To determine the effect of these factors on the sedimentation of the formed Fe-P particles. (c) To evaluate the performance of a laboratory-scale continuous activated sludge (AS) reactor operated with phosphorus simultaneous precipitation by ferric chloride under the optimum operating conditions determined from previous batch assays. Results from batch studies showed that presence of AS biomass and prolonged settling times favored the P removal. According to the proposed equation, in presence of biomass, the settling rate of the Fe-P precipitates was 3-7 times higher than that corresponding to phosphate buffer system. In the continuous system, Fe-P precipitates were gradually incorporated to the biomass, improving the reactor performance. However, a gradual shift of the size distribution from large to poorly settling small flocs was observed. The system operated at a sludge age of 21. days achieved more rapidly better performance than at 40. days. This last system showed bad flocculation exhibiting smaller flocs than the reactor with younger sludge. Simultaneous determination of the accumulation rate of fixed solids, and floc size distribution allows monitoring these systems.Fil: Caravelli, Alejandro Horacio. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; ArgentinaFil: de Gregorio, Carolina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; ArgentinaFil: Zaritzky, Noemi Elisabet. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; ArgentinaElsevier Science2012-10-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/82923Caravelli, Alejandro Horacio; de Gregorio, Carolina; Zaritzky, Noemi Elisabet; Effect of operating conditions on the chemical phosphorus removal using ferric chloride by evaluating orthophosphate precipitation and sedimentation of formed precipitates in batch and continuous systems; Elsevier Science; Chemical Engineering Journal; 209; 15-10-2012; 469-4771385-8947CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1385894712010935info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cej.2012.08.039info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:03:28Zoai:ri.conicet.gov.ar:11336/82923instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:03:28.373CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of operating conditions on the chemical phosphorus removal using ferric chloride by evaluating orthophosphate precipitation and sedimentation of formed precipitates in batch and continuous systems
title Effect of operating conditions on the chemical phosphorus removal using ferric chloride by evaluating orthophosphate precipitation and sedimentation of formed precipitates in batch and continuous systems
spellingShingle Effect of operating conditions on the chemical phosphorus removal using ferric chloride by evaluating orthophosphate precipitation and sedimentation of formed precipitates in batch and continuous systems
Caravelli, Alejandro Horacio
Phosphorus Simultaneous Precipitation
Sedimentation
Ferric Chloride
Activated Sludge
Sludge Age
Image Analysis
title_short Effect of operating conditions on the chemical phosphorus removal using ferric chloride by evaluating orthophosphate precipitation and sedimentation of formed precipitates in batch and continuous systems
title_full Effect of operating conditions on the chemical phosphorus removal using ferric chloride by evaluating orthophosphate precipitation and sedimentation of formed precipitates in batch and continuous systems
title_fullStr Effect of operating conditions on the chemical phosphorus removal using ferric chloride by evaluating orthophosphate precipitation and sedimentation of formed precipitates in batch and continuous systems
title_full_unstemmed Effect of operating conditions on the chemical phosphorus removal using ferric chloride by evaluating orthophosphate precipitation and sedimentation of formed precipitates in batch and continuous systems
title_sort Effect of operating conditions on the chemical phosphorus removal using ferric chloride by evaluating orthophosphate precipitation and sedimentation of formed precipitates in batch and continuous systems
dc.creator.none.fl_str_mv Caravelli, Alejandro Horacio
de Gregorio, Carolina
Zaritzky, Noemi Elisabet
author Caravelli, Alejandro Horacio
author_facet Caravelli, Alejandro Horacio
de Gregorio, Carolina
Zaritzky, Noemi Elisabet
author_role author
author2 de Gregorio, Carolina
Zaritzky, Noemi Elisabet
author2_role author
author
dc.subject.none.fl_str_mv Phosphorus Simultaneous Precipitation
Sedimentation
Ferric Chloride
Activated Sludge
Sludge Age
Image Analysis
topic Phosphorus Simultaneous Precipitation
Sedimentation
Ferric Chloride
Activated Sludge
Sludge Age
Image Analysis
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.7
