Reversibility of fouling on ultrafiltration membrane by backwashing and chemical cleaning: differences in organic fractions behaviour

Membrane fouling is an inherent phenomenon in ultrafiltration (UF) membrane processes, making it necessary to periodically perform backwashes (BW) and chemical cleanings in place (CIP) to restore the initial permeability of the membrane. The objective of this study was (1) to explore systematically...

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Autores: Ferrer Mallén, Olga, Lefevre, Benoit, Prats, Guillem, Bernat Camí, Xavier, Gibert Agulló, Oriol|||0000-0002-7313-5147, Paraira Cardona, Miquel
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/102568
Acceso en línea:https://hdl.handle.net/2117/102568
https://dx.doi.org/10.1080/19443994.2015.1022807
Access Level:acceso abierto
Palabra clave:Ultrafiltration
Membranes (Technology)
Backwashing
Fouling reversibility
Organic fractions
Surface water treatment
Ultrafiltració
Membranes (Tecnologia)
Àrees temàtiques de la UPC::Enginyeria química
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spelling Reversibility of fouling on ultrafiltration membrane by backwashing and chemical cleaning: differences in organic fractions behaviourFerrer Mallén, OlgaLefevre, BenoitPrats, GuillemBernat Camí, XavierGibert Agulló, Oriol|||0000-0002-7313-5147Paraira Cardona, MiquelUltrafiltrationMembranes (Technology)BackwashingFouling reversibilityOrganic fractionsSurface water treatmentUltrafiltrationUltrafiltracióMembranes (Tecnologia)Àrees temàtiques de la UPC::Enginyeria químicaMembrane fouling is an inherent phenomenon in ultrafiltration (UF) membrane processes, making it necessary to periodically perform backwashes (BW) and chemical cleanings in place (CIP) to restore the initial permeability of the membrane. The objective of this study was (1) to explore systematically the effect of distinct BW-related variables (BW transmembrane pressure, duration, frequency and composition) on the reversibility of UF membrane fouling and on the permeate quality (in terms of total organic carbon, turbidity and UV absorbance) over successive filtration/BW cycles; and (2) to identify which organic fractions were most removed by the membrane and, of these, which were most detached after BW, alkaline and oxidant CIP and acid CIP episodes. For this purpose, a bench-scale outside-in hollow fibre module operated under dead-end filtration mode at constant transmembrane pressure and treating settled water from a drinking water treatment plant was employed. Dissolved organic carbon fractionation was performed by high-performance size-exclusion chromatography. Results showed that, in general, the more intensive the BW was (in terms of high transmembrane pressure, shortened frequency and prolonged duration) the more effective it was in removing fouling from the membrane. Concerning the composition of the water used for the BW, the addition of NaClO led to maximum fouling reversibility, closely followed by the combination of NaOH+NaClO, while citric acid and NaOH contributed little compared to water alone. However, results also showed that irreversible fouling was never completely avoided whatever the BW regime applied, leading to a gradual increase in the total resistance over time. Larger differences in the behaviour of the different organic fractions were observed. UF membrane preferentially retained the heaviest fraction of biopolymers (BP), while the intermediate fraction of humic substances (HS) was removed at a lower percentage and the lighter fractions seemed to entirely pass through the UF membrane. The successive application of BW and CIPs resulted in the detachment from the membrane of a significant percentage of the retained BP, whereas only a modest percentage of the retained HS.Peer Reviewed20162016-05-2020172017-03-16journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/102568https://dx.doi.org/10.1080/19443994.2015.1022807reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1025682026-05-27T15:37:01Z
dc.title.none.fl_str_mv Reversibility of fouling on ultrafiltration membrane by backwashing and chemical cleaning: differences in organic fractions behaviour
title Reversibility of fouling on ultrafiltration membrane by backwashing and chemical cleaning: differences in organic fractions behaviour
spellingShingle Reversibility of fouling on ultrafiltration membrane by backwashing and chemical cleaning: differences in organic fractions behaviour
Ferrer Mallén, Olga
Ultrafiltration
