How different is the composition of the fouling layer of wastewater reuse and seawater desalination RO membranes?

Handle URI:
http://hdl.handle.net/10754/563669
Title:
How different is the composition of the fouling layer of wastewater reuse and seawater desalination RO membranes?
Authors:
Khan, Muhammad; Busch, Markus; Molina, Verónica García; Emwas, Abdul-Hamid M.; Aubry, Cyril; Croue, Jean-Philippe
Abstract:
To study the effect of water quality and operating parameters on membrane fouling, a comparative analysis of wastewater (WW) and seawater (SW) fouled reverse osmosis (RO) membranes was conducted. Membranes were harvested from SWRO and WWRO pilot plants located in Vilaseca (East Spain), both using ultrafiltration as pretreatment. The SWRO unit was fed with Mediterranean seawater and the WWRO unit was operated using secondary effluent collected from the municipal wastewater treatment plant. Lead and terminal SWRO and WWRO modules were autopsied after five months and three months of operation, respectively. Ultrastructural, chemical, and microbiological analyses of the fouling layers were performed. Results showed that the WWRO train had mainly bio/organic fouling at the lead position element and inorganic fouling at terminal position element, whereas SWRO train had bio/organic fouling at both end position elements. In the case of WWRO membranes, Betaproteobacteria was the major colonizing species; while Ca, S, and P were the major present inorganic elements. The microbial population of SWRO membranes was mainly represented by Alpha and Gammaproteobacteria. Ca, Fe, and S were the main identified inorganic elements of the fouling layer of SWRO membranes. These results confirmed that the RO fouling layer composition is strongly impacted by the source water quality. © 2014 Elsevier Ltd.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC); Advanced Nanofabrication, Imaging and Characterization Core Lab; Biological and Environmental Sciences and Engineering (BESE) Division; Water Desalination & Reuse Research Cntr
Publisher:
Elsevier BV
Journal:
Water Research
Issue Date:
Aug-2014
DOI:
10.1016/j.watres.2014.04.020
PubMed ID:
24810743
Type:
Article
ISSN:
00431354
Sponsors:
We thank Carmem Lara de O. Manes who was hired as consultant to interpret the pyrosequencing data. We also thank KAUST Analytical Core Lab for ICP-OES and CHNS analysis. Additionally, authors thankfully acknowledge the support received from KAUST WDRC lab staff. All the funds for this work were provided by King Abdullah University of Science and Technology (KAUST).
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorKhan, Muhammaden
dc.contributor.authorBusch, Markusen
dc.contributor.authorMolina, Verónica Garcíaen
dc.contributor.authorEmwas, Abdul-Hamid M.en
dc.contributor.authorAubry, Cyrilen
dc.contributor.authorCroue, Jean-Philippeen
dc.date.accessioned2015-08-03T12:05:40Zen
dc.date.available2015-08-03T12:05:40Zen
dc.date.issued2014-08en
dc.identifier.issn00431354en
dc.identifier.pmid24810743en
dc.identifier.doi10.1016/j.watres.2014.04.020en
dc.identifier.urihttp://hdl.handle.net/10754/563669en
dc.description.abstractTo study the effect of water quality and operating parameters on membrane fouling, a comparative analysis of wastewater (WW) and seawater (SW) fouled reverse osmosis (RO) membranes was conducted. Membranes were harvested from SWRO and WWRO pilot plants located in Vilaseca (East Spain), both using ultrafiltration as pretreatment. The SWRO unit was fed with Mediterranean seawater and the WWRO unit was operated using secondary effluent collected from the municipal wastewater treatment plant. Lead and terminal SWRO and WWRO modules were autopsied after five months and three months of operation, respectively. Ultrastructural, chemical, and microbiological analyses of the fouling layers were performed. Results showed that the WWRO train had mainly bio/organic fouling at the lead position element and inorganic fouling at terminal position element, whereas SWRO train had bio/organic fouling at both end position elements. In the case of WWRO membranes, Betaproteobacteria was the major colonizing species; while Ca, S, and P were the major present inorganic elements. The microbial population of SWRO membranes was mainly represented by Alpha and Gammaproteobacteria. Ca, Fe, and S were the main identified inorganic elements of the fouling layer of SWRO membranes. These results confirmed that the RO fouling layer composition is strongly impacted by the source water quality. © 2014 Elsevier Ltd.en
dc.description.sponsorshipWe thank Carmem Lara de O. Manes who was hired as consultant to interpret the pyrosequencing data. We also thank KAUST Analytical Core Lab for ICP-OES and CHNS analysis. Additionally, authors thankfully acknowledge the support received from KAUST WDRC lab staff. All the funds for this work were provided by King Abdullah University of Science and Technology (KAUST).en
dc.publisherElsevier BVen
dc.subjectMembrane foulingen
dc.subjectReverse osmosisen
dc.subjectSeawater desalinationen
dc.subjectWastewater reuseen
dc.titleHow different is the composition of the fouling layer of wastewater reuse and seawater desalination RO membranes?en
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentWater Desalination & Reuse Research Cntren
dc.identifier.journalWater Researchen
dc.contributor.institutionDow Water and Process Solutions, Spainen
kaust.authorKhan, Muhammaden
kaust.authorEmwas, Abdul-Hamid M.en
kaust.authorAubry, Cyrilen
kaust.authorCroue, Jean-Philippeen
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