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Chemical phosphate removal by Fe(III) involves the precipitation of ferric phosphate and subsequent sedimentation of Fe-P particles. Physical-chemical factors that affect the phosphorus (P) precipitation are well known; however, the factors affecting the sedimentation of Fe-P precipitates have been poorly studied. The aims of this work were: (a) To study the effect of pH, presence of biomass (3.0. g TSS/L) and settling time on the orthophosphate precipitation by ferric chloride in a batch system. (b) To determine the effect of these factors on the sedimentation of the formed Fe-P particles. (c) To evaluate the performance of a laboratory-scale continuous activated sludge (AS) reactor operated with phosphorus simultaneous precipitation by ferric chloride under the optimum operating conditions determined from previous batch assays. Results from batch studies showed that presence of AS biomass and prolonged settling times favored the P removal. According to the proposed equation, in presence of biomass, the settling rate of the Fe-P precipitates was 3-7 times higher than that corresponding to phosphate buffer system. In the continuous system, Fe-P precipitates were gradually incorporated to the biomass, improving the reactor performance. However, a gradual shift of the size distribution from large to poorly settling small flocs was observed. The system operated at a sludge age of 21. days achieved more rapidly better performance than at 40. days. This last system showed bad flocculation exhibiting smaller flocs than the reactor with younger sludge. Simultaneous determination of the accumulation rate of fixed solids, and floc size distribution allows monitoring these systems.
Fil: Caravelli, Alejandro Horacio. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: de Gregorio, Carolina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: Zaritzky, Noemi Elisabet. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
description Chemical phosphate removal by Fe(III) involves the precipitation of ferric phosphate and subsequent sedimentation of Fe-P particles. Physical-chemical factors that affect the phosphorus (P) precipitation are well known; however, the factors affecting the sedimentation of Fe-P precipitates have been poorly studied. The aims of this work were: (a) To study the effect of pH, presence of biomass (3.0. g TSS/L) and settling time on the orthophosphate precipitation by ferric chloride in a batch system. (b) To determine the effect of these factors on the sedimentation of the formed Fe-P particles. (c) To evaluate the performance of a laboratory-scale continuous activated sludge (AS) reactor operated with phosphorus simultaneous precipitation by ferric chloride under the optimum operating conditions determined from previous batch assays. Results from batch studies showed that presence of AS biomass and prolonged settling times favored the P removal. According to the proposed equation, in presence of biomass, the settling rate of the Fe-P precipitates was 3-7 times higher than that corresponding to phosphate buffer system. In the continuous system, Fe-P precipitates were gradually incorporated to the biomass, improving the reactor performance. However, a gradual shift of the size distribution from large to poorly settling small flocs was observed. The system operated at a sludge age of 21. days achieved more rapidly better performance than at 40. days. This last system showed bad flocculation exhibiting smaller flocs than the reactor with younger sludge. Simultaneous determination of the accumulation rate of fixed solids, and floc size distribution allows monitoring these systems.
publishDate 2012
dc.date.none.fl_str_mv 2012-10-15
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/82923
Caravelli, Alejandro Horacio; de Gregorio, Carolina; Zaritzky, Noemi Elisabet; Effect of operating conditions on the chemical phosphorus removal using ferric chloride by evaluating orthophosphate precipitation and sedimentation of formed precipitates in batch and continuous systems; Elsevier Science; Chemical Engineering Journal; 209; 15-10-2012; 469-477
1385-8947
CONICET Digital
CONICET
url http://hdl.handle.net/11336/82923
identifier_str_mv Caravelli, Alejandro Horacio; de Gregorio, Carolina; Zaritzky, Noemi Elisabet; Effect of operating conditions on the chemical phosphorus removal using ferric chloride by evaluating orthophosphate precipitation and sedimentation of formed precipitates in batch and continuous systems; Elsevier Science; Chemical Engineering Journal; 209; 15-10-2012; 469-477
1385-8947
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1385894712010935
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cej.2012.08.039
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613851438383104
score 13.070432

Publicaciones similares