Membranes (Technology)
Backwashing
Fouling reversibility
Organic fractions
Surface water treatment
Ultrafiltration
Ultrafiltració
Membranes (Tecnologia)
Àrees temàtiques de la UPC::Enginyeria química
title_short Reversibility of fouling on ultrafiltration membrane by backwashing and chemical cleaning: differences in organic fractions behaviour
title_full Reversibility of fouling on ultrafiltration membrane by backwashing and chemical cleaning: differences in organic fractions behaviour
title_fullStr Reversibility of fouling on ultrafiltration membrane by backwashing and chemical cleaning: differences in organic fractions behaviour
title_full_unstemmed Reversibility of fouling on ultrafiltration membrane by backwashing and chemical cleaning: differences in organic fractions behaviour
title_sort Reversibility of fouling on ultrafiltration membrane by backwashing and chemical cleaning: differences in organic fractions behaviour
dc.creator.none.fl_str_mv Ferrer Mallén, Olga
Lefevre, Benoit
Prats, Guillem
Bernat Camí, Xavier
Gibert Agulló, Oriol|||0000-0002-7313-5147
Paraira Cardona, Miquel
author Ferrer Mallén, Olga
author_facet Ferrer Mallén, Olga
Lefevre, Benoit
Prats, Guillem
Bernat Camí, Xavier
Gibert Agulló, Oriol|||0000-0002-7313-5147
Paraira Cardona, Miquel
author_role author
author2 Lefevre, Benoit
Prats, Guillem
Bernat Camí, Xavier
Gibert Agulló, Oriol|||0000-0002-7313-5147
Paraira Cardona, Miquel
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ultrafiltration
Membranes (Technology)
Backwashing
Fouling reversibility
Organic fractions
Surface water treatment
Ultrafiltration
Ultrafiltració
Membranes (Tecnologia)
Àrees temàtiques de la UPC::Enginyeria química
topic Ultrafiltration
Membranes (Technology)
Backwashing
Fouling reversibility
Organic fractions
Surface water treatment
Ultrafiltration
Ultrafiltració
Membranes (Tecnologia)
Àrees temàtiques de la UPC::Enginyeria química
description Membrane fouling is an inherent phenomenon in ultrafiltration (UF) membrane processes, making it necessary to periodically perform backwashes (BW) and chemical cleanings in place (CIP) to restore the initial permeability of the membrane. The objective of this study was (1) to explore systematically the effect of distinct BW-related variables (BW transmembrane pressure, duration, frequency and composition) on the reversibility of UF membrane fouling and on the permeate quality (in terms of total organic carbon, turbidity and UV absorbance) over successive filtration/BW cycles; and (2) to identify which organic fractions were most removed by the membrane and, of these, which were most detached after BW, alkaline and oxidant CIP and acid CIP episodes. For this purpose, a bench-scale outside-in hollow fibre module operated under dead-end filtration mode at constant transmembrane pressure and treating settled water from a drinking water treatment plant was employed. Dissolved organic carbon fractionation was performed by high-performance size-exclusion chromatography. Results showed that, in general, the more intensive the BW was (in terms of high transmembrane pressure, shortened frequency and prolonged duration) the more effective it was in removing fouling from the membrane. Concerning the composition of the water used for the BW, the addition of NaClO led to maximum fouling reversibility, closely followed by the combination of NaOH+NaClO, while citric acid and NaOH contributed little compared to water alone. However, results also showed that irreversible fouling was never completely avoided whatever the BW regime applied, leading to a gradual increase in the total resistance over time. Larger differences in the behaviour of the different organic fractions were observed. UF membrane preferentially retained the heaviest fraction of biopolymers (BP), while the intermediate fraction of humic substances (HS) was removed at a lower percentage and the lighter fractions seemed to entirely pass through the UF membrane. The successive application of BW and CIPs resulted in the detachment from the membrane of a significant percentage of the retained BP, whereas only a modest percentage of the retained HS.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-05-20
2017
2017-03-16
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/102568
https://dx.doi.org/10.1080/19443994.2015.1022807
url https://hdl.handle.net/2117/102568
https://dx.doi.org/10.1080/19443994.2015.1022807
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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