Does Chlorination of Seawater Reverse Osmosis Membranes Control Biofouling?

Handle URI:
http://hdl.handle.net/10754/550087
Title:
Does Chlorination of Seawater Reverse Osmosis Membranes Control Biofouling?
Authors:
Khan, Muhammad Tariq; Hong, Pei-Ying ( 0000-0002-4474-6600 ) ; Nada, Nabil; Croue, Jean Philippe
Abstract:
Biofouling is the major problem of reverse osmosis (RO) membranes used for desalting seawater (SW). The use of chlorine is a conventional and common practice to control/prevent biofouling. Unlike polyamide RO membranes, cellulose triacetate (CTA) RO membranes display a high chlorine tolerance. Due to this characteristic, CTA membranes are used in most of the RO plants located in the Middle East region where the elevated seawater temperature and water quality promote the risk of membrane biofouling. However, there is no detailed study on the investigation/characterization of CTA-RO membrane fouling. In this investigation, the fouling profile of a full–scale SWRO desalination plant operating with not only continuous chlorination of raw seawater but also intermittent chlorination of CTA-RO membranes was studied. Detailed water quality and membrane fouling analyses were conducted. Profiles of microbiological, inorganic, and organic constituents of analysed fouling layers were extensively discussed. Our results clearly identified biofilm development on these membranes. The incapability of chlorination on preventing biofilm formation on SWRO membranes could be assigned to its failure in effectively reaching throughout the different regions of the permeators. This failure could have occurred due to three main factors: plugging of membrane fibers, chlorine consumption by organics accumulated on the front side fibers, or chlorine adaptation of certain bacterial populations.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC)
Citation:
Khan, Muhammad Tariq, Pei-Ying Hong, Nabil Nada, and Jean Philippe Croue. "Does Chlorination of Seawater Reverse Osmosis Membranes Control Biofouling?." Water Research (2015).
Publisher:
Elsevier BV
Journal:
Water Research
Issue Date:
Apr-2015
DOI:
10.1016/j.watres.2015.03.029
Type:
Article
ISSN:
00431354
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0043135415002195
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorKhan, Muhammad Tariqen
dc.contributor.authorHong, Pei-Yingen
dc.contributor.authorNada, Nabilen
dc.contributor.authorCroue, Jean Philippeen
dc.date.accessioned2015-04-14T12:47:18Zen
dc.date.available2015-04-14T12:47:18Zen
dc.date.issued2015-04en
dc.identifier.citationKhan, Muhammad Tariq, Pei-Ying Hong, Nabil Nada, and Jean Philippe Croue. "Does Chlorination of Seawater Reverse Osmosis Membranes Control Biofouling?." Water Research (2015).en
dc.identifier.issn00431354en
dc.identifier.doi10.1016/j.watres.2015.03.029en
dc.identifier.urihttp://hdl.handle.net/10754/550087en
dc.description.abstractBiofouling is the major problem of reverse osmosis (RO) membranes used for desalting seawater (SW). The use of chlorine is a conventional and common practice to control/prevent biofouling. Unlike polyamide RO membranes, cellulose triacetate (CTA) RO membranes display a high chlorine tolerance. Due to this characteristic, CTA membranes are used in most of the RO plants located in the Middle East region where the elevated seawater temperature and water quality promote the risk of membrane biofouling. However, there is no detailed study on the investigation/characterization of CTA-RO membrane fouling. In this investigation, the fouling profile of a full–scale SWRO desalination plant operating with not only continuous chlorination of raw seawater but also intermittent chlorination of CTA-RO membranes was studied. Detailed water quality and membrane fouling analyses were conducted. Profiles of microbiological, inorganic, and organic constituents of analysed fouling layers were extensively discussed. Our results clearly identified biofilm development on these membranes. The incapability of chlorination on preventing biofilm formation on SWRO membranes could be assigned to its failure in effectively reaching throughout the different regions of the permeators. This failure could have occurred due to three main factors: plugging of membrane fibers, chlorine consumption by organics accumulated on the front side fibers, or chlorine adaptation of certain bacterial populations.en
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0043135415002195en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Water Research. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Water Research, 9 April 2015 DOI: 10.1016/j.watres.2015.03.029en
dc.titleDoes Chlorination of Seawater Reverse Osmosis Membranes Control Biofouling?en
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalWater Researchen
dc.eprint.versionPost-printen
dc.contributor.institutionNOMAC-Saudi Arabiaen
dc.contributor.institutionCurtin Water Quality Research Centre, Curtin University Perth WA Australiaen
kaust.authorKhan, Muhammaden
kaust.authorHong, Pei-Yingen
kaust.authorCroue, Jean-Philippeen